GIS three-phase conductor installation positioning device and method

Abstract

The invention discloses a GIS three-phase conductor installation positioning device and method. The GIS three-phase conductor installation positioning device comprises a GIS cylinder, a GIS cylinder flange, a reference positioning module, a photoelectric emission module, a photoelectric receiving module, a power supply module, an information processing module and an information output module. And the GIS cylinder flange is fixed on the end face of the GIS cylinder. The non-contact type detection mode that the photoelectric emission module is matched with the photoelectric receiving module is adopted, the photoelectric emitter is fixed to the positioning plate installation station, the photoelectric receiver is fixed to the end of the three-phase conductor, positioning state judgment is completed by modulating receiving and sending of pulse light beams, direct mechanical contact between the conductor and a positioning part does not exist in the whole process, and the detection precision is high. According to the detection mode, the damage to the surface of the conductor caused by contact plugging is completely eradicated from the source, the potential discharge hidden danger is eliminated, meanwhile, metal particles or chippings generated by mechanical friction are avoided, and the high cleanliness of the interior of the gas chamber of the gas-insulated metal-enclosed switch device can be maintained.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical technology, specifically to a GIS three-phase conductor installation and positioning device and method. Background Technology

[0002] Gas-insulated metal-enclosed switchgear (GIS) is a core component of modern substations. The precise installation and positioning of its three-phase conductors is a crucial step in ensuring a uniform electric field within the device, mitigating partial discharge issues, and guaranteeing long-term stable operation. Insufficient positioning accuracy of the three-phase conductors can create serious insulation hazards and affect the reliability of the overall power supply system. Currently, the industry commonly uses specialized three-phase positioning fixtures for conductor positioning. These fixtures include a fixing plate mounted on the flange end face of the cylinder. The fixing plate has positioning holes or a positioning cylinder installed according to the theoretical positions of the three-phase conductors. Operators must repeatedly adjust the positions of the three-phase conductors until the conductor ends can be inserted into the positioning holes or positioning cylinders without obstruction, thus determining that the three-phase conductors are properly positioned.

[0003] Existing positioning methods have several technical drawbacks. First, there is a risk of equipment damage. Direct contact and insertion / removal of the conductor end with the positioning hole or positioning cylinder can easily damage the conductor surface, creating potential discharge points and threatening the long-term operational safety of the equipment. Second, the work efficiency is low. The entire positioning process is a blind operation without real-time feedback. Operators cannot know the real-time deviation between the conductor and the target position and can only rely on experience to repeatedly try to insert it, which is not only time-consuming but also highly dependent on the operator's technical experience. Third, there is a cleanliness hazard. The mechanical contact process can easily generate metal particles or debris, which can contaminate the gas chamber of the gas-insulated metal-enclosed switchgear, reducing the overall insulation strength of the equipment. Fourth, the function is relatively simple, only providing a binary judgment result of positioning success or failure. It cannot provide directional guidance for operators during the adjustment process, nor does it have the ability to record positioning process data.

[0004] Therefore, the industry urgently needs a three-phase conductor installation and positioning device and supporting method that can achieve non-contact detection, has real-time intelligent guidance function, can ensure equipment cleanliness, and can complete the retention of positioning data. This would solve the shortcomings of existing technologies in terms of positioning quality, operation efficiency, equipment safety and functional integrity, and promote the upgrading of the three-phase conductor positioning process of gas-insulated metal-enclosed switchgear towards intelligent standardization. Summary of the Invention

[0005] The purpose of this invention is to provide a GIS three-phase conductor installation and positioning device and method to solve the problems existing in the current GIS three-phase conductor installation and positioning operations mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a GIS three-phase conductor installation and positioning device, comprising a GIS cylinder, a GIS cylinder flange, a reference positioning module, a photoelectric transmitting module, a photoelectric receiving module, a power supply module, an information processing module, and an information output module; The GIS cylinder flange is fixed to the end face of the GIS cylinder; The GIS cylinder is equipped with a three-phase conductor; The reference positioning module includes a positioning plate, which is installed on the end face of the GIS cylinder flange by positioning pins and positioning nuts. The center position of the positioning plate is set with several sets of installation positions according to the three-phase theory. Two sets of wire-passing grooves are opened through the positioning plate. Sliding grooves are opened on both sides of the inner wall of the wire-passing grooves. A slider is movably installed in the wire-passing groove. The two ends of the slider are slidably connected to the two sets of sliding grooves respectively. A traction wire harness frame is fixedly connected to the front end of the slider. Several sets of springs are fixedly connected at equal intervals on the inner wall of one side of the upper end of the traction wire harness frame. The springs are fixedly connected to limit posts. The limit posts abut against the inner wall of the other side of the upper end of the traction wire harness frame by the elastic force of the springs. The photoelectric emission module includes several sets of photoelectric emitters, and the several sets of photoelectric emitters are respectively fixed on several sets of installation stations; The photoelectric receiving module includes several sets of photoelectric receivers, and the several sets of photoelectric receivers are fixed to the ends of the three-phase conductor; The power supply module is electrically connected to the photoelectric transmitting module, the photoelectric receiving module, the information processing module, and the information output module; The information processing module is electrically connected to the photoelectric receiving module. The information processing module is adapted to receive and process the electrical signals of the photoelectric receiver, determine the positioning state of each phase conductor of the three-phase conductor according to preset logic, and generate a corresponding judgment result signal. The information output module is connected to the information processing module. The information output module is adapted to receive the judgment result signal and outputs the positioning status information to the operator in a visual, audible or digital communication manner.

[0007] Preferably, the information processing module includes: The signal conditioning unit is adapted to amplify, filter, and shape the weak electrical signal output by the photodetector to eliminate noise interference and improve signal stability. The logic judgment unit is adapted to compare the electrical signal processed by the signal conditioning unit with a preset positioning qualification threshold and execute the judgment logic of the positioning status of the three-phase conductor. The three-phase conductor global positioning is determined to be completed if and only if the output signals of all the photoelectric receivers corresponding to the three-phase conductors continuously exceed the preset positioning qualification threshold.

[0008] Preferably, the logic judgment unit uses a microprocessor as its core computing component, and the microprocessor is configured to execute the following positioning judgment-related calculation and control logic: The positioning status of each phase conductor of the three-phase conductor is independently identified, and the phase that has not met the positioning qualification requirements is clearly determined; Based on the relative change trend of the output signal strength of each photoelectric receiver, the spatial offset direction of the unpositioned qualified phase conductor is calculated and determined; The integrated delay confirmation control logic updates the output signal of the logic judgment unit only when the duration of the occlusion state or the qualified positioning state reaches a preset time threshold, thus avoiding false triggering caused by instantaneous signal fluctuations.

[0009] Preferably, the information output module includes one or more of the following output formats: The status indicator includes multiple sets of tri-color LEDs, each set of LEDs corresponding to one phase of the three-phase conductor. Green indicates that the corresponding phase conductor is in the correct position, yellow indicates that the corresponding phase conductor is close to being in the correct position, and red indicates that the corresponding phase conductor has not reached the correct position. An acoustic prompter is configured to emit a preset specific tone prompt signal when all phases in the three-phase conductors have reached the global positioning completion state where positioning is qualified. A digital display screen is suitable for displaying in real time the output signal strength values ​​of the corresponding photodetectors in the three phase conductors, as well as text-based guidance and adjustment information for unpositioned qualified phase conductors; The data communication interface is suitable for uploading the corresponding positioning status data of each of the three phase conductors and the global positioning status data to the host computer or programmable logic controller (PLC).

[0010] Preferably, the power supply module is a rechargeable lithium battery pack and integrates a power management circuit, which can provide various voltage levels required by each module in the device.

[0011] Preferably, the photoelectric emission module further integrates a pulse modulation circuit, the signal output terminal of which is electrically connected to the driving terminal of the photoelectric transmitter. The pulse modulation circuit outputs a modulation driving signal of a specific frequency to the photoelectric transmitter to drive the photoelectric transmitter to emit a modulated pulse beam of the corresponding frequency. The information processing module has a built-in demodulation circuit that matches the pulse modulation circuit. The signal input terminal of the demodulation circuit is electrically connected to the signal output terminal of the signal conditioning unit. The demodulation circuit filters out effective photoelectric signals of a specific frequency from the mixed signal to filter out signal interference caused by ambient stray light.

[0012] Preferably, the width of both ends of the slider is adapted to the width of the groove, and the traction harness frame has a "U" shaped structure.

[0013] A GIS three-phase conductor installation and positioning method based on any one of the three-phase conductor installation and positioning devices includes the following steps: S1) Attach the positioning plate to the end face of the GIS cylinder flange, aligning the installation position of the positioning plate with the theoretical center position of the three-phase conductor inside the GIS cylinder. Then, insert the positioning pin into the corresponding positioning hole of the positioning plate and the GIS cylinder flange, tighten the positioning nut to complete the fixing of the reference positioning module, and at the same time, adjust the slider in the wire groove along the groove to the position that matches the wire harness direction to pre-fix the initial posture of the traction wire harness frame. S2) Secure the photoelectric receiver to the end of the three-phase conductor, ensuring that the receiving end of the photoelectric receiver is directly opposite the photoelectric transmitter at the corresponding installation position on the positioning plate; thread the connecting cables of the photoelectric transmitter module and the photoelectric receiver module through the wire groove of the positioning plate, place them inside the traction harness frame, and drive the limiting post to abut against the inner wall of the traction harness frame by the elastic force of the spring to limit the harness and complete the harness arrangement. Then complete the electrical connection between the power supply module and the photoelectric transmitter module, the photoelectric receiver module, the information processing module and the information output module. S3) Turn on the power switch of the power supply module. After each module completes the power-on self-test, confirm that the pulse modulation circuit of the photoelectric transmitter module is started. The photoelectric transmitter stably emits a modulated pulse beam of a specific frequency, and the information output module enters the standby display state. S4) The operator uses the hoisting equipment to adjust the spatial attitude of the three-phase conductors and simultaneously observes the positioning status feedback of the information output module, including the status of the three-color LED indicator lights corresponding to each phase conductor, the signal strength value of the digital display screen, and the text guidance information. S5) Guided by the information output module, the phase conductors that have not reached the qualified positioning state are precisely fine-tuned until the logic judgment unit of the information processing module determines that the output signals of all photoelectric receivers corresponding to the three phase conductors have continuously exceeded the preset qualified positioning threshold, and the information output module issues an acoustic prompt and visual signal indicating that global positioning is completed. S6) Maintain the positioning posture of the three-phase conductors, perform a fastening operation on the three-phase conductors and complete the insulation protection treatment, then release the limiting post from the cable limit constraint, retrieve the connecting cable in the cable tray, and remove the photoelectric receiver, positioning plate and other positioning device components in sequence to complete the overall positioning operation.

[0014] Preferably, in step S5, after the information output module sends a global positioning completion signal, a positioning verification operation can also be performed: Keeping the three-phase conductors in the same position, the delay confirmation time is extended to 500 milliseconds to 1000 milliseconds through the logic judgment unit of the information processing module. The photoelectric receiver signal corresponding to the three-phase conductors is checked to see if it is continuously stable above the preset positioning qualification threshold. After the check is passed, the fastening operation in step S6 is executed. If the review fails, return to step S4 to readjust the conductor space orientation.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1) This application adopts a non-contact detection method that combines a photoelectric transmitting module and a photoelectric receiving module. The photoelectric transmitter is fixed at the installation position of the positioning plate, and the photoelectric receiver is fixed at the end of the three-phase conductor. The positioning status is determined by transmitting and receiving the modulated pulse beam. There is no direct mechanical contact between the conductor and the positioning component throughout the process. This detection method eliminates the damage to the conductor surface caused by contact insertion and removal from the source, eliminates potential discharge hazards, and avoids metal particles or debris generated by mechanical friction. It can maintain the high cleanliness of the gas chamber of the gas-insulated metal-enclosed switchgear, meet the stringent cleanliness standards for high-voltage electrical equipment installation, and ensure the insulation performance and safety of the equipment in subsequent operation. 2) The information processing module of this application integrates a signal conditioning unit and a logic judgment unit. The signal conditioning unit can amplify, filter and shape the weak electrical signal of the photoelectric receiver to eliminate environmental noise interference. The logic judgment unit is based on a microprocessor and can independently identify the positioning status of each phase conductor. It can also determine the conductor offset direction based on the trend of signal strength change. At the same time, the integrated delay confirmation logic can avoid false triggering caused by instantaneous signal fluctuations. With the multi-form feedback of the information output module, the operator can complete the positioning adjustment according to the text guidance and acoustic prompts of the three-color LED indicator, digital display screen, and other indicators. There is no need to rely on rich operating experience. This not only lowers the threshold of operation, but also achieves accurate guidance of conductor positioning, ensuring the consistency and high precision of the three-phase conductor positioning, and ensuring the uniform distribution of the electric field inside the equipment. 3) This application incorporates a wire-passing groove, a sliding groove, a slider, and a traction wire harness frame within the positioning plate of the reference positioning module. The slider can be flexibly adjusted along the sliding groove to accommodate connecting cables with different orientations. The springs and limiting posts within the traction wire harness frame can achieve stable clamping and limiting of the cable using elastic force. This design, on the one hand, prevents the cable from tangling or shifting during the positioning operation, ensuring the stability of the electrical connection between modules. On the other hand, it allows for adjustment of the wire harness orientation according to the actual installation scenario, improving the overall installation adaptability of the device. It also prevents core wire damage caused by cable compression, extends the service life of the device's cables, and reduces the probability of line failures during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the positioning device of this application; Figure 2 This is another structural schematic diagram of the positioning device of this application; Figure 3 This is a sectional view of the positioning plate of this application; Figure 4 This is a schematic diagram of the slider structure of this application; Figure 5 This is a schematic diagram of the traction harness frame structure of this application; Figure 6 This is a schematic diagram of the structure of the positioning device of this application when the cable is connected; Figure 7 This is a schematic diagram of the power supply link for this application; Figure 8 This is a schematic diagram of the signal link in this application; Figure 9 This is a flowchart of the positioning method in this application.

[0017] In the picture: 1. Positioning plate; 2. Positioning pin; 3. Positioning nut; 4. GIS cylinder flange; 5. Photoelectric transmitter; 6. Photoelectric receiver; 7. Three-phase conductor; 8. Power supply module; 9. Information processing module; 91. Signal conditioning unit; 92. Logic judgment unit; 10. Information output module; 11. Installation station; 12. Cable tray; 13. Slide rail; 14. Slider; 15. Traction harness frame; 16. Spring; 17. Limiting post; 18. GIS cylinder. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In the description of the invention, it should be noted that the execution order of the steps is not limited by the sequence number. The possible changes in the order of some steps, the synchronous execution of steps, and the split execution of steps are all within the scope of protection of this application.

[0022] Please see Figure 1-9 The present invention provides a technical solution: a GIS three-phase conductor installation and positioning device, including a GIS cylinder 18, a GIS cylinder flange 4, a reference positioning module, a photoelectric transmitting module, a photoelectric receiving module, a power supply module 8, an information processing module 9 and an information output module 10; The GIS cylinder flange 4 is fixed to the end face of the GIS cylinder 18; Three-phase conductors 7 are installed inside the GIS cylinder 18; The reference positioning module includes a positioning plate 1, which is installed on the end face of the GIS cylinder flange 4 by positioning pins 2 and positioning nuts 3. The center of the positioning plate 1 is set with several sets of installation positions 11 according to the three-phase theory. Two sets of wire-passing grooves 12 are opened through the positioning plate 1. The inner walls of both sides of one set of wire-passing grooves 12 are provided with sliding grooves 13, and a slider 14 is movably installed in the wire-passing groove 12. The two ends of the slider 14 are slidably connected to the two sets of sliding grooves 13 respectively. The front end of the slider 14 is fixedly connected to a traction wire harness frame 15. Several sets of springs 16 are fixedly connected at equal intervals on the inner wall of one side of the upper end of the traction wire harness frame 15. The springs 16 are fixedly connected to limit posts 17. The limit posts 17 abut against the inner wall of the other side of the upper end of the traction wire harness frame 15 by the elastic force of the springs 16. The photoelectric emission module includes several sets of photoelectric emitters 5, which are respectively fixed on several sets of installation stations 11; The photoelectric receiving module includes several sets of photoelectric receivers 6, which are fixed to the ends of the three-phase conductor 7. The power supply module 8 is electrically connected to the photoelectric transmitting module, the photoelectric receiving module, the information processing module 9, and the information output module 10. The information processing module 9 is electrically connected to the photoelectric receiving module. The information processing module 9 is adapted to receive and process the electrical signals of the photoelectric receiver 6, determine the positioning status of each phase conductor of the three-phase conductor 7 according to the preset logic, and generate the corresponding judgment result signal. The information output module 10 is connected to the information processing module 9. The information output module 10 is adapted to receive the judgment result signal, and the information output module 10 outputs the positioning status information to the operator in a visual, audible or digital communication manner.

[0023] Specifically, both the positioning plate 1 and the GIS cylinder flange 4 are provided with positioning holes for the positioning pin 2 to pass through. The positioning plate 1 in the reference positioning module is securely installed on the end face of the GIS cylinder flange 4 by the positioning pin 2 and the positioning nut 3. The several sets of installation positions 11 set on the positioning plate 1 according to the three-phase theory can accurately match the theoretical center position of the three-phase conductor 7, providing a precise installation reference for the photoelectric transmitter 5, ensuring that the direction of the emitted beam is consistent with the positioning axis of the three-phase conductor 7, and ensuring positioning accuracy from the source.

[0024] Reference manual attached Figure 1 and instruction manual attached Figure 3-4 Specifically, the wire-passing groove 12, sliding groove 13, slider 14, and traction wire harness frame 15 opened in the positioning plate 1 constitute a dedicated wire harness management structure. The slider 14 can move flexibly along the sliding groove 13 to adapt to different wire harness directions. The limiting post 17 abuts against the upper inner wall of the traction wire harness frame 15 by elastic force, thereby limiting the cable inside the traction wire harness frame 15 and preventing the cable from detaching from the inside of the traction wire harness frame 15. This can prevent the connecting cables between the various modules of the device from getting tangled, falling off, or shifting, ensuring the stability of the electrical connection between the photoelectric transmitter 5 of the photoelectric transmitter module, the photoelectric receiver 6 of the photoelectric receiver module, and the information processing module 9, and reducing the probability of line failure during operation.

[0025] Specifically, the non-contact design of the photoelectric transmitter 5 and the photoelectric receiver 6 avoids direct mechanical contact between the three-phase conductor 7 and the positioning component. This prevents damage to the surface of the three-phase conductor 7 and avoids metal debris contaminating the internal air chamber of the GIS cylinder flange 4. The information processing module 9 processes the electrical signals of the photoelectric receiver 6, and the information output module 10 provides multi-form feedback, allowing the positioning status to be perceived in real time. The overall device achieves accurate positioning reference, orderly wiring management, safe detection method, and timely status feedback, which is significantly better than traditional mechanical positioning fixtures.

[0026] Specifically, this application employs a non-contact detection method that combines a photoelectric transmitting module and a photoelectric receiving module. The positioning status is determined by transmitting and receiving modulated pulse beams. This detection method eliminates damage to the conductor surface caused by contact insertion and removal, thus eliminating potential discharge hazards. At the same time, it avoids metal particles or debris generated by mechanical friction, maintaining a high level of cleanliness inside the gas chamber of the gas-insulated metal-enclosed switchgear. This meets the stringent cleanliness standards for high-voltage electrical equipment installation and ensures the insulation performance and safety of the equipment during subsequent operation.

[0027] Specifically, the information output module 10 of this application is equipped with a data communication interface, which can upload the positioning status data of each phase conductor and the global positioning data to the host computer or programmable logic controller. At the same time, the information processing module can retain the signal change data during the positioning process. This function realizes the traceability and data management of the three-phase conductor positioning operation. The retained data can serve as an important basis for the quality control of the equipment leaving the factory, and can also provide data support for the intelligent operation and maintenance of the subsequent digital substation. It opens up the information link between the three-phase conductor installation link and the equipment life cycle management, and improves the overall digitalization level of electrical equipment installation.

[0028] Reference manual attached Figure 8 The information processing module 9 includes: The signal conditioning unit 91 is adapted to amplify, filter, and shape the weak electrical signal output by the photoelectric receiver 6 in order to eliminate noise interference and improve signal stability. The logic judgment unit 92 is adapted to compare the electrical signal processed by the signal conditioning unit 91 with the preset positioning qualification threshold and execute the judgment logic of the positioning status of the three-phase conductor 7. The global positioning of the three-phase conductor 7 is determined to be completed if and only if the output signals of all photoelectric receivers 6 corresponding to the three-phase conductor 7 continuously exceed the preset positioning qualification threshold.

[0029] Specifically, the signal conditioning unit 91 amplifies, filters, and shapes the weak electrical signal output by the photoelectric receiver 6, effectively eliminating interference factors such as electromagnetic noise and optical noise in the field environment. This significantly improves the stability and signal-to-noise ratio of the electrical signal, avoiding signal distortion caused by weak or mixed interference in the original signal, and providing a high-quality signal foundation for subsequent positioning status judgment. The logic judgment unit 92 accurately compares the electrical signal processed by the signal conditioning unit 91 with the preset positioning qualification threshold, and executes the judgment logic for the positioning status of the three-phase conductor 7. Its rule is that global positioning is determined to be completed only when the output signals of all photoelectric receivers 6 corresponding to the three-phase conductor 7 continuously exceed the preset positioning qualification threshold. This rule can prevent the situation where the overall completion is mistakenly judged when the positioning of a single phase conductor is qualified, ensuring that all three phase conductors 7 reach the accurate positioning state, ensuring the uniformity of the three-phase electric field distribution inside the GIS equipment, improving the positioning reliability of the device from the signal processing and logic judgment levels, and reducing the risk of positioning deviation caused by signal problems or judgment logic omissions.

[0030] The logic judgment unit 92 uses a microprocessor as its core computing component. The microprocessor is configured to execute the following positioning judgment-related calculation and control logic: The positioning status of each phase conductor of the three-phase conductor 7 is independently identified, and the phases that have not met the positioning qualification requirements are clearly determined; Based on the relative change trend of the output signal strength of each photoelectric receiver 6, the spatial offset direction of the unpositioned qualified phase conductor is calculated and determined; The integrated delay confirmation control logic updates the output signal of the logic judgment unit 92 only when the duration of the occlusion state or the qualified positioning state reaches a preset time threshold, thus avoiding false triggering caused by instantaneous signal fluctuations.

[0031] Specifically, the microprocessor can independently identify the positioning status of each phase conductor of the three-phase conductor 7, and can quickly and clearly determine the phase that has not met the positioning qualification requirements. This allows operators to locate the problematic phase without checking each one individually, avoiding the drawbacks of blind adjustment in traditional positioning methods. At the same time, the microprocessor can calculate and determine the spatial offset direction of the unqualified phase conductor based on the relative change trend of the output signal strength of each photodetector 6, providing clear adjustment guidance for operators, reducing the number of repeated adjustments, and shortening the positioning operation time. In addition, its integrated delay confirmation control logic only updates the output signal of the logic judgment unit 92 when the duration of the obstruction state or the qualified positioning state reaches a preset time threshold. This can effectively avoid false triggering caused by instantaneous signal fluctuations, such as signal abnormalities caused by on-site airflow disturbances or brief light obstructions, and will not cause incorrect positioning status feedback, ensuring the accuracy and stability of the positioning judgment results and reducing the dependence on operator experience.

[0032] Information output module 10 includes one or more of the following output formats: The status indicator includes multiple sets of three-color LEDs, each set of LEDs corresponding to one phase of the three-phase conductor 7. Green indicates that the corresponding phase conductor is in the correct position, yellow indicates that the corresponding phase conductor is close to being in the correct position, and red indicates that the corresponding phase conductor has not reached the correct position. An acoustic prompter is configured to emit a preset specific tone prompt signal when all phases in the three-phase conductor 7 have reached the global positioning completion state where positioning is qualified. The digital display screen is suitable for displaying the output signal strength values ​​of the corresponding photodetectors 6 in each of the three-phase conductors 7 in real time, as well as text-guided adjustment information for unpositioned qualified phase conductors; The data communication interface is suitable for uploading the corresponding positioning status data of each of the three-phase conductors 7 and the global positioning status data to the host computer or programmable logic controller (PLC).

[0033] Specifically, multiple sets of three-color LEDs, each corresponding to one phase of the three-phase conductor 7, visually represent the positioning status of the corresponding phase conductor through green, yellow, and red colors. Operators can quickly determine the positioning status of each phase by observing the light colors. The acoustic prompter emits a preset specific tone prompt signal when all phases of the three-phase conductor 7 have reached the globally qualified positioning state, providing an auditory reminder of completion while the operator is focused on the adjustment action, preventing the operator from missing the qualified state due to visual negligence. The digital display screen can display the output signal strength values ​​of the photoelectric receivers 6 corresponding to each of the three-phase conductor 7 in real time, as well as textual guidance adjustment information for the unqualified phase conductors, providing operators with quantitative signal data and precise adjustment directions to help quickly complete precise fine-tuning. The data communication interface can upload the positioning status data of each of the three-phase conductor 7 and the global positioning status data to the host computer or programmable logic controller, realizing the retention and uploading of positioning process data. This can serve as a basis for equipment factory quality control and provide data support for subsequent equipment operation and maintenance, achieving visualization, guidance, and traceability of positioning operations.

[0034] Power supply module 8 is a rechargeable lithium battery pack with integrated power management circuitry, capable of providing multiple voltage levels required by various modules within the device. Specifically, compared to traditional external power supplies, the rechargeable lithium battery pack eliminates the need for on-site power interfaces, improving the device's portability and adaptability to different operating scenarios. It is particularly suitable for environments with complex on-site power supply conditions, such as substations. Furthermore, it can be repeatedly charged, reducing long-term consumable costs. Its integrated power management circuitry provides multiple voltage levels to each module, specifically matching the operating voltage for the photoelectric transmitter 5, photoelectric receiver 6, signal conditioning unit 91 and logic judgment unit 92 within the information processing module 9, and information output module 10. This prevents module damage or malfunction due to voltage mismatch, ensuring stable operation of each module. In addition, the power management circuitry features overvoltage and overcurrent protection, further enhancing power supply safety and extending the lifespan of power supply module 8 and other power-consuming modules, providing reliable power for the continuous and stable operation of the entire device.

[0035] The photoelectric emission module also integrates a pulse modulation circuit. The signal output terminal of the pulse modulation circuit is electrically connected to the driving terminal of the photoelectric transmitter 5. The pulse modulation circuit outputs a modulation driving signal of a specific frequency to the photoelectric transmitter 5 to drive the photoelectric transmitter 5 to emit a modulated pulse beam of the corresponding frequency. The information processing module 9 has a built-in demodulation circuit that matches the pulse modulation circuit. The signal input terminal of the demodulation circuit is electrically connected to the signal output terminal of the signal conditioning unit 91. The demodulation circuit filters out the effective photoelectric signal of a specific frequency from the mixed signal to filter out signal interference caused by ambient stray light.

[0036] Specifically, the pulse modulation circuit of the photoelectric emission module can output a modulation drive signal of a specific frequency to the photoelectric transmitter 5, driving the photoelectric transmitter 5 to emit a modulated pulse beam of the corresponding frequency, giving the emitted light signal a unique frequency identifier. Meanwhile, the demodulation circuit within the information processing module 9 matches the pulse modulation circuit, enabling precise filtering of effective photoelectric signals of a specific frequency from mixed signals. This effectively filters out signal interference from stray light in the environment, such as sunlight and ambient lighting, which are not sourced from the target light source. This coordinated modulation and demodulation design significantly improves the signal-to-noise ratio of the signal received by the photoelectric receiver 6, avoids signal misjudgment caused by ambient light interference, and allows the information processing module 9 to obtain a cleaner positioning signal. This, in turn, improves the accuracy of the logic judgment unit 92 in determining the positioning status of the three-phase conductor 7, ensuring stable and reliable positioning performance even in complex working environments with strong light.

[0037] Reference manual attached Figure 3-5 The width of both ends of the slider 14 is adapted to the width of the groove 13, and the traction harness frame 15 has a "U" shaped structure. Specifically, both ends of the slider 14 are cuboid structures, and both ends of the slider 14 are made of rubber. The anti-slip properties of the rubber material can increase the contact friction between the slider 14 and the groove 13, so that the slider 14 can maintain a stable posture after being adjusted to the target position, and is not easy to be displaced due to device vibration or external force. This ensures the fixed position of the traction harness frame 15 and ensures the stability of the cable limit state. The U-shaped structure of the traction harness frame 15 can form a groove space adapted to the placement of cables, allowing the connecting cables of the photoelectric transmitting module and the photoelectric receiving module to be stably placed inside it. With the limiting post 17 connected by the spring 16, the cable can be limited, preventing the cable from falling out of the traction harness frame 15. At the same time, the U-shaped structure can accommodate multiple cables, improving the management of the harness. The overall structural design makes the cable management operation more convenient and efficient, and further ensures the stability of the electrical connection between the various modules of the device.

[0038] According to another aspect of this application, a method for installing and positioning three-phase conductors in a GIS is also provided, comprising the following steps: S1) Place the positioning plate 1 against the end face of the GIS cylinder flange 4, aligning the installation position 11 of the positioning plate 1 with the theoretical center position of the three-phase conductor 7 inside the GIS cylinder 18. Then, insert the positioning pin 2 into the corresponding positioning holes of the positioning plate 1 and the GIS cylinder flange 4, and tighten the positioning nut 3 to complete the fixing of the reference positioning module. At the same time, adjust the slider 14 in the wire-passing groove 12 along the groove 13 to the position that matches the wire harness direction, and pre-fix the initial posture of the traction wire harness frame 15. S2) The photoelectric receiver 6 is fixed to the end of the three-phase conductor 7, ensuring that the receiving end of the photoelectric receiver 6 is directly facing the photoelectric transmitter 5 at the corresponding installation position 11 on the positioning plate 1; the connecting cables of the photoelectric transmitter module and the photoelectric receiver module are threaded into the wire groove 12 of the positioning plate 1 and placed inside the traction wire harness frame 15. The spring force of the spring 16 drives the limiting post 17 to abut against the inner wall of the traction wire harness frame 15 to limit the wire harness and complete the wire harness arrangement. Then, the electrical connection between the power supply module 8 and the photoelectric transmitter module, the photoelectric receiver module, the information processing module 9 and the information output module 10 is completed. S3) Turn on the power switch of the power supply module 8. After each module completes the power-on self-test, confirm that the pulse modulation circuit of the photoelectric transmitter module is started. The photoelectric transmitter 5 stably emits a modulated pulse beam of a specific frequency, and the information output module 10 enters the standby display state. S4) The operator uses the hoisting equipment to adjust the spatial attitude of the three-phase conductor 7, and simultaneously observes the positioning status feedback of the information output module 10, including the status of the three-color LED indicator lights corresponding to each phase conductor, the signal strength value of the digital display screen and the text guidance information. S5) Guided by the information output module 10, the phase conductors that have not reached the qualified positioning state are precisely fine-tuned until the logic judgment unit 92 of the information processing module 9 determines that the output signals of all photoelectric receivers 6 corresponding to the three-phase conductors 7 have continuously exceeded the preset qualified positioning threshold, and the information output module 10 issues an acoustic prompt and visual signal indicating that global positioning is completed. S6) Maintain the positioning posture of the three-phase conductor 7, perform a fastening operation on the three-phase conductor 7 and complete the insulation protection treatment, then release the limiting post 17 from the cable limit constraint, retract the connecting cable in the cable tray 12, and remove the photoelectric receiver 6, positioning plate 1 and other positioning device components in sequence to complete the overall positioning operation.

[0039] In step S5, after the information output module 10 sends a global positioning completion signal, a positioning verification operation can also be performed: Keeping the three-phase conductor 7 in the same position, the delay confirmation time is extended to 500 milliseconds to 1000 milliseconds through the logic judgment unit 92 of the information processing module 9 to verify whether the signal of the photoelectric receiver 6 corresponding to the three-phase conductor 7 is continuously stable above the preset positioning qualification threshold. After the verification is passed, the fastening operation of step S6 is executed. If the review fails, return to step S4 to readjust the conductor space orientation.

[0040] Specifically, after the information output module 10 sends a global positioning completion signal, the logic judgment unit 92 of the information processing module 9 extends the delay confirmation time to 500 to 1000 milliseconds to perform a secondary verification of the signal of the photoelectric receiver 6 corresponding to the three-phase conductor 7. This effectively checks whether the three-phase conductor 7 has a false positioning qualification, such as a momentary signal compliance caused by airflow disturbance or brief obstruction. If the verification passes, the tightening operation in step S6 is then performed to ensure that the positioning state of the three-phase conductor 7 has sufficient stability, avoiding conductor displacement during or after tightening, and ensuring that the installed three-phase conductor 7 is always in a precise positioning position. If the verification fails, the process returns to step S4 for readjustment, which can promptly correct positioning deviations. This adds a layer of protection for positioning quality at the process level, significantly improving the overall quality of GIS three-phase conductor installation and reducing the risk of insulation or discharge caused by positioning deviations during later operation of the equipment.

[0041] Example 1: Installation and positioning of three-phase conductors in a conventional 110kV GIS equipment This embodiment is applied to the on-site installation and positioning of three-phase conductors in a conventional 110kV gas-insulated metal-enclosed switchgear. The positioning plate 1 is made of 6061 aluminum alloy with a thickness of 10mm. It is fixed to the end face of the GIS cylinder flange 4 by two sets of 12mm diameter positioning pins 2 and M12 positioning nuts 3. The center of the positioning plate 1 is aligned with the 110kV... The theoretical spacing of the GIS three-phase conductor 7 is set with three sets of installation stations 11. The three sets of installation stations 11 are distributed in an equilateral triangle with a spacing of 280mm. Two sets of 20mm wide wire grooves 12 are opened through the positioning plate 1. The inner walls of the wire grooves 12 on both sides are opened with 3mm wide sliding grooves 13. The sliders 14 configured in the wire grooves 12 are made of wear-resistant rubber material with a thickness of 3mm at both ends. The width of the sliders 14 is adapted to the width of the sliding grooves 13 and can slide flexibly along the sliding grooves 13. The front end of the sliders 14 is fixed with a U-shaped traction wire harness frame 15. Eight sets of springs 16 are equidistantly arranged on the inner wall of one side of the upper end of the traction wire harness frame 15. The ends of the springs 16 are connected to the limiting posts 17. The limiting posts 17 are abutted against the inner wall of the other side of the upper end of the traction wire harness frame 15 by the elastic force of the springs 16.

[0042] The three sets of photoelectric transmitters 5 are infrared lasers with a wavelength of 940nm and a power of 5mW. They are fixed at the three installation positions 11 respectively, with the transmitting end facing the axis of the three-phase conductor 7. The three sets of photoelectric receivers 6 are photodiode assemblies with preamplifiers. They are fixed to the center of the end of the three-phase conductor 7 made of copper busbar with a cross-section of 60×10mm by insulating clamps, with the receiving end facing the corresponding photoelectric transmitter 5.

[0043] The power supply module 8 is a 12V / 5Ah rechargeable lithium battery pack with integrated power management circuitry. It can output two voltage levels, 5V and 3.3V, to power the photoelectric transmitter 5, photoelectric receiver 6, information processing module 9, and information output module 10, respectively.

[0044] The information processing module 9 has a built-in signal conditioning unit 91 and a logic judgment unit 92. The signal conditioning unit 91 uses an LM358 operational amplifier to build an amplification and filtering circuit, which can amplify the weak electrical signal output by the photoelectric receiver 6 by 20 times and filter out 50Hz power frequency interference. The logic judgment unit 92 uses an STM32F103 microprocessor as the core computing component. Its preset positioning qualification threshold is 50mV and the delay confirmation time is 200ms. It can independently identify the positioning status of each phase conductor and determine the offset direction based on the signal strength change. At the same time, the photoelectric transmitting module integrates a pulse modulation circuit based on a 10kHz crystal oscillator. The information processing module 9 has a built-in CD4046 phase-locked loop demodulation circuit, which can effectively filter out environmental stray light interference.

[0045] The information output module 10 includes three sets of tri-color LEDs, an acoustic prompter, a 1.8-inch digital display screen, and an RS485 data communication interface. The three-color LEDs (green, yellow, and red) respectively represent the positioning as qualified, close to qualified, or unqualified. The acoustic prompter emits a 1kHz prompt tone when global positioning is completed. The digital display screen can display the signal strength values ​​of each phase photoelectric receiver 6 in real time. The RS485 interface can upload the positioning data to the substation PLC system.

[0046] The positioning method in this embodiment performs the following steps: S1) Place the positioning plate 1 against the end face of the GIS cylinder flange 4, align the installation position 11 with the theoretical center of the three-phase conductor 7, insert the positioning pin 2 and tighten the positioning nut 3 to complete the fixation. At the same time, adjust the slider 14 along the slide groove 13 to the appropriate position for the wire harness and pre-fix the traction wire harness frame 15. S2) Fix the photoelectric receiver 6 to the end of the three-phase conductor 7, thread the connecting cables of each module through the cable tray 12 and place them inside the traction harness frame 15. Rely on the spring 16 to drive the limiting post 17 to abut against the inner wall of the traction harness frame 15 to complete the limiting and arrangement of the cables. Then complete the electrical connection between the power supply module 8 and each module. S3) Turn on the power supply module 8. After each module completes its power-on self-test, confirm that the photoelectric transmitter 5 stably emits a 10kHz modulated pulse beam, and the information output module 10 enters the standby state. S4) The operator adjusts the spatial posture of the three-phase conductor 7 using the hoisting equipment, and simultaneously observes the values ​​and text instructions on the LED status digital display screen of the information output module 10; S5) According to the instructions, the unqualified phase conductor is precisely fine-tuned until the logic judgment unit 92 determines that the signals of all photoelectric receivers 6 have continuously exceeded 50mV and the information output module 10 issues a global positioning completion prompt. Then, the delay confirmation time is extended to 800ms to perform positioning verification. After the verification is passed, proceed to the next step. S6) Maintain the posture of the three-phase conductor 7 and complete the fastening and insulation protection. Release the limiting post 17 from the cable limit constraint. After retrieving the cable, remove the photoelectric receiver 6, positioning plate 1 and other components in sequence to complete the overall positioning operation.

[0047] Example 2: Installation and positioning of three-phase conductors for 330kV GIS equipment at high altitude This embodiment is applied to the installation and positioning of three-phase conductors of 330kV GIS equipment at an altitude of 3500m. This scenario has the environmental characteristics of low temperature and strong ultraviolet radiation. The overall structure of the device is enhanced with improved environmental adaptability based on Embodiment 1.

[0048] The GIS cylindrical flange 4 is a PN35 DN500 cast steel flange. The positioning plate 1 is made of 15mm thick rust-proof aluminum alloy. It is fixed to the flange end face by three sets of 16mm diameter positioning pins 2 and M16 positioning nuts 3. The three sets of installation positions 11 in the center of the positioning plate 1 are distributed in an equilateral triangle with a spacing of 450mm, which is compatible with the theoretical spacing of 330kV GIS three-phase conductors 7. The wire groove 12 is 30mm wide, the slide groove 13 is 10mm wide, and the two ends of the slider 14 are made of low-temperature resistant nitrile rubber.

[0049] The photoelectric transmitter 5 is an infrared laser with UV-resistant encapsulation, a wavelength of 940nm and a power of 8mW, which can resist interference from strong ultraviolet radiation at high altitudes. The photoelectric receiver 6 is equipped with an anti-UV filter to improve the anti-interference capability of signal reception.

[0050] Power supply module 8 is a 12V / 8Ah low-temperature rechargeable lithium battery pack. Its power management circuit is equipped with a low-temperature protection module, which can supply power normally in an environment of -20℃ and can output three voltage levels: 5V, 3.3V, and 12V.

[0051] The signal conditioning unit 91 of the information processing module 9 uses a low-temperature drift operational amplifier to build the circuit, ensuring the signal processing accuracy under high-altitude temperature difference environment. The STM32F103 microprocessor of the logic judgment unit 92 has a preset positioning qualification threshold of 60mV and a delay confirmation time of 300ms. The crystal oscillator frequency of its pulse modulation circuit is 15kHz, and the phase-locked loop bandwidth of the demodulation circuit is adapted to this frequency, which can effectively filter out the interference of complex electromagnetic environment at high altitude.

[0052] The digital display screen of the information output module 10 is a low-temperature, high-brightness screen, which can clearly display data in low-light environments. Its RS485 interface supports long-distance data transmission and is suitable for the long-distance cabling needs of high-altitude substations.

[0053] The positioning method in this embodiment optimizes the environment adaptation operation based on the steps in Embodiment 1: S1) When fixing the positioning plate 1, additional sealing gaskets are used to seal the mating surfaces of the positioning plate 1 and the GIS cylinder flange 4 to prevent high-altitude sand and dust from entering. S2) When organizing cables, use low-temperature resistant silicone cables and further limit them with limiting posts 17 to prevent the cables from hardening and falling off due to low temperature. S3) During the power-on self-test phase, module performance testing under low-temperature conditions is added to confirm the working stability of each module under low-temperature conditions; S4) When adjusting the three-phase conductor 7, based on the signal strength value and text guidance on the digital display screen, and combined with the beam attenuation characteristics caused by the thin air at high altitudes, the judgment range of signal strength is appropriately widened. S5) During the positioning verification, the delay confirmation time is extended to 1000ms to ensure the positioning stability of the three-phase conductor 7 in the high-altitude gust wind environment; S6) During the fastening operation, anti-loosening nuts are used to fix the three-phase conductor 7 to adapt to the structural deformation caused by the large temperature difference between day and night at high altitudes. After the device is removed, the positioning plate 1 and the slider 14 are cleaned of sand and dust to ensure the reusability of the device.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A GIS three-phase conductor installation positioning device, characterized by, It comprises a GIS cylinder (18), a GIS cylinder flange (4), a reference positioning module, an optical-electric emission module, an optical-electric receiving module, a power supply module (8), an information processing module (9) and an information output module (10). The GIS cylinder flange (4) is fixed to the end face of the GIS cylinder (18). The GIS cylinder (18) is internally provided with three-phase conductors (7). The reference positioning module comprises a positioning plate (1), the center of which is provided with a plurality of installation stations (11) according to three-phase theory, and the positioning plate (1) is connected to the end face of the GIS cylinder flange (4). The optical-electric emission module comprises a plurality of optical-electric emitters (5), which are respectively fixed to the installation stations (11). The optical-electric receiving module comprises a plurality of optical-electric receivers (6), which are fixed to the end of the three-phase conductors (7). The power supply module (8) is electrically connected with the optical-electric emission module, the optical-electric receiving module, the information processing module (9) and the information output module (10). The information processing module (9) is electrically connected with the optical-electric receiving module, and is adapted to receive and process the electric signal of the optical-electric receiver (6), determine the positioning state of each phase conductor of the three-phase conductor (7) according to preset logic, and generate a corresponding judgment result signal. The information output module (10) is connected with the information processing module (9), and is adapted to receive the judgment result signal and output the positioning state information to the operator in a visual, audible or digital communication manner.

2. The GIS three-phase conductor installation positioning device of claim 1, wherein, The positioning plate (1) is installed on the end face of the GIS cylinder flange (4) through a positioning pin (2) and a positioning nut (3), two groups of threading grooves (12) are formed in the positioning plate (1), sliding grooves (13) are formed in the inner walls of the two sides of the threading grooves (12), and sliding blocks (14) are movably arranged in the threading grooves (12), the two ends of the sliding blocks (14) are respectively slidably connected in the two groups of sliding grooves (13), and the front end of the sliding block (14) is fixedly connected with a traction harness frame (15).

3. The GIS three-phase conductor installation positioning device of claim 2, wherein, The upper end of the traction harness frame (15) is fixedly connected with a plurality of springs (16) on one side of the inner wall, the springs (16) are fixedly connected with limiting columns (17), and the limiting columns (17) abut against the other side of the upper end of the inner wall of the traction harness frame (15) through the elastic force of the springs (16).

4. The GIS three-phase conductor installation positioning apparatus and method of claim 2, wherein, The width of the two ends of the sliding block (14) is adapted to the width of the sliding groove (13), and the traction harness frame (15) has a "U" shape structure.

5. The GIS three-phase conductor installation positioning device of claim 1, wherein, The information processing module (9) comprises: a signal conditioning unit (91) adapted to amplify, filter and shape the weak electric signal output by the optical-electric receiver (6); A logic judging unit (92) is adapted to compare the electrical signal processed by the signal conditioning unit (91) with a preset positioning qualified threshold, and execute the judging logic of the positioning state of the three-phase conductor (7). When and only when all the output signals of the photoelectric receivers (6) corresponding to the three-phase conductor (7) continuously exceed the preset positioning qualified threshold, it is determined that the global positioning of the three-phase conductor (7) is completed.

6. The GIS three-phase conductor installation positioning apparatus of claim 1, wherein, The logic judging unit (92) uses a microprocessor as the core operation component, and the microprocessor is configured to execute the following positioning judgment related operations and control logic: The positioning state of each phase conductor of the three-phase conductor (7) is independently identified, and the phase type that does not meet the positioning qualified requirement is determined; Based on the relative change trend of the output signal strength of each photoelectric receiver (6), the spatial offset direction of the phase conductor that does not meet the positioning qualified requirement is calculated and determined; The delay confirmation control logic is integrated, and only when the shielding state or the positioning qualified state lasts for a preset time threshold, the output signal of the logic judging unit (92) is updated, so as to avoid the false triggering caused by the instantaneous signal fluctuation.

7. The GIS three-phase conductor installation positioning device of claim 1, wherein, The information output module (10) includes one or more of the following output forms: A state indicating lamp including a plurality of three-color LEDs, each group of LEDs corresponding to one phase of the three-phase conductor (7), wherein green represents that the corresponding phase conductor meets the positioning qualified requirement, yellow represents that the corresponding phase conductor approaches the positioning qualified requirement, and red represents that the corresponding phase conductor does not meet the positioning qualified requirement; An acoustic prompter configured to emit a preset specific tone prompt signal when the global positioning of each phase of the three-phase conductor (7) is completed; A digital display screen adapted to display the output signal strength value of the photoelectric receiver (6) corresponding to each phase of the three-phase conductor (7) in real time, and the text guidance adjustment information for the phase conductor that does not meet the positioning qualified requirement; A data communication interface adapted to upload the positioning state data and the global positioning state data of each phase of the three-phase conductor (7) to an upper computer or a programmable logic controller (PLC).

8. The GIS three-phase conductor installation positioning apparatus of claim 1, wherein, The photoelectric emitter module further integrates a pulse modulation circuit, a signal output end of the pulse modulation circuit is electrically connected with a driving end of the photoelectric emitter (5), the pulse modulation circuit outputs a modulation driving signal of a specific frequency to the photoelectric emitter (5) to drive the photoelectric emitter (5) to emit a modulation pulse light beam of a corresponding frequency. The information processing module (9) internally integrates a demodulation circuit matched with the pulse modulation circuit, a signal input end of the demodulation circuit is electrically connected with a signal output end of the signal conditioning unit (91), and the demodulation circuit filters out the effective photoelectric signal of a specific frequency from the mixed signal to filter out the signal interference caused by the environmental stray light.

9. A GIS three-phase conductor installation positioning method based on the three-phase conductor installation positioning device according to any one of claims 1 to 8, characterized in that, The method comprises the following steps: S1) Align the positioning plate (1) with the end face of the GIS cylinder flange (4), align the installation station (11) of the positioning plate (1) with the theoretical center position of the three-phase conductor (7) in the GIS cylinder (18), then insert the positioning pin (2) into the corresponding positioning hole of the positioning plate (1) and the GIS cylinder flange (4), tighten the positioning nut (3) to complete the fixation of the reference positioning module, and at the same time, adjust the slider (14) in the threading groove (12) to the position that matches the wire harness direction, and pre-fix the initial posture of the traction wire harness frame (15); S2) The photoelectric receiver (6) is fixed to the end of the three-phase conductor (7), and the receiving end of the photoelectric receiver (6) is directly opposite the photoelectric emitter (5) in the corresponding installation station (11) on the positioning plate (1); the connection cable of the photoelectric emission module and the photoelectric receiving module is inserted into the threading groove (12) of the positioning plate (1) and placed inside the traction wire harness frame (15), and the limiting column (17) is driven by the elastic force of the spring (16) to abut against the inner wall of the traction wire harness frame (15), and after the wire harness is limited, the wire harness is arranged, and then the power supply module (8) is electrically connected with the photoelectric emission module, the photoelectric receiving module, the information processing module (9) and the information output module (10); S3) Turn on the power switch of the power supply module (8), and after the modules complete the power-on self-test, confirm that the pulse modulation circuit of the photoelectric emission module is started, the photoelectric emitter (5) stably emits a specific frequency of modulated pulse light beam, and the information output module (10) enters standby display state; S4) The operator drives the three-phase conductor (7) to adjust the spatial posture by hoisting equipment, and synchronously observes the positioning state feedback of the information output module (10), including the state of the three-color LED indicator light corresponding to each phase conductor, the signal strength value and the text guidance information of the digital display screen; S5) According to the guidance of the information output module (10), the phase conductor that does not reach the positioning qualified state is accurately fine-tuned until the logic judgment unit (92) of the information processing module (9) determines that the output signals of all photoelectric receivers (6) corresponding to the three-phase conductor (7) continuously exceed the preset positioning qualified threshold, and the information output module (10) issues an acoustic prompt and a visual signal that the global positioning is completed; S6) Keep the positioning posture of the three-phase conductor (7), execute the fastening operation on the three-phase conductor (7) and complete the insulation protection treatment, then release the limiting constraint of the limiting column (17) on the cable, withdraw the connection cable in the threading groove (12), and sequentially remove the positioning device components such as the photoelectric receiver (6) and the positioning plate (1), to complete the overall positioning operation.

10. The method of positioning a GIS three-phase conductor installation of claim 9, wherein, In step S5, after the information output module (10) issues the global positioning completion signal, the positioning review operation can also be performed: Keep the posture of the three-phase conductor (7) unchanged, extend the delay confirmation time of the logic judgment unit (92) of the information processing module (9) to 500 milliseconds to 1000 milliseconds, review whether the signals of the photoelectric receivers (6) corresponding to the three-phase conductor (7) are continuously and stably above the preset positioning qualified threshold, and after the review is passed, execute the fastening operation of step S6; If the review is not passed, the process returns to step S4 to readjust the conductor spatial attitude.

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