Portable high-voltage electrical equipment partial discharge positioning device

Abstract

The invention relates to the technical field of high-voltage electrical equipment detection, and discloses a portable high-voltage electrical equipment partial discharge positioning device which comprises a base, a detector is movably installed on the inner side of the base, and supporting seats attached to the left side and the right side of the detector respectively are fixedly installed on the left side and the right side of the inner wall of the base. Two bottom frames are fixedly mounted at the bottom of the base, a box door is hinged to the front side of the base, a detection module extending to the top of the base is arranged at the top of the detector, and a protective portable mechanism extending to the top of the base and located on the rear side of the detection module is arranged between the left side and the right side of the base; according to the portable high-voltage electrical equipment partial discharge positioning device, the detector and the detection module are arranged, so that the purpose of providing an accurate spatial position is achieved, and the protective portable mechanism and the fixing mechanism are arranged, so that the purpose of being convenient to carry is achieved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical equipment testing technology, specifically a portable high-voltage electrical equipment partial discharge locating device. Background Technology

[0002] Partial discharge is prone to occur in high-voltage electrical equipment during long-term operation, which is a major cause of insulation failure. Existing technical solutions have the following drawbacks: partial discharge detection methods, such as electrical location methods, although highly accurate, usually require complex synchronization systems and background software. The equipment is bulky and inconvenient for rapid on-site inspection. Moreover, most portable detectors on the market can only qualitatively determine the presence and intensity of partial discharge, and cannot provide precise spatial location information. Operators need to rely on experience to conduct large-scale inspections on large equipment, which is inefficient and inaccurate. Therefore, a portable partial discharge location device for high-voltage electrical equipment is proposed to solve the above-mentioned problems. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a portable partial discharge positioning device for high-voltage electrical equipment, which has the advantages of being easy to carry and providing accurate spatial positioning, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned purpose of portability and precise spatial positioning, the present invention provides the following technical solution: a portable partial discharge positioning device for high-voltage electrical equipment, comprising a base, a detector movably mounted on the inner side of the base, support seats fixedly mounted on the left and right sides of the inner wall of the base respectively fitting against the left and right sides of the detector, two base frames fixedly mounted on the bottom of the base, a door hinged to the front of the base, a detection module extending to the top of the base provided on the top of the detector, a protective portable mechanism extending to the top of the base and located behind the detection module provided between the left and right sides of the base, and a fixing mechanism provided on the rear side of the base;

[0007] The detection module includes a rotary drive base, a robotic arm, a detection host, a shock-absorbing gimbal, and a partial discharge sensor. The rotary drive base is fixed to the top of the detector and extends above the base. One end of the robotic arm is rotatably connected to the rotary drive base. The detection host is mounted on the other end of the robotic arm. One end of the shock-absorbing gimbal is fixedly connected to the bottom of the detection host. The partial discharge sensor is fixedly connected to the other end of the shock-absorbing gimbal.

[0008] Preferably, the protective portable mechanism includes a sliding connecting part, a protective shell, a limiting slide rail, a horizontal connecting rod, a vertical support frame, a handle, a guide frame, a sliding block, an adjusting rod, and a carrying handle. Sliding connecting parts are fixedly installed on both the left and right sides of the base. The protective shell is slidably installed on the top of the two sliding connecting parts and located on the outside of the base. Limiting slide rails are fixedly installed on both the left and right sides of the inner wall of the base. One end of the horizontal connecting rod is fixedly connected to the rear side of the inner wall of the protective shell, and the other end extends to the inner side of the base and is slidably connected to the inner side of the limiting slide rail. A vertical support frame extending to its inner side and fitting against the top of the base is slidably installed on the top of the protective shell. The handle is fixedly installed on the top of the vertical support frame. Two guide frames are fixedly installed on both the left and right sides of the inner wall of the protective shell. A sliding block extending to its bottom is slidably installed between the inner sides of the two guide frames. One end of the adjusting rod is fixedly connected to the inner side of the sliding block and extends to the top of the protective shell. A carrying handle is fixedly installed between the tops of the two adjusting rods.

[0009] Preferably, the fixing mechanism includes an adjusting chamber, a limiting hole, a snap-fit ​​block, a U-shaped plate, a return spring, a positioning block, a connecting plate, and a sliding sleeve. The adjusting chamber is fixedly installed on the rear side of the base. The limiting hole is opened on the left and right sides of the inner wall of the adjusting chamber. The snap-fit ​​block is slidably connected to the limiting hole. A U-shaped plate that is slidably connected to the inner side of the adjusting chamber is fixedly installed between the two snap-fit ​​blocks. A return spring that is fixedly connected to the inner bottom wall of the adjusting chamber is fixedly installed on the inner top wall of the U-shaped plate. A positioning block is fixedly installed on the top of the U-shaped plate. A connecting plate that extends to the rear side of the adjusting chamber is fixedly installed on the inner top wall of the U-shaped plate. A sliding sleeve is fixedly installed on the rear side of the connecting plate.

[0010] Preferably, the rotary drive base adopts a worm gear rotation structure driven by a servo motor, and the robotic arm is a multi-degree-of-freedom articulated robotic arm with angle sensors installed at the joints.

[0011] Preferably, the protective housing is made of insulating and flame-retardant ABS engineering plastic, with an antistatic foam layer pasted on the inner sidewall. The two sliding connecting plates are symmetrically distributed from left to right. The top of the protective housing has a strip groove adapted to the handle. The inner bottom wall and the front side of the inner wall of the protective housing are both designed with openings. The rear side of the inner wall of the base has a through hole adapted to the transverse connecting rod. The outer side of the handle is wrapped with a sponge sleeve.

[0012] Preferably, when the protective housing is in the closed state, the positioning block is attached to its outer side, the top rear end of the positioning block is inclined, the front side of the positioning block is provided with a slot adapted to the protective housing, the inner top wall of the slot is open, and the rear inner wall of the adjustment chamber is provided with a rectangular hole adapted to the moving trajectory of the connecting plate.

[0013] Preferably, the return spring is a cylindrical helical compression spring made of stainless steel, and there are two return springs distributed symmetrically on the left and right. The inner side of the support base is provided with an anti-slip rubber pad, and the surface of the anti-slip rubber pad is provided with anti-slip texture. The support base has a U-shaped design.

[0014] Preferably, there are two base frames that are symmetrically distributed from left to right, the inner wall of the base has an opening on the front side, and a U-shaped rod is fixedly installed on the front side of the box door.

[0015] Preferably, the surface of the detection host is provided with a touch screen and physical shortcut keys, including a power key, a positioning start key, a sensor switching key and a data export key, and the front of the detector is provided with a touch screen.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a portable partial discharge locating device for high-voltage electrical equipment, which has the following beneficial effects:

[0018] 1. This portable partial discharge locating device for high-voltage electrical equipment, through the installation of a detector and a detection module, uses a rotary drive base to drive a robotic arm to rotate horizontally, adjusting the detection direction. The robotic arm features a multi-degree-of-freedom hinged design, with angle sensors at the joints to precisely control the spatial position of the detection host. By moving the partial discharge sensor to different positions with the robotic arm, the time difference of the partial discharge signal arriving at each position is recorded. Combining the known sensor position and time difference data, the spatial coordinates of the discharge source are calculated using triangulation. The angle sensors at the robotic arm joints provide sensor orientation information to help correct positioning errors. A high-frequency current sensor (HFCT) or ultra-high frequency sensor (UHF) is used to capture electromagnetic wave signals generated by partial discharge inside the high-voltage electrical equipment through non-contact or contact methods. The partial discharge sensor transmits the detected signal to the detection host and detector. A vibration-damping pan-tilt unit reduces mechanical vibration interference. The detection host filters, amplifies, and digitizes the signal, using a specific spatial geometry algorithm to calculate the three-dimensional spatial vector of the partial discharge source relative to the device body, and extracts the characteristic parameters of the partial discharge, transmitting them to the detector. The touchscreen displays the data, guiding the operator to the fault point, thus achieving the goal of providing precise spatial location.

[0019] 2. This portable partial discharge positioning device for high-voltage electrical equipment, through the setting of a protective and portable mechanism and a fixing mechanism, uses insulating and flame-retardant ABS engineering plastic with an inner anti-static foam layer to prevent external electromagnetic interference and mechanical impact. The sliding design allows for quick opening and closing, protecting the detection module from dust and moisture. The handle can be stored in the design of the adjustment rod and sliding block. When the handle is pulled out, it is convenient to carry or move the device with one hand. When the connecting plate is pressed, the U-shaped plate compresses the return spring, the locking block disengages from the limit hole, and the protective shell is released. After the connecting plate is released, the return spring pushes the U-shaped plate to reset. After the protective shell resets forward, the positioning block fixes the protective shell again. After the protective shell is successfully reset, the entire device can be easily carried, achieving the purpose of easy portability. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0021] Figure 2 This is a perspective cross-sectional view of a portion of the structure of the present invention;

[0022] Figure 3 This is a partial perspective view of the detection module of the present invention;

[0023] Figure 4 This is a rear perspective view of the protective portable mechanism and the fixing mechanism of the present invention;

[0024] Figure 5 This is a left-side sectional perspective view of the protective portable mechanism of the present invention;

[0025] Figure 6 This is a partial sectional perspective view of the protective portable mechanism of the present invention;

[0026] Figure 7 This is a rear perspective view of the portable protective mechanism of the present invention when it is closed;

[0027] Figure 8 This is a rear sectional perspective view of the fixing mechanism of the present invention.

[0028] In the diagram: 1. Base, 2. Detector, 3. Detection module, 31. Rotary drive seat, 32. Robotic arm, 33. Detection body, 34. Shock-absorbing gimbal, 35. Partial discharge sensor, 4. Support seat, 5. Protective and portable mechanism, 501. Sliding connection, 502. Protective shell, 503. Limiting slide rail, 504. Horizontal connecting rod, 505. Vertical support frame, 506. Handle, 507. Guide frame, 508. Sliding block, 509. Adjusting rod, 510. Handle, 6. Fixing mechanism, 61. Adjusting compartment, 62. Limiting hole, 63. Snap-fit ​​block, 64. U-shaped plate, 65. Return spring, 66. Positioning block, 67. Connecting plate, 68. Sliding sleeve, 7. Base frame, 8. Box door. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-8 This invention provides a technical solution: a portable partial discharge positioning device for high-voltage electrical equipment, comprising a base 1, a detector 2 movably mounted on the inner side of the base 1, and support seats 4 fixedly mounted on the left and right sides of the inner wall of the base 1 respectively, which are close to the left and right sides of the detector 2 to prevent the detector from sliding or vibrating and to buffer mechanical impact. Two base frames 7 are fixedly mounted on the bottom of the base 1 to provide stable support and prevent the device from tipping over during the detection process. The two base frames 7 are symmetrically distributed to adapt to uneven ground environments. A door 8 is hinged to the front of the base 1, which protects the touch screen on the front of the detector 2 when closed and facilitates operation and data viewing when open. A U-shaped rod is fixed on the front to facilitate opening and closing the door with one hand. A detection module 3 extending to the top of the base 1 is provided on the top of the detector 2. A protective portable mechanism 5 extending to the top of the base 1 and located behind the detection module 3 is provided between the left and right sides of the base 1. A fixing mechanism 6 is provided on the rear of the base 1.

[0031] There are two base frames 7, which are symmetrically distributed on the left and right. The front side of the inner wall of the base 1 is designed with an opening to facilitate the installation and maintenance of the detector 2. A U-shaped rod is fixedly installed on the front side of the box door 8.

[0032] The detection module 3 includes a rotary drive base 31, a robotic arm 32, a detection host 33, a shock-absorbing gimbal 34, and a partial discharge sensor 35. The rotary drive base 31 is fixed to the top of the detector 2 and extends above the base 1. It adopts a worm gear structure driven by a servo motor to realize the horizontal rotation (0-360°) of the robotic arm 32 and adjust the detection direction. The worm gear transmission has self-locking properties to ensure that the robotic arm 32 is stable and does not deviate after positioning. One end of the robotic arm 32 is rotatably connected to the rotary drive base 31. It has a multi-degree-of-freedom hinged design. The spatial position (such as up and down, forward and backward, left and right movement) of the detection host 33 is precisely controlled by the angle sensor at the joint, which can adapt to the detection needs of high voltage equipment at different heights and angles and realize partial discharge detection. The discharge signal is acquired at multiple points. The detection host 33 is mounted on the other end of the robotic arm 32. It integrates signal processing and positioning algorithms, receives the signal from the partial discharge sensor 35, calculates the location of the discharge source, and displays the results in real time through a touch screen. The visual operation interface supports parameter setting, data viewing, and report generation. One end of the shock-absorbing gimbal 34 is fixedly connected to the bottom of the detection host 33. The elastic damping structure reduces the impact of mechanical vibration on the sensor, improves signal stability, and maintains sensor accuracy under mobile detection or complex working conditions. The other end of the partial discharge sensor 35 is fixedly connected to the shock-absorbing gimbal 34. It captures the electromagnetic wave or current pulse signal generated by partial discharge and transmits the signal to the detection host 33 for further analysis.

[0033] The rotary drive base 31 adopts a worm gear rotation structure driven by a servo motor. The robotic arm 32 is a multi-degree-of-freedom articulated robotic arm with angle sensors installed at the joints. The surface of the detection host 33 is equipped with a touch screen and physical shortcut keys, including a power button, a positioning start button, a sensor switching button, and a data export button. A touch screen is located on the front of the detector 2.

[0034] The protective portable mechanism 5 includes a sliding connection part 501, a protective shell 502, a limiting slide rail 503, a horizontal connecting rod 504, a vertical support frame 505, a handle 506, a guide frame 507, a sliding block 508, an adjusting rod 509, and a handle 510. Sliding connection parts 501 are fixedly installed on both the left and right sides of the base 1, serving as sliding guide rails for the protective shell 502 to ensure that the protective shell 502 does not deviate when vertically raising and lowering. The protective shell 502 is slidably installed on the top of the two sliding connection parts 501 and located on the outside of the base 1. Limiting slide rails 503 are fixedly installed on both the left and right sides of the inner wall of the base 1. One end of the horizontal connecting rod 504 is fixedly connected to the rear side of the inner wall of the protective shell 502, and the other end extends to the inner side of the base 1. It is slidably connected to the inner side of the limiting slide rail 503 to limit the lifting range of the protective housing 502 and prevent derailment. A vertical support frame 505 extending to its inner side and fitting against the top of the base 1 is slidably installed on the top of the protective housing 502 to provide a seal when the protective housing 502 is closed. The handle 506 is fixedly installed on the top of the vertical support frame 505. Two guide frames 507 are fixedly installed on both the left and right sides of the inner wall of the protective housing 502. A sliding block 508 extending to its bottom is slidably installed between the inner sides of the two guide frames 507. One end of the adjusting rod 509 is fixedly connected to the inner side of the sliding block 508 and extends to the top of the protective housing 502. A handle 510 is fixedly installed between the tops of the two adjusting rods 509.

[0035] The protective housing 502 is made of insulating and flame-retardant ABS engineering plastic, with an anti-static foam layer pasted on the inner wall. The two sliding connecting plates 501 are symmetrically distributed on the left and right. The top of the protective housing 502 has a strip groove that matches the handle 510. The bottom wall and the front side of the inner wall of the protective housing 502 are both designed with openings to facilitate the extension of the detection module 3. The rear side of the inner wall of the base 1 has a through hole that matches the horizontal connecting rod 504. The outer side of the handle 510 is covered with a sponge sleeve to improve grip comfort and facilitate the overall carrying of the device.

[0036] The fixing mechanism 6 includes an adjustment chamber 61, a limiting hole 62, a snap-fit ​​block 63, a U-shaped plate 64, a return spring 65, a positioning block 66, a connecting plate 67, and a sliding sleeve 68. The adjustment chamber 61 is fixedly installed on the rear side of the base 1. The limiting hole 62 is opened on the left and right sides of the inner wall of the adjustment chamber 61. The snap-fit ​​block 63 is slidably connected to the limiting hole 62. A U-shaped plate 64 that is slidably connected to the inner side of the adjustment chamber 61 is fixedly installed between the two snap-fit ​​blocks 63. A return spring 65 that is fixedly connected to the inner bottom wall of the adjustment chamber 61 is fixedly installed on the inner top wall of the U-shaped plate 64. A positioning block 66 is fixedly installed on the top of the U-shaped plate 64. A connecting plate 67 that extends to the rear side of the adjustment chamber 61 is fixedly installed on the inner top wall of the U-shaped plate 64. A sliding sleeve 68 is fixedly installed on the rear side of the connecting plate 67, providing a manual operation interface. When pressed down, the U-shaped plate 64 is pushed to compress the return spring 65 and release the positioning block 66.

[0037] When the protective housing 502 is in the closed state, the positioning block 66 fits against its outer side. The top end of the rear side of the positioning block 66 is designed with an inclination. The front side of the positioning block 66 has a slot that matches the protective housing 502. The inner top wall of the slot is designed with an opening. The rear side of the inner wall of the adjustment chamber 61 has a rectangular hole that matches the movement trajectory of the connecting plate 67. The return spring 65 is a cylindrical helical compression spring made of stainless steel. There are two return springs 65, which are symmetrically distributed on the left and right. The inner side of the support base 4 is provided with an anti-slip rubber pad, and the surface of the anti-slip rubber pad is provided with anti-slip texture. The support base 4 has a U-shaped design.

[0038] In use, first release the limiting mechanism 6 on the protective portable mechanism 5. Push the connecting plate 67 downwards via the sliding sleeve 68, causing the U-shaped plate 64 to move downwards and compressing the reset spring 65. This causes the positioning block 66 to move downwards, preventing it from contacting the outer side of the protective housing 502. Then, grasp the handle 506 and pull the vertical support frame 505 upwards, exposing the detection module 3. Afterwards, move the protective housing 502 backwards to fully expose the detection module 3, ensuring the horizontal connecting rod 504 slides smoothly within the limiting slide rail 503 without jamming. Place the base frame 7 on a stable surface and start the detector 2. Turn on the detector 2 via the touchscreen or physical shortcut key (power button), initialize the detection host 33 and robotic arm 32, select the detection mode (e.g., UHF, ultrasonic, or high-frequency current) on the touchscreen display, set the positioning parameters (e.g., sensor movement step size, sampling frequency), press the "positioning start button," and rotate the drive seat 31 to drive the detector. The robotic arm 32 drives the detection host 33 to rotate to the initial position. The detection host 33 collects signals through the partial discharge sensor 35. The robotic arm 32 moves to multiple detection points according to the preset path. The detection host 33 calculates the discharge power position in real time and displays three-dimensional coordinates or a heat map on the display screen. Different sensor types can be selected through physical shortcut keys (sensor switching keys). The joint angle sensor of the robotic arm 32 is operated to fine-tune the position of the detection host 33 to optimize signal reception. After the detection is completed, the "data export key" is pressed to save the results to the internal memory of the detector 2 or an external USB device. The statistical information such as discharge amplitude and frequency distribution can be viewed through the touch screen, and a detection report is generated. After the detection is completed, the device is stored and carried. The protective shell 502 is slowly pushed forward and completely closed to ensure that the positioning block 66 fits against the outside of the protective shell 502 to prevent accidental opening during transportation. The device is carried by holding the handle 510.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] In summary, this portable partial discharge positioning device for high-voltage electrical equipment, by setting up a detector 2 and a detection module 3, uses a rotary drive base 31 to drive a robotic arm 32 to rotate horizontally and adjust the detection direction. The robotic arm 32 is a multi-degree-of-freedom hinged design, with angle sensors at the joints, which can precisely control the spatial position of the detection host 33. By moving the partial discharge sensor 35 to different positions with the robotic arm 32, the time difference of the partial discharge signal arriving at each position is recorded. Combining the known sensor position and time difference data, the spatial coordinates of the discharge source are calculated using triangulation. The angle sensors at the robotic arm joints provide sensor orientation information to help correct positioning errors. To detect partial discharge in high-voltage electrical equipment, a high-frequency current sensor (HFCT) or ultra-high frequency sensor (UHF) is used. This sensor captures electromagnetic wave signals generated by partial discharge within the equipment using non-contact or contact methods. The partial discharge sensor 35 transmits the detected signal to the detection host 33 and the detector 2. A vibration-damping pan-tilt unit 34 reduces mechanical vibration interference. The detection host 33 filters, amplifies, and digitizes the signal. Using a specific spatial geometry algorithm, it calculates the three-dimensional spatial vector of the partial discharge source relative to the device body and extracts the characteristic parameters of the partial discharge, transmitting them to the detector 2. The results are displayed on a touchscreen, guiding the operator to the fault location. The device achieves precise spatial positioning by incorporating a protective portable mechanism 5 and a fixing mechanism 6. It uses insulating and flame-retardant ABS engineering plastic with an inner anti-static foam layer to prevent external electromagnetic interference and mechanical impact. The sliding design allows for quick opening and closing, protecting the detection module 3 from dust and moisture. The handle 510 can be retracted via an adjusting rod 509 and a sliding block 508. When the handle 510 is extended, it facilitates one-handed carrying or moving of the device. Pressing the connecting plate 67 compresses the return spring 65, causing the locking block 63 to disengage from the limiting hole 62, releasing the protective housing 502. After releasing the connecting plate 67, the return spring 65... 5. Pushing the U-shaped plate 64 to reset, the protective housing 502 is reset forward, and the positioning block 66 fixes the protective housing 502 again. After the protective housing 502 is successfully reset, it is easy to carry the whole device, which achieves the purpose of easy portability. This solves the problem that partial discharge detection methods, such as electrical positioning methods, although highly accurate, usually require complex synchronization systems and background software, and the equipment is bulky and not convenient for rapid on-site inspection. Moreover, most portable detectors on the market can only qualitatively determine the presence and intensity of partial discharge, and cannot provide accurate spatial location information. Operators need to rely on experience to conduct large-scale inspections on large equipment, which is inefficient and inaccurate.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable partial discharge positioning device for high-voltage electrical equipment, comprising a base (1), wherein a detector (2) is movably mounted on the inner side of the base (1), and support seats (4) that are respectively attached to the left and right sides of the inner wall of the base (1) are fixedly mounted on both sides of the base (1), and two base frames (7) are fixedly mounted on the bottom of the base (1), and a door (8) is hinged to the front side of the base (1), characterized in that: The top of the detector (2) is provided with a detection module (3) extending to the top of the base (1), and a protective portable mechanism (5) extending to the top of the base (1) and located behind the detection module (3) is provided between the left and right sides of the base (1). A fixing mechanism (6) is provided on the rear side of the base (1). The detection module (3) includes a rotary drive base (31), a robotic arm (32), a detection host (33), a shock-absorbing gimbal (34), and a partial discharge sensor (35). The rotary drive base (31) is fixed to the top of the detector (2) and extends above the base (1). One end of the robotic arm (32) is rotatably connected to the rotary drive base (31). The detection host (33) is mounted on the other end of the robotic arm (32). One end of the shock-absorbing gimbal (34) is fixedly connected to the bottom of the detection host (33). The partial discharge sensor (35) is fixedly connected to the other end of the shock-absorbing gimbal (34).

2. The portable partial discharge positioning device for high-voltage electrical equipment according to claim 1, characterized in that: The protective portable mechanism (5) includes a sliding connection part (501), a protective shell (502), a limiting slide rail (503), a horizontal connecting rod (504), a vertical support frame (505), a handle (506), a guide frame (507), a sliding block (508), an adjusting rod (509), and a handle (510). The sliding connection part (501) is fixedly installed on both the left and right sides of the base (1). The protective shell (502) is slidably installed on the top of the two sliding connection parts (501) and located on the outside of the base (1). The limiting slide rail (503) is fixedly installed on both the left and right sides of the inner wall of the base (1). One end of the horizontal connecting rod (504) is fixedly connected to the rear side of the inner wall of the protective shell (502), and the other end extends to the bottom. The inner side of the base (1) is slidably connected to the inner side of the limiting slide rail (503). A vertical support frame (505) extending to its inner side and fitting against the top of the base (1) is slidably installed on the top of the protective housing (502). The handle (506) is fixedly installed on the top of the vertical support frame (505). Two guide frames (507) are fixedly installed on both the left and right sides of the inner wall of the protective housing (502). A sliding block (508) extending to its bottom is slidably installed between the inner sides of the two guide frames (507). One end of the adjusting rod (509) is fixedly connected to the inner side of the sliding block (508) and extends to the top of the protective housing (502). A handle (510) is fixedly installed between the tops of the two adjusting rods (509).

3. The portable partial discharge positioning device for high-voltage electrical equipment according to claim 1, characterized in that: The fixing mechanism (6) includes an adjusting chamber (61), a limiting hole (62), a snap-fit ​​block (63), a U-shaped plate (64), a return spring (65), a positioning block (66), a connecting plate (67), and a sliding sleeve (68). The adjusting chamber (61) is fixedly installed on the rear side of the base (1). The limiting hole (62) is opened on the left and right sides of the inner wall of the adjusting chamber (61). The snap-fit ​​block (63) is slidably connected to the limiting hole (62). The two snap-fit ​​blocks (63) are connected to each other. A U-shaped plate (64) is fixedly installed and slidably connected to the inner side of the regulating chamber (61). A return spring (65) is fixedly installed on the inner top wall of the U-shaped plate (64) and fixedly connected to the inner bottom wall of the regulating chamber (61). A positioning block (66) is fixedly installed on the top of the U-shaped plate (64). A connecting plate (67) extending to the rear side of the regulating chamber (61) is fixedly installed on the inner top wall of the U-shaped plate (64). A sliding sleeve (68) is fixedly installed on the rear side of the connecting plate (67).

4. The portable partial discharge locating device for high-voltage electrical equipment according to claim 1, characterized in that: The rotary drive base (31) adopts a worm gear rotation structure driven by a servo motor, and the robotic arm (32) is a multi-degree-of-freedom articulated robotic arm with angle sensors installed at the joints.

5. A portable partial discharge positioning device for high-voltage electrical equipment according to claim 2, characterized in that: The protective housing (502) is made of insulating and flame-retardant ABS engineering plastic, and the inner wall is covered with an antistatic foam layer. The two sliding connecting plates (501) are symmetrically distributed from left to right. The top of the protective housing (502) is provided with a strip groove that matches the handle (510). The bottom wall and the front side of the inner wall of the protective housing (502) are both designed with openings. The rear side of the inner wall of the base (1) is provided with a through hole that matches the transverse connecting rod (504). The outside of the handle (510) is covered with a sponge sleeve.

6. A portable partial discharge positioning device for high-voltage electrical equipment according to claim 3, characterized in that: When the protective housing (502) is in the closed state, the positioning block (66) fits against its outer side. The top rear end of the positioning block (66) is inclined. The front side of the positioning block (66) is provided with a slot that matches the protective housing (502). The inner top wall of the slot is open. The rear side of the inner wall of the adjustment chamber (61) is provided with a rectangular hole that matches the movement trajectory of the connecting plate (67).

7. A portable partial discharge positioning device for high-voltage electrical equipment according to claim 3, characterized in that: The reset spring (65) is a cylindrical helical compression spring made of stainless steel. There are two reset springs (65) and they are symmetrically distributed on the left and right. The inner side of the support base (4) is provided with an anti-slip rubber pad, and the surface of the anti-slip rubber pad is provided with anti-slip texture. The support base (4) is U-shaped.

8. A portable partial discharge positioning device for high-voltage electrical equipment according to claim 1, characterized in that: The number of the base frame (7) is two and they are symmetrically distributed on the left and right. The front side of the inner wall of the base (1) is designed with an opening. A U-shaped rod is fixedly installed on the front side of the box door (8).

9. A portable partial discharge positioning device for high-voltage electrical equipment according to claim 1, characterized in that: The surface of the detection host (33) is provided with a touch screen and physical shortcut keys, including a power key, a positioning start key, a sensor switching key and a data export key. The front of the detector (2) is provided with a touch screen.

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