A current transformer, error test detection platform and detection method thereof

Abstract

The invention relates to the technical field of transformer testing and production, and in particular to a current transformer, an error test detection platform and a detection method thereof. The error test detection platform comprises a machine body, a machine base is arranged in the middle of the machine body, conveying components are arranged on both sides of the machine base, a detection component is arranged on the top of the machine base, and a transfer component is arranged on the outside of the detection component; the detection component comprises connecting parts symmetrically arranged on the machine base, the tops of the connecting parts are provided with conducting clamps, conductors are commonly connected between the conducting clamps, array-distributed placement seats are arranged below the conductors, and symmetrically distributed plug connectors are arranged on the placement seats; the invention arranges a conveying component and a transfer component, and through the cooperation of the conveying component on one side of the machine base and the transfer component, a current transformer body undergoing error test detection is transported into and out of the detection component, thereby realizing the automatic operation of the error detection work of the current transformer body and improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer testing and production, and in particular to a current transformer, an error test detection platform and a detection method thereof. Background Art

[0002] The current transformer consists of a closed iron core and a winding. The function of the current transformer is to convert the high voltage and large current on the primary side into a standard low voltage and small current on the secondary side based on the principle of electromagnetic induction, so as to facilitate measurement by measuring equipment such as ammeters, thereby obtaining the actual value of the current.

[0003] Since a large number of current transformers are used in the power system and each current transformer is in working condition for a long time, it is of great significance to the safe operation of the entire power system. Therefore, during the production process of the current transformer, the current transformer must be tested. During the testing process of the current transformer, each current transformer must be calibrated separately, which reduces the detection efficiency of the current transformer. In addition, frequent plugging or wiring is required during the test, which has certain safety hazards and is not safe to use.

[0004] The Chinese patent application number CN201310210164.2 discloses a current transformer calibration device, including a voltage regulator, an adjustable resistor, a first ammeter, a second ammeter, a calibration table, and an automatic display device; the voltage regulator body and the adjustable resistor body are arranged in the calibration table box, and the first ammeter and the second ammeter are embedded on the calibration table work surface; two groups of insulating pillars are arranged on the calibration table, and a copper bar is arranged between the two groups of insulating pillars; a secondary terminal is also arranged on the calibration table; the automatic display device includes a single-chip microcomputer, a current conversion module, a power module, and a touch display screen, the input end of the power module is connected to the power supply, and the output end of the power module is connected to the single-chip microcomputer, the current conversion module, and the touch display screen; the input end of the current conversion module is connected to the first ammeter and the second ammeter, the output end of the current conversion module is connected to the input end of the single-chip microcomputer, and the single-chip microcomputer is interconnected with the touch display screen. The device has a simple structure, can calibrate multiple current transformers at the same time, and improves work efficiency.

[0005] Although the existing technology has improved the efficiency of error detection of current transformers, the transformer detection work still needs to be completed through a manual inspection station or a manual transformer calibration device. Since the wiring of the primary and secondary ends of the transformer must be completed manually, it is difficult to further increase the daily calibration volume of the transformer. The goal can only be achieved by increasing the calibration equipment, manpower and venue.

[0006] Since current transformers need to be frequently plugged in or wired during testing, if the connection between the transformer and the detection device is poor or loose, additional resistance will be generated during the current transmission process, thereby introducing measurement errors. At the same time, large resistance can easily lead to local overheating. Long-term overheating will not only damage the terminal itself, but may also damage the surrounding insulating materials, leading to safety accidents such as fire.

[0007] Therefore, it is necessary to invent a current transformer, an error test detection platform and a detection method thereof to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a current transformer, an error test detection platform and a detection method thereof, so as to solve the technical problems raised in the above-mentioned background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An error test detection platform, which is used for error test detection of a current transformer body, comprises a body, a base is provided in the middle of the body, conveying components are provided on both sides of the base, a detection component is provided on the top of the base, a transport component is provided on the outside of the detection component, and the transport component is used to transport the current transformer body to the detection component;

[0011] The detection assembly comprises a connector symmetrically arranged on the machine base, the top of each connector is provided with a conducting clamp, a conductor is commonly connected between the conducting clamps, a placement seat distributed in an array is provided below the conductor, a plug connector symmetrically distributed is provided on the placement seat, and an adjustment assembly is provided at the connection between the plug connector and the placement seat;

[0012] A mounting assembly is provided at the bottom of the current transformer body, and the mounting assembly includes a mounting base connected to the current transformer body. The mounting base is provided with symmetrically distributed connecting terminals, one end of the connecting terminal is electrically connected to the current transformer body through a connecting wire, and the other end of the connecting terminal is electrically connected to the plug connector through a connecting assembly.

[0013] Preferably, the connection group comprises an empty slot opened on the mounting seat, and symmetrically distributed contact pieces are arranged inside the empty slot, and the contact pieces are electrically connected to the connection terminals;

[0014] The two contact members have arc surfaces on opposite sides thereof, and the arc surfaces are in contact with the plug connector. The two contact members have elastic limiting parts on opposite sides thereof, and one end of the elastic limiting parts away from the contact members is connected to the empty slot.

[0015] Preferably, the adjustment assembly comprises a movable groove provided on the placement seat, the interior of the movable groove is limitedly slidably connected with a sliding plate, a ring member is provided on the top of the sliding plate, the inner ring of the ring member is in contact with the plug connector, and the plug connector is provided in the middle of the sliding plate;

[0016] An elastic member is provided at the bottom of the sliding plate, one end of the elastic member is connected to the bottom of the sliding plate, the other end of the elastic member is connected to the bottom of the movable groove, a connecting wire is provided at the bottom of the sliding plate, one end of the connecting wire is fixedly connected to the plug connector, and the other end of the connecting wire passes through the movable groove and is connected to an external detection instrument.

[0017] Preferably, a through hole is provided at the top of the movable groove, the through hole is located directly above the annular member, and the diameter of the through hole is larger than the diameter of the plug connector;

[0018] A threading hole is provided at the bottom of the movable groove, and the threading hole is located directly below the elastic member. The diameter of the threading hole is larger than the diameter of the connecting wire.

[0019] Preferably, a rotating assembly is provided at the bottom of the placement seat, and the rotating assembly includes a connecting seat, the connecting seat is rotatably connected to the machine base, one end of the connecting seat is fixedly connected to the bottom of the placement seat, and the other end of the connecting seat is fixedly connected to a rotating gear, the rotating gear is located inside the machine base, a driving gear is provided on the outside of the rotating gear, the driving gear is meshed with the rotating gear, and a driving motor is provided at the end of the driving gear.

[0020] Preferably, the transport assembly comprises a conveying track arranged on the top of the machine body, a symmetrically distributed transmission belt is arranged inside the conveying track, a driving device for driving the transmission belt is arranged at the end of the conveying track, and a lifting piece is arranged in the middle of the conveying track;

[0021] The lifting member comprises a lifting cylinder arranged on the top of the machine body, and a lifting plate is arranged at the output end of the lifting cylinder, and the lifting plate does not contact with the transmission belt.

[0022] Preferably, the transfer assembly includes a transfer robot, which is arranged on the top of the machine body. A transfer frame is provided at the output end of the transfer robot. An array of clamps is provided at the bottom of the transfer frame. The clamps are used to clamp and transfer the current transformer body. When the transfer frame is located directly above the conductor, the position of the clamps corresponds to the position of the placement seat.

[0023] Preferably, the clamping member comprises a clamping seat, the clamping seat is arranged at the bottom of the transport frame, the bottom of the clamping seat is provided with symmetrically distributed clamping parts, and the opposite sides of the two clamping parts are provided with array-distributed pressure sensors;

[0024] An elastic telescopic portion is provided on the top of the clamping portion, and two ends of the elastic telescopic portion are respectively connected to one side opposite to the two clamping portions.

[0025] The present invention also provides a current transformer applied to an error test detection platform, wherein the current transformer is a current transformer body, wherein the current transformer body comprises a transformer body, a fixed terminal is arranged on the outside of the transformer body, and a connecting plate is arranged on the bottom of the transformer body.

[0026] The present invention also provides a detection method for an error test detection platform, the detection method comprising the following steps:

[0027] S1. The driving device drives the transmission belt to operate, and the transmission belt transports the current transformer body to the position where the base is located. The transmission belt stops running, and the lifting member is controlled to lift the mounting seat, so that the mounting seat is out of contact with the transmission belt;

[0028] S2, controlling the clamping part on the transfer robot to clamp the current transformer body, and moving the current transformer body from the transport component to the detection component, and the detection component performs error detection on the current transformer body;

[0029] S3, when the clamping part clamps the current transformer body, it simultaneously determines whether the current transformer body is in a deflected state, and controls the rotating assembly to drive the placement seat to deflect according to the detection result, so that the plug connector on the placement seat can be connected with the contact piece;

[0030] S4. After the transfer manipulator transfers the current transformer body from the transport assembly to the detection assembly, the conductor passes through the middle of the current transformer body, the mounting seat at the bottom of the current transformer body is located on the top of the placement seat, and the plug connector on the placement seat is connected to the contact piece inside the empty slot;

[0031] S5. The transfer robot removes the current transformer body from the conductor through the clamping part, and moves the current transformer body to the transport component outside the base, and the transport component transports the current transformer body to the next process.

[0032] Technical effects and advantages of the present invention:

[0033] 1. The present invention provides a conveying component and a transfer component. Through the cooperation of the conveying component on one side of the base and the transfer component, the current transformer body that has not been tested for error is transported into the detection component, and the detection component performs an error test on it. Through the cooperation of the transfer component and the conveying component on the other side of the base, the current transformer body that has completed the error test is transported out of the detection component, thereby realizing the automated operation of the error detection work of the current transformer body and saving labor.

[0034] 2. The present invention provides a rotating assembly and a transfer assembly. When the clamping part clamps the current transformer body, the clamping part determines the state of the current transformer body and controls the rotating assembly to drive the placement seat to deflect, so as to achieve full contact between the plug connector and the contact piece; when the connection between the plug connector and the contact piece becomes loose, the clamping part is controlled to fix and limit the current transformer body, and at the same time, the rotating assembly is controlled to drive the placement seat to deflect, so that the plug connector is squeezed and contacted with the arc surface, so as to avoid poor contact between the contact piece and the plug connector, resulting in additional resistance in the current transmission process, which affects the current measurement accuracy.

[0035] 3. The present invention provides an annular member and an elastic member. When rust appears on the top of the plug connector, the annular member contracts to release the restriction on the elastic member, so that the elastic member pushes the sliding plate upward, and the intact portion of the plug connector located in the middle area of ​​the annular member is able to enter the empty groove and be pressed into contact with the contact member; when the connection between the plug connector and the contact member generates heat, the annular member presses the sliding plate downward, and the sliding plate drives the plug connector to move downward synchronously, so that the plug connector gradually breaks away from the contact with the contact member, avoiding excessive temperature between the plug connector and the contact member, causing damage to the surrounding insulating materials, and further causing safety accidents such as fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the main structure of the current transformer of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the installation assembly of the present invention;

[0038] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0039] Figure 4 It is a structural schematic diagram of the conveying assembly of the present invention;

[0040] Figure 5 It is a structural schematic diagram of the machine base of the present invention;

[0041] Figure 6 It is a structural schematic diagram of the machine base of the present invention from another perspective;

[0042] Figure 7 It is a schematic diagram of the structure of the clamping member of the present invention;

[0043] Figure 8 It is a structural schematic diagram of the placement seat of the present invention;

[0044] Fig. 9 It is a structural schematic diagram of the regulating assembly of the present invention;

[0045] Fig.10 This is a schematic diagram of a first working state of the plug connector of the present invention;

[0046] Fig.11 It is a schematic diagram of the second working state of the plug connector of the present invention;

[0047] Fig.12 It is a schematic diagram of the connection state between the plug connector and the contact piece of the present invention.

[0048] In the figure: 100, current transformer body; 1001, transformer body; 1002, fixed terminal; 1003, connecting plate; 1, machine body; 2, conveying assembly; 201, conveying track; 202, transmission belt; 203, driving device; 204, lifting member; 2041, lifting plate; 2042, lifting cylinder; 3, machine base; 4, detection assembly; 401, connecting member; 402, conducting claw; 403, conductor; 404, placement seat; 405, plug connector; 5, adjustment assembly; 501, movable groove; 502, sliding plate; 503, ring member; 504, through hole; 505, elastic member; 506, threading hole; 507, connecting wire; 6, rotating assembly; 601, connecting seat; 602, rotating gear; 603, driving gear; 7, transfer assembly; 701, transfer robot; 702, transfer frame; 703, clamping member; 7031, clamping seat; 7032, clamping part; 7033, elastic telescopic part; 8, installation assembly; 801, installation seat; 802, connecting terminal; 803, connecting wire; 804, empty slot; 805, contact member; 8051, arc surface; 806, elastic limiting part. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] Embodiment 1:

[0051] Reference Figures 1 to 12 As shown, the present invention provides an error test detection platform, which is used for error test detection of a current transformer body 100, and includes a body 1, a base 3 is provided in the middle of the body 1, conveying components 2 are provided on both sides of the base 3, a detection component 4 is provided on the top of the base 3, a transfer component 7 is provided on the outer side of the detection component 4, and the transfer component 7 is used to transport the current transformer body 100 to the detection component 4.

[0052] The transporting components 2 arranged on both sides of the base 3 are used to transport the current transformer body 100 into the detection component 4 and to transport the current transformer body 100 out of the detection component 4 respectively.

[0053] by Figure 3 For example, after the transport component 2 located on the left side of the base 3 transports the current transformer body 100 to the position of the base 3, the transfer component 7 moves the current transformer body 100 from the transport component 2 to the detection component 4, and the detection component 4 performs error detection on the current transformer body 100. After the detection component 4 completes the error detection, the transport component 7 removes the current transformer body 100 from the detection component 4 and transports the current transformer body 100 to the transport component 2 on the right side of the base 3, and the transport component 2 on the right side of the base 3 transports the current transformer body 100 to the next process.

[0054] The detection component 4 includes a connector 401 symmetrically arranged on the base 3, and a conductive clamp 402 is provided on the top of the connector 401. A conductor 403 is commonly connected between the conductive clamps 402. An array-distributed placement seat 404 is provided below the conductor 403, and a symmetrically distributed plug connector 405 is provided on the placement seat 404. An adjustment component 5 is provided at the connection between the plug connector 405 and the placement seat 404.

[0055] The connecting member 401 includes an electric push rod, the fixed end of which is fixedly connected to the base 3, and the telescopic end of which is connected to the conductive clamp 402. The conductive clamp 402 includes a clamp driven by a driving component, and the clamp itself is electrically connected to the current loop.

[0056] An installation component 8 is provided at the bottom of the current transformer body 100, and the installation component 8 includes a mounting base 801 connected to the current transformer body 100, and symmetrically distributed connecting terminals 802 are provided on the mounting base 801. One end of the connecting terminal 802 is electrically connected to the current transformer body 100 through a connecting wire 803, and the other end of the connecting terminal 802 is connected to the plug connector 405 through a connecting component.

[0057] When in use, after the transfer component 7 transfers the current transformer body 100 from the transport component 2 to the detection component 4, the conductor 403 passes through the middle of the current transformer body 100, the mounting seat 801 at the bottom of the current transformer body 100 is located on the top of the placement seat 404, and the plug connector 405 on the placement seat 404 is electrically connected to the connecting component.

[0058] Reference Figure 2 and Fig.12 As shown, the connection group includes an empty slot 804 opened on the mounting seat 801 , and symmetrically distributed contact members 805 are provided inside the empty slot 804 . The contact members 805 are electrically connected to the connection terminals 802 .

[0059] The mounting seat 801 at the bottom of the current transformer body 100 is located on the top of the placement seat 404 , and the plug connector 405 on the placement seat 404 contacts the inner side of the contact piece 805 , and the plug connector 405 is electrically connected to the connection terminal 802 through the contact piece 805 .

[0060] The two contacts 805 have arcuate surfaces 8051 on opposite sides thereof, and the arcuate surfaces 8051 are in contact with the plug connector 405 . The two contacts 805 have elastic limit portions 806 on opposite sides thereof, and the ends of the elastic limit portions 806 away from the contacts 805 are connected to the empty slot 804 .

[0061] By providing the arc surface 8051, the plug connector 405 can better enter the interior of the empty slot 804, that is, the area between the two contact pieces 805. At the same time, after the plug connector 405 contacts the arc surface 8051, as the plug connector 405 goes deeper, the plug connector 405 and the contact piece 805 are squeezed and contacted. After the contact piece 805 is compressed, the elastic limiting portion 806 moves toward the inner wall of the empty slot 804.

[0062] The elastic limiting part 806 includes an elastic telescopic sleeve, a fixed end of the elastic telescopic sleeve is connected to the empty slot 804, and a movable end of the elastic telescopic sleeve is connected to the contact piece 805. A first compression sensor is provided inside the elastic limiting part 806. By detecting the value of the first compression sensor, it can be determined whether the contact piece 805 is in full contact with the plug connector 405.

[0063] Reference Fig. 9 and Fig.12 As shown, the adjustment component 5 includes a movable groove 501 opened on the placement seat 404, and the internal limiting sliding connection of the movable groove 501 is connected to the sliding plate 502. The top of the sliding plate 502 is provided with a ring member 503, and the inner circle of the ring member 503 is in contact with the plug connector 405, and the plug connector 405 is arranged in the middle of the sliding plate 502.

[0064] The plug connector 405 is hinged to the sliding plate 502 . Since the inner circle of the ring 503 contacts the plug connector 405 , the inner circle of the ring 503 limits the position of the plug connector 405 , so that the plug connector 405 and the sliding plate 502 are in a vertical state.

[0065] The annular member 503 comprises an annular elastic ring, a cavity is arranged in the annular elastic ring, and a gas that expands due to heat is arranged in the cavity.

[0066] An elastic member 505 is provided at the bottom of the sliding plate 502, one end of the elastic member 505 is connected to the bottom of the sliding plate 502, and the other end of the elastic member 505 is connected to the bottom of the movable groove 501. A connecting wire 507 is provided at the bottom of the sliding plate 502, one end of the connecting wire 507 is fixedly connected to the plug connector 405, and the other end of the connecting wire 507 passes through the movable groove 501 and is connected to an external detection instrument.

[0067] The elastic member 505 includes a spring, one end of which is fixedly connected to the bottom of the sliding plate 502, and the other end of the spring is fixedly connected to the bottom of the movable groove 501. A second compression sensor is provided at the position where the spring is connected to the bottom of the movable groove 501. Through the value of the second compression sensor, it can be determined whether the contact member 805 has an overtemperature phenomenon after being connected to the plug connector 405.

[0068] Reference Figure 7 and Fig.12 As shown, a through hole 504 is provided at the top of the movable groove 501 . The through hole 504 is located directly above the annular member 503 . The diameter of the through hole 504 is greater than the diameter of the plug connector 405 .

[0069] A threading hole 506 is provided at the bottom of the movable groove 501 . The threading hole 506 is located directly below the elastic member 505 . The diameter of the threading hole 506 is greater than the diameter of the connecting wire 507 .

[0070] Reference Figures 9 to 11 As shown, a rotating assembly 6 is provided at the bottom of the placement seat 404, and the rotating assembly 6 includes a connecting seat 601, which is rotatably connected to the machine base 3, one end of the connecting seat 601 is fixedly connected to the bottom of the placement seat 404, and the other end of the connecting seat 601 is fixedly connected to a rotating gear 602, which is located inside the machine base 3, and a driving gear 603 is provided on the outer side of the rotating gear 602, which is meshed with the rotating gear 602, and a driving motor is provided at the end of the driving gear 603.

[0071] After the driving motor is started, it drives the driving gear 603 to rotate, and the driving gear 603 rotates through the rotating gear 602 , and the rotating gear 602 drives the placement seat 404 to deflect, so as to achieve full contact between the plug connector 405 and the contact piece 805 .

[0072] Reference Figure 3 and Figure 4 As shown, the transport assembly 2 includes a conveying track 201 arranged on the top of the body 1, a symmetrically distributed transmission belt 202 is arranged inside the conveying track 201, a driving device 203 for driving the transmission belt 202 is arranged at the end of the conveying track 201, and a lifting member 204 is arranged in the middle of the conveying track 201.

[0073] The mounting seat 801 is located between two transmission belts 202, and the transmission belts 202 drive the mounting seat 801 to move on the conveying track 201. When the mounting seat 801 moves to the set position, the transmission belt 202 stops moving, and the mounting seat 801 is lifted by the lifting member 204 to disengage the mounting seat 801 from the transmission belt 202, thereby avoiding motion interference when the transfer component 7 transfers the current transformer body 100.

[0074] The lifting member 204 includes a lifting cylinder 2042 arranged on the top of the machine body 1 , and a lifting plate 2041 is provided at the output end of the lifting cylinder 2042 , and the lifting plate 2041 does not contact with the transmission belt 202 .

[0075] After the mounting seat 801 moves to the set position, the lifting cylinder 2042 is started, and the output end of the lifting cylinder 2042 pushes the lifting plate 2041 to move upward. The lifting plate 2041 supports the bottom of the mounting seat 801. As the lifting cylinder 2042 continues to extend, the lifting plate 2041 lifts the mounting seat 801 and causes the mounting seat 801 to disengage from the transmission belt 202.

[0076] Reference Figures 3 to 7 As shown, the transfer assembly 7 includes a transfer robot 701, which is arranged on the top of the body 1. A transfer frame 702 is provided at the output end of the transfer robot 701. An array of clamps 703 are provided at the bottom of the transfer frame 702. The clamps 703 are used to clamp and transfer the current transformer body 100. When the transfer frame 702 is located directly above the conductor 403, the position of the clamps 703 corresponds to the position of the placement seat 404.

[0077] Reference Figure 7 As shown, the clamping member 703 includes a clamping seat 7031, which is arranged at the bottom of the transfer frame 702. The bottom of the clamping seat 7031 is provided with symmetrically distributed clamping parts 7032, and the opposite sides of the two clamping parts 7032 are provided with array-distributed pressure sensors.

[0078] A driving component is disposed inside the clamping seat 7031 , and the driving component drives the two clamping parts 7032 to move relative to or toward each other, so as to achieve the fixing and releasing of the current transformer body 100 by the clamping parts 7032 .

[0079] An elastic telescopic portion 7033 is provided on the top of the clamping portion 7032 , and two ends of the elastic telescopic portion 7033 are respectively connected to opposite sides of the two clamping portions 7032 .

[0080] The elastic telescopic part 7033 includes a telescopic rod, both ends of which are respectively connected to the corresponding clamping parts 7032. A spring is provided on the outside of the telescopic rod, and both ends of the spring are respectively connected to the corresponding clamping parts 7032. A third compression sensor is provided at the connection between the spring and the clamping part 7032. By constructing a rectangular coordinate system with the pressure sensors distributed on the two clamping parts 7032 and the third compression sensor, it can be determined whether the current transformer body 100 is deflected when the clamping part 7032 clamps the current transformer body 100.

[0081] The current transformer is a current transformer body 100 , which includes a transformer body 1001 . A fixed terminal 1002 is provided on the outer side of the transformer body 1001 , and a connecting plate 1003 is provided on the bottom of the transformer body 1001 .

[0082] The fixed terminal 1002 is electrically connected to the connecting terminal 802 via the connecting wire 803 . The connecting plate 1003 is fixedly connected to the top of the mounting base 801 via a bolt assembly. A through hole is provided in the middle of the current transformer body 100 , and the diameter of the through hole is greater than the diameter of the conductor 403 .

[0083] A control terminal is provided on the top of the base 3, and a control system is provided inside the control terminal. The control system is used to control the movement of all electrical components on the body 1.

[0084] This embodiment provides an error test detection platform for performing an error test on a current transformer body 100. Figure 3 For example, the driving device 203 located on the conveying track 201 on the left side of the base 3 is started, and the driving device 203 drives the transmission belt 202 to operate. The transmission belt 202 transports the current transformer body 100 to the position of the base 3. Then, the transmission belt 202 is controlled to stop running and the lifting cylinder 2042 is controlled to start. The lifting cylinder 2042 lifts the mounting seat 801 through the lifting plate 2041, and makes the mounting seat 801 disengage from the transmission belt 202.

[0085] After receiving the start information of the lifting cylinder 2042, the control system controls the operation of the transfer robot 701, and the transfer robot 701 drives the transfer frame 702 to move to just above the lifting plate 2041, and controls the drive component on the clamping seat 7031 to start, and the drive component drives the clamping part 7032 to clamp the current transformer body 100. After clamping, the transfer robot 701 moves the current transformer body 100 from the conveying component 2 to the detection component 4, and the detection component 4 performs error detection on the current transformer body 100.

[0086] It should be noted that both ends of the conductor 403 are fixed by the conductive clamp 402 and the connector 401. When the clamping portion 7032 clamps the current transformer body 100, the conductive clamp 402 and the connector 401 at any end of the conductor 403 are controlled to release the limit on the conductor 403, that is, at this time, only one end of the conductor 403 is fixed and limited by the conductive clamp 402 and the connector 401; the conductor 403 includes a copper rod.

[0087] After the transfer robot 701 transfers the current transformer body 100 from the transport component 2 to the detection component 4, the conductor 403 passes through the middle of the current transformer body 100, and the mounting seat 801 at the bottom of the current transformer body 100 is located on the top of the placement seat 404, and the plug connector 405 on the placement seat 404 is connected to the contact piece 805 inside the empty slot 804.

[0088] At this time, the conducting clamps 402 at both ends of the control conductor 403 are clamped and fixed by the connector 401. Since the conducting clamps 402 are connected to the current loop, and the conductor 403 passes through the middle of the current transformer body 100, it indicates that the primary side of the current transformer body 100 is now connected to the current loop to be measured; at the same time, since the plug connector 405 is squeezed and contacted with the contact piece 805, and the plug connector 405 is connected to an external detection instrument through the connecting line 507, it indicates that the secondary side of the current transformer body 100 is now connected to an instrument used for measurement or detection (such as an ammeter, a power analyzer, etc.).

[0089] After the primary and secondary sides of the current transformer body 100 are connected, the current is slowly increased to a set test point, such as 10% of the rated current. At each test point, the output current and output voltage of the current transformer are measured and recorded, and the error of the current transformer, including the in-phase error and the orthogonal error, is calculated based on the measured data. Whether the current transformer is qualified is determined based on the error data. If the error exceeds the allowable range, the current transformer body 100 is marked and removed in the subsequent process.

[0090] After the detection component 4 completes the error detection, the conductor 403 returns to the state where only one end is fixed and limited, so that the transfer robot 701 can remove the current transformer body 100 from the conductor 403 through the clamping member 703, and then transfer the current transformer body 100 to the conveying component 2 on the right side of the base 3 through the clamping member 703, and the conveying component 2 on the right side of the base 3 transports the current transformer body 100 to the next process.

[0091] When the transfer robot 701 transports the current transformer body 100 to the detection component 4 through the clamping part 703, since the clamping part 7032 clamps the current transformer body 100, after the clamping part 7032 completes the clamping operation, the control system constructs a rectangular coordinate system by detecting the pressure sensors distributed on the opposite sides of the two clamping parts 7032 and the compression amount of the elastic expansion part 7033, and can determine whether the current transformer body 100 is skewed when the clamping part 7032 clamps the current transformer body 100.

[0092] It should be noted that: a straight line is constructed according to the position of the pressure sensor with the maximum value on the two clamping parts 7032, and the compression amount of the elastic expansion part 7033 is the center line. According to the angle between the straight line and the center line, it can be determined whether the current transformer body 100 is deflected, as well as the direction and angle of the deflection.

[0093] When the control system detects that the current transformer body 100 clamped on the clamping part 7032 is in a skewed state, the placement seat 404 opposite to the clamping part 7032 corresponding to the current transformer body 100 in the skewed state is determined, and the driving motor is controlled to drive the driving gear 603 to rotate according to the skew angle. The driving gear 603 rotates through the rotating gear 602, and the rotating gear 602 drives the placement seat 404 to deflect, so as to achieve full contact between the plug connector 405 and the contact piece 805 when the mounting seat 801 on the current transformer body 100 contacts the placement seat 404, thereby avoiding the plug connector 405 being unable to connect to the secondary side of the current transformer body 100.

[0094] After the mounting seat 801 contacts the placement seat 404, the plug connector 405 enters the interior of the empty slot 804 and is squeezed and contacted with the curved surface 8051 of the contact piece 805. As the plug connector 405 goes deeper, the plug connector 405 squeezes the curved surface 8051. After the contact piece 805 is compressed, the elastic limiting portion 806 moves toward the inner wall of the empty slot 804. By detecting the value of the first compression sensor, it can be determined whether the contact piece 805 is in full contact with the plug connector 405.

[0095] When the control system detects that the value of the first compression sensor is less than the set value, it indicates that during long-term use, the elastic limiter 806 is affected by elastic creep (elastic fatigue), resulting in the elastic limiter 806 being unable to apply sufficient pressure to the contact member 805, resulting in the contact member 805 and the plug connector 405 being loosened when the contact member 805 and the plug connector 405 are in squeeze contact (see Fig.10 as shown).

[0096] When the control system detects that the connection between the contact piece 805 and the plug connector 405 is loose, the control clamping part 7032 is controlled to clamp and position the current transformer body 100 corresponding to the loose phenomenon, and then the drive motor is controlled to drive the rotating gear 602 to rotate, and the rotating gear 602 drives the placement seat 404 opposite thereto to deflect. During the deflection of the placement seat 404, the plug connector 405 gradually squeezes against one of the contact pieces 805. Since the plug connector 405 is ball-jointed with the sliding plate 502, after the plug connector 405 is squeezed against one of the contact pieces 805, the plug connector 405 is deflected synchronously due to the influence of the hinge, and the deflected plug connector 405 is strongly squeezed against the arc surfaces 8051 on the two contact pieces 805 in the same slot 804 (specifically, Fig.11 As shown in the figure, the contact piece 805 and the plug connector 405 are in a tightly connected state, thereby preventing the connection between the contact piece 805 and the plug connector 405 from becoming loose, causing additional resistance or poor contact during current transmission, thereby affecting the current measurement accuracy and increasing the error of the current transformer.

[0097] When the control system detects that the value of the first compression sensor is in a chaotic state while the plug connector 405 gradually goes deeper into the empty slot 804, it indicates that during long-term use, rust has appeared on the top of the plug connector 405, causing pits to appear on the top of the plug connector 405, and the value of the first compression sensor is in a chaotic state.

[0098] When the control system detects that rust has occurred on the top of the plug connector 405, it controls the annular member 503 on the top of the sliding plate 502 to contract, so that the elastic member 505 at the bottom of the sliding plate 502 is released from restriction. The elastic member 505 pushes the sliding plate 502 upward, so that the plug connector 405 located in the middle area of ​​the annular member 503 enters the empty slot 804 and is squeezed into contact with the contact member 805, thereby realizing the error test detection.

[0099] After completing the error test, the staff will replace the plug connector 405 to prevent the rusted plug connector 405 from continuing to work during subsequent work, causing the contact resistance between the plug connector 405 and the contact piece 805 to increase, thereby hindering the current transmission process and affecting the measurement accuracy.

[0100] It should be noted that the annular member 503 includes an annular elastic ring, and a control valve is provided on the outside of the annular elastic ring. When rust appears on the top of the plug connector 405, the control valve opens, the annular elastic ring is discharged from the control valve, and the annular elastic ring loses its limit on the elastic member 505; the elastic member 505 is in a compressed state in the initial state.

[0101] During the error test of the current transformer body 100, if the control system detects that the value of the second compression sensor is greater than the set value, it indicates that the load on the secondary side of the current transformer body 100 is too large, that is, the impedance of the connected instrument or protection device is too small, which will cause the secondary current to be too large, causing the connection between the plug connector 405 and the contact piece 805 to heat up, or the current passing through the current transformer body 100 exceeds its rated flow rate, causing the iron core to saturate, and then causing the connection between the plug connector 405 and the contact piece 805 to heat up, so that the gas inside the annular member 503 expands due to the heat, and the annular member 503 squeezes the sliding plate 502 to further contract the elastic member 505, causing the value of the second compression sensor to be greater than the set value.

[0102] When the control system detects that the connection between the plug connector 405 and the contact piece 805 is hot, the annular member 503 squeezes the sliding plate 502 downward, and the sliding plate 502 drives the plug connector 405 to move downward synchronously, so that the plug connector 405 gradually breaks away from the contact with the contact piece 805, avoiding the temperature between the plug connector 405 and the contact piece 805 to be too high, causing damage to the surrounding insulating materials, and then causing safety accidents such as fire.

[0103] While the sliding plate 502 drives the plug connector 405 to move downward synchronously, the control system controls the clamping part 7032 on the transfer robot 701 to clamp and position the current transformer body 100 with overtemperature, and drives it to move upward, so that the contact piece 805 is quickly separated from the plug connector 405.

[0104] The present invention sets a rotating component 6 and a transfer component 7. When the clamping part 7032 clamps the current transformer body 100, the clamping part 7032 judges the state of the current transformer body 100, and controls the rotating component 6 to drive the placement seat 404 to deflect, so as to achieve full contact between the plug connector 405 and the contact piece 805; when the connection between the plug connector 405 and the contact piece 805 becomes loose, the clamping part 7032 is controlled to fix and limit the current transformer body 100, and at the same time, the rotating component 6 is controlled to drive the placement seat 404 to deflect, so that the plug connector 405 is squeezed and contacted with the arc surface 8051, so as to avoid poor contact between the contact piece 805 and the plug connector 405, resulting in additional resistance in the current transmission process, which affects the current measurement accuracy.

[0105] The present invention provides an annular member 503 and an elastic member 505. When rust appears on the top of the plug connector 405, the annular member 503 contracts to release the restriction on the elastic member 505, so that the elastic member 505 pushes the sliding plate 502 to move upward, and the plug connector 405 located in the intact portion of the middle area of ​​the annular member 503 is able to enter the empty groove 804 and be pressed and contacted with the contact member 805; when the connection between the plug connector 405 and the contact member 805 generates heat, the annular member 503 presses the sliding plate 502 to move downward, and the sliding plate 502 drives the plug connector 405 to move downward synchronously, so that the plug connector 405 gradually breaks away from the contact with the contact member 805, thereby avoiding excessive temperature between the plug connector 405 and the contact member 805, causing damage to the surrounding insulating materials, and further causing safety accidents such as fire.

[0106] Embodiment 2:

[0107] The present invention also provides a detection method for an error test detection platform, the detection method comprising the following steps:

[0108] S1, the driving device 203 drives the transmission belt 202 to operate, and the transmission belt 202 transports the current transformer body 100 to the position where the machine base 3 is located. The transmission belt 202 stops operating, and the lifting member 204 is controlled to lift the mounting seat 801, so that the mounting seat 801 is out of contact with the transmission belt 202;

[0109] S2, controlling the clamping part 7032 on the transfer manipulator 701 to clamp the current transformer body 100, and moving the current transformer body 100 from the conveying component 2 to the detection component 4, and the detection component 4 performs error detection on the current transformer body 100;

[0110] S3, when the clamping part 7032 clamps the current transformer body 100, it is determined whether the current transformer body 100 is in a deflected state, and the rotating assembly 6 is controlled to drive the placement seat 404 to deflect according to the detection result, so that the plug connector 405 on the placement seat 404 can be connected with the contact member 805;

[0111] S4, after the transfer robot 701 transfers the current transformer body 100 from the transport assembly 2 to the detection assembly 4, the conductor 403 passes through the middle of the current transformer body 100, the mounting seat 801 at the bottom of the current transformer body 100 is located on the top of the placement seat 404, and the plug connector 405 on the placement seat 404 is connected to the contact piece 805 inside the empty slot 804;

[0112] S5. The transfer robot 701 removes the current transformer body 100 from the conductor 403 through the clamping member 703, and transfers the current transformer body 100 to the conveying assembly 2 outside the base 3, and the conveying assembly 2 transports the current transformer body 100 to the next process.

[0113] Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An error test detection platform, the error test detection platform is used for error test detection of a current transformer body (100), comprising a body (1), characterized in that: A machine base (3) is provided in the middle of the machine body (1), transport components (2) are provided on both sides of the machine base (3), a detection component (4) is provided on the top of the machine base (3), and a transfer component (7) is provided on the outside of the detection component (4), and the transfer component (7) is used to transport the current transformer body (100) to the detection component (4); The detection component (4) comprises a connecting piece (401) symmetrically arranged on the machine base (3), the top of each connecting piece (401) is provided with a conducting clamp (402), a conductor (403) is commonly connected between the conducting clamps (402), a placement seat (404) distributed in an array is provided below the conductor (403), the placement seat (404) is provided with symmetrically distributed plug connectors (405), and an adjustment component (5) is provided at the connection between the plug connector (405) and the placement seat (404); A mounting assembly (8) is provided at the bottom of the current transformer body (100), the mounting assembly (8) comprising a mounting seat (801) connected to the current transformer body (100), the mounting seat (801) being provided with symmetrically distributed connecting terminals (802), one end of the connecting terminal (802) being electrically connected to the current transformer body (100) via a connecting wire (803), and the other end of the connecting terminal (802) being electrically connected to a plug connector (405) via a connecting assembly; The connecting component comprises an empty slot (804) formed on the mounting seat (801), wherein symmetrically distributed contact pieces (805) are provided inside the empty slot (804), and the contact pieces (805) are electrically connected to the connecting terminals (802); An arcuate surface (8051) is provided on one side opposite to the two contact members (805), the arcuate surface (8051) is in contact with the plug connector (405), and an elastic limiting portion (806) is provided on one side of the two contact members (805) away from each other, and one end of the elastic limiting portion (806) away from the contact member (805) is connected to the empty slot (804); The adjustment component (5) comprises a movable groove (501) formed on the placement seat (404); the movable groove (501) is internally limited and slidably connected to a sliding plate (502); a ring member (503) is provided on the top of the sliding plate (502); the inner ring of the ring member (503) is in contact with the plug connector (405); and the plug connector (405) is provided in the middle of the sliding plate (502); An elastic member (505) is provided at the bottom of the sliding plate (502), one end of the elastic member (505) is connected to the bottom of the sliding plate (502), and the other end of the elastic member (505) is connected to the bottom of the movable groove (501). A connecting wire (507) is provided at the bottom of the sliding plate (502), one end of the connecting wire (507) is fixedly connected to the plug connector (405), and the other end of the connecting wire (507) passes through the movable groove (501) and is connected to an external detection instrument.

2. The error test detection platform according to claim 1, characterized in that: A through hole (504) is provided at the top of the movable groove (501), the through hole (504) is located directly above the annular member (503), and the diameter of the through hole (504) is greater than the diameter of the plug connector (405); A threading hole (506) is provided at the bottom of the movable groove (501), and the threading hole (506) is located directly below the elastic member (505). The diameter of the threading hole (506) is larger than the diameter of the connecting wire (507).

3. The error test detection platform according to claim 2, characterized in that: A rotating assembly (6) is provided at the bottom of the placement seat (404), and the rotating assembly (6) comprises a connecting seat (601), the connecting seat (601) is rotatably connected to the machine base (3), one end of the connecting seat (601) is fixedly connected to the bottom of the placement seat (404), and the other end of the connecting seat (601) is fixedly connected to a rotating gear (602), the rotating gear (602) is located inside the machine base (3), a driving gear (603) is provided on the outside of the rotating gear (602), the driving gear (603) is meshed with the rotating gear (602), and a driving motor is provided at the end of the driving gear (603).

4. The error test detection platform according to claim 3, characterized in that: The transport assembly (2) comprises a conveying track (201) arranged on the top of the machine body (1), a symmetrically distributed transmission belt (202) is arranged inside the conveying track (201), a driving device (203) for driving the transmission belt (202) is arranged at the end of the conveying track (201), and a lifting member (204) is arranged in the middle of the conveying track (201); The lifting member (204) comprises a lifting cylinder (2042) arranged at the top of the machine body (1); a lifting plate (2041) is provided at the output end of the lifting cylinder (2042); and the lifting plate (2041) does not contact the transmission belt (202).

5. The error test detection platform according to claim 4, characterized in that: The transfer assembly (7) comprises a transfer robot (701), the transfer robot (701) being arranged on the top of the machine body (1), a transfer frame (702) being arranged at the output end of the transfer robot (701), a clamping member (703) distributed in an array being arranged at the bottom of the transfer frame (702), the clamping member (703) being used to clamp and transfer the current transformer body (100), and when the transfer frame (702) is located directly above the conductor (403), the position of the clamping member (703) corresponds to the position of the placement seat (404).

6. The error test detection platform according to claim 5, characterized in that: The clamping member (703) comprises a clamping seat (7031), the clamping seat (7031) is arranged at the bottom of the transport frame (702), the bottom of the clamping seat (7031) is provided with symmetrically distributed clamping parts (7032), and the opposite sides of the two clamping parts (7032) are provided with array-distributed pressure sensors; An elastic telescopic portion (7033) is provided on the top of the clamping portion (7032), and two ends of the elastic telescopic portion (7033) are respectively connected to opposite sides of the two clamping portions (7032).

7. A current transformer applied to the error test detection platform as claimed in claim 6, wherein the current transformer is a current transformer body (100), wherein the current transformer body (100) comprises a transformer body (1001), a fixed terminal (1002) is provided on the outer side of the transformer body (1001), and a connecting plate (1003) is provided on the bottom of the transformer body (1001).

8. A detection method for an error test detection platform, wherein the detection method uses the error test detection platform according to claim 6 to perform an error test detection on the current transformer according to claim 7, characterized in that: The detection method comprises the following steps: S1, the driving device (203) drives the transmission belt (202) to operate, the transmission belt (202) transports the current transformer body (100) to the position where the machine base (3) is located, the transmission belt (202) stops operating, and the lifting member (204) is controlled to lift the mounting seat (801), so that the mounting seat (801) is out of contact with the transmission belt (202); S2, controlling the clamping part (7032) on the transfer robot (701) to clamp the current transformer body (100), and moving the current transformer body (100) from the transport component (2) to the detection component (4), and having the detection component (4) perform error detection on the current transformer body (100); S3, when the clamping part (7032) clamps the current transformer body (100), it simultaneously determines whether the current transformer body (100) is in a deflected state, and controls the rotating component (6) to drive the placement seat (404) to deflect according to the detection result, so that the plug connector (405) on the placement seat (404) can be connected to the contact piece (805); S4. After the transfer robot (701) transfers the current transformer body (100) from the transport component (2) to the detection component (4), the conductor (403) passes through the middle of the current transformer body (100), the mounting seat (801) at the bottom of the current transformer body (100) is located on the top of the placement seat (404), and the plug connector (405) on the placement seat (404) is connected to the contact piece (805) inside the empty slot (804); S5. The transfer robot (701) removes the current transformer body (100) from the conductor (403) through the clamping member (703), and transfers the current transformer body (100) to the transport assembly (2) outside the base (3), and the transport assembly (2) transports the current transformer body (100) to the next process.

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