Current and voltage integrated detection device of transformer

Abstract

The invention belongs to the technical field of transformer detection, and particularly relates to a current and voltage integrated detection device of a transformer. The detection cabinet is internally provided with detection accessories for current and voltage detection; the plurality of clamping devices are movably arranged in the detection channel, and the clamping devices are used for being connected with a high-voltage wiring terminal or a low-voltage wiring terminal of the transformer and electrically connecting the detection accessory with the transformer; a load assembly; and the position adjusting mechanism is arranged on the side wall of the detection channel and is connected with the clamping device so as to control the movement of the clamping device. According to the scheme, the device automatically transports and detects the transformer, and the detection efficiency is improved; the built-in switch structure of the detection cabinet can realize the change of a detection circuit in an electric control mode, so that the detection of current and voltage performances is facilitated, automatic switching can be realized, and before the detection is completed, the operation of manually disconnecting and connecting a cable is not needed, so that the personal electric shock risk and the detection error caused by manual errors are reduced.

Description

Technical Field

[0001] This invention belongs to the field of transformer testing technology, specifically relating to an integrated current and voltage testing device for transformers. Background Technology

[0002] Comprehensive testing and calibration of voltage and current-related performance of 10kV transformers at the factory are mandatory industrial requirements and regulations to ensure product qualification, grid connection safety, and reliable operation. Testing verifies the transformer's design compliance, performance stability, and safety boundaries under rated / limiting voltage and current conditions, preventing substandard products from entering the power system and causing grid failures, equipment damage, or even personal injury accidents. It confirms that the product meets the design requirements for voltage ramp-up and current adaptation, identifies hidden defects in manufacturing, and provides a fundamental technical basis for subsequent grid connection and operation and maintenance.

[0003] In existing technologies, testing a 10kV transformer typically involves transporting the testing equipment to the transformer site, connecting the equipment to the transformer, and then measuring the transformer's voltage and current. Because the current and voltage detection devices differ, the cable wiring methods also differ, requiring a high level of experience from the testing personnel. In batch testing scenarios, this approach is inefficient. Furthermore, the repeated switching on and off of power and disconnecting and reconnecting cables is time-consuming, labor-intensive, and prone to human error, posing personal safety risks. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this solution provides an integrated current and voltage detection device for transformers.

[0005] The technical solution adopted in this invention is as follows: A transformer current and voltage integrated detection device, comprising: Multiple conveyors are arranged and connected along the conveying direction and are used to transport transformers; The testing cabinet has a testing channel in the middle, into which the roller conveyor extends; the testing cabinet is equipped with testing accessories for current and voltage detection; the testing accessories include a high-voltage circuit breaker, a relay, a current sensor, and a voltage sensor; the top of the testing cabinet is equipped with a terminal block for connecting a 10KV power supply to introduce electrical energy into the testing cabinet. Multiple clamps are movably installed in the detection channel. The clamps are used to connect the high-voltage or low-voltage terminals of the transformer to electrically connect the detection accessories to the transformer so that the transformer can be connected to the corresponding detection circuit after switching control by the high-voltage circuit breaker and relay. The load assembly, located at the rear of the testing cabinet, includes a reactor and a resistor; the reactor and resistor are connected to the testing cabinet via cables and can be connected to the testing circuit via a high-voltage circuit breaker or a relay. The position adjustment mechanism is located on the side wall of the detection channel and is connected to the clamp to control the movement of the clamp.

[0006] Optional: A switch panel is provided on the front side of the testing cabinet, and indicator lights, switch buttons and touch screen are provided on the switch panel; the indicator lights are used to indicate the switching status of the high-voltage circuit breaker and relay, the switch buttons are used to manually control the switching action of the high-voltage circuit breaker or relay, and the touch screen is used for touch operation and display of test data.

[0007] Optional: The clamping device includes a fixed clamping plate, a clamping screw, a movable clamping plate, and a connecting post; the upper end of the fixed clamping plate is connected to the position adjustment mechanism and electrically connected to the cable detection accessory; the upper end of the movable clamping plate is hinged to the middle of the fixed clamping plate; the clamping screw is threaded to the lower part of the fixed clamping plate; limit caps are provided on both the inner and outer sides of the movable clamping plate; the connecting post passes through the oblong hole in the middle of the movable clamping plate and its two ends are connected to the two limit caps; the connecting post is also coaxially connected to the clamping screw; when the clamping screw rotates, it drives the movable clamping plate to move through the limit caps, so that the fixed clamping plate and the movable clamping plate cooperate to clamp the transformer terminals.

[0008] Optionally: The position adjustment mechanism includes an adjustment seat, a first pitch cylinder and an insulating column; the adjustment seat is fixed on the detection cabinet, one end of the insulating column is rotatably connected to the adjustment seat and the other end is connected to the clamp; one end of the first pitch cylinder is rotatably connected to the adjustment seat and the other end is rotatably connected to the middle of the insulating column, and controls the vertical swing of the insulating column.

[0009] Optional: The adjusting seat includes a fixed seat, a wedge block, a translation seat, and an adjusting screw; the fixed seat is fixedly connected to the testing cabinet, the wedge block is disposed between the fixed seat and the translation seat and its movement is controlled by the adjusting screw, so that the translation seat moves horizontally; the first pitch cylinder and the insulating column are both disposed on the translation seat.

[0010] Optionally: A straightening mechanism is provided on both sides of the detection channel; the straightening mechanism includes a straightening push plate and a straightening electric cylinder, the straightening electric cylinder is fixed on the detection cabinet, and the straightening push plate is connected to the moving end of the straightening electric cylinder; the conveyor in the detection channel is a roller conveyor, which is equipped with conveying rollers and transverse rollers; the rotation direction of the transverse rollers is perpendicular to the rotation direction of the conveying rollers, and the roller frame below the transverse rollers is connected to the ground through a scissor lift.

[0011] Optional: The clamping screws on the clamps on opposite sides of the detection channel face each other; a tightening mechanism is provided in the detection channel; the tightening mechanism includes a tightening motor and a bit; the bit is connected to the output shaft of the tightening motor; when the bit extends between the high-voltage terminal and the low-voltage terminal and is inserted into the clamping screw, it can control the rotation of the clamping screw, so that the clamps tighten or loosen the corresponding terminals.

[0012] Optionally, the tensioning mechanism further includes a transverse groove rail, a transverse lead screw, a transverse slide block, a reversing motor, a reversing platform, a reversing gear plate, and a translation module; the transverse groove rail is parallel to the arrangement direction of the high-voltage terminals; the transverse slide block is slidably engaged with the transverse groove rail and threadedly connected to the transverse lead screw; the reversing platform is rotatably connected below the transverse slide block and fixedly connected to the reversing gear plate; the gear connected to the output shaft of the reversing motor meshes with the reversing gear plate; the translation module is fixed to the bottom of the reversing platform, and the tensioning motor is installed at the moving end of the translation module.

[0013] Optional: The tensioning mechanism further includes a second pitch cylinder, a vertical swing arm, a crossbar, a rotary motor, an upper rotating arm, and a lower rotating arm; one end of the vertical swing arm is rotatably connected to the testing cabinet, and the other end is connected to the crossbar; the second pitch cylinder is used to control the vertical rotation of the vertical swing arm; the upper end of the upper rotating arm is rotatably connected to the crossbar and is controlled by the rotary motor; the upper end of the lower rotating arm is rotatably connected to the lower end of the upper rotating arm, and the lower end is rotatably connected to the transverse groove rail.

[0014] Optional: A camera is installed at the end of the translation module, the camera being oriented toward the bit.

[0015] The beneficial effects of this invention are as follows: The device of this solution adopts an automatic transformer transport method to a designated location for testing, which can effectively increase the testing efficiency in batch testing scenarios; the built-in switch structure of the testing cabinet can realize the change of the testing circuit through electronic control, so as to facilitate the separate testing of current and voltage performance, and can realize automatic switching. Before the testing is completed, there is no need for manual disconnection and reconnection of cables, reducing the risk of electric shock and testing errors caused by human error. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the integrated current and voltage detection device for the transformer in this scheme; Figure 2 This is a side view of the integrated current and voltage detection device for the transformer in this scheme; Figure 3This is a structural schematic diagram of the conveyor; Figure 4 It is a structural diagram showing the cooperation between the transformer, the position adjustment mechanism, and the tensioning mechanism; Figure 5 This is a schematic diagram of the position adjustment mechanism; Figure 6 This is a schematic diagram of the clamping device; Figure 7 This is a schematic diagram of the tensioning mechanism; Figure 8 This is a diagram showing the working structure of the tensioning mechanism and the tensioning motor.

[0018] In the diagram: 1-Reactor; 2-Conveyor; 21-Conveyor Roller; 22-Transverse Roller; 3-Detection Cabinet; 31-Touch Screen; 32-Switch Panel; 33-Indicator Light; 34-Switch Button; 35-Terminal; 4-Transformer; 41-Low Voltage Terminal; 42-High Voltage Terminal; 5-Resistor; 6-Straightening Mechanism; 61-Straightening Push Plate; 62-Straightening Cylinder; 7-Position Adjustment Mechanism; 71-Fixed Base; 72-Wedge Block; 73-Transfer Base; 74-Adjusting Screw; 75-First Pitch Cylinder; 76-Insulating Column; 8-Tightening / Loosening Mechanism; 81-Second Pitch Cylinder; 82-Vertical Swing Arm; 83-Horizontal Bar; 84-Rotation Motor; 85-Upper Rotating Arm; 86-Lower Rotating Arm; 87-Transverse Track; 88-Transverse Lead Screw; 89-Transverse Slide; 810-Reversing Motor; 811-Reversing Table; 812-Reversing Gear Plate; 813-Translation Module; 814-Tightening / Loosening Motor; 815-Screwdriver Bit; 9-Camera; 10-Clamping Device; 101-Fixed Clamping Plate; 102-Clamping Screw; 103-Modible Clamping Plate; 104-Connecting Column; 105-Limit Cap. Detailed Implementation

[0019] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0020] Example like Figures 1 to 8 As shown, this embodiment designs an integrated current and voltage detection device for transformer 4, including components such as reactor 1, conveyor 2, detection cabinet 3, transformer 4, resistor 5, straightening mechanism 6, position adjustment mechanism 7, tensioning mechanism 8, camera 9, and clamp 10.

[0021] Multiple conveyors 2 are arranged along the conveying direction, with adjacent conveyors 2 interconnected to facilitate the transport of transformer 4 through testing cabinet 3. The conveyors 2 located within the testing channel of testing cabinet 3 are roller conveyors 2, each equipped with several conveying rollers 21 and transverse rollers 22. The ends of the conveying rollers 21 are driven by chains or synchronous belts, and the rotation direction of the conveying rollers 21 is parallel to the conveying direction of transformer 4. The rotation direction of the transverse rollers 22 is perpendicular to the rotation direction of the conveying rollers, and the roller frame below the transverse rollers 22 is connected to the ground via a scissor lift. When the scissor lift rises, it causes the transverse rollers 22 to move upwards, thereby lifting transformer 4 and facilitating the adjustment of transformer 4's position in the width direction of conveyor 2.

[0022] The testing cabinet 3 has a door-shaped structure, with a testing channel in the middle. The roller conveyor 2 extends into the testing channel to facilitate the feeding of the transformer 4 into the testing channel. The transformer 4 can perform voltage testing, current testing, load performance testing, and other testing operations within the testing channel.

[0023] The testing cabinet 3 is equipped with testing accessories for current and voltage detection. These accessories include commonly used electrical components such as high-voltage circuit breakers, relays, current sensors, voltage sensors, three-phase voltage regulators, and voltage transformers. A terminal block 35 is located on the top of the testing cabinet 3 for connecting to a 10kV power supply, typically a step-up transformer 4. The 10kV power supply introduces electrical energy into the testing cabinet 3 through the terminal block 35, facilitating the testing of different performance characteristics of the transformer 4.

[0024] By controlling the switching of high-voltage circuit breakers and relays, transformer 4 is connected to different testing circuits. For example, when performing voltage ratio testing, one of the voltage performance tests: through combinations of switching actions of different high-voltage circuit breakers and relays, the output terminal of the three-phase voltage regulator (one of the testing accessories) is connected to the three-phase terminals (L1 / L2 / L3) on the primary side of transformer 4. The neutral point of the voltage regulator is grounded, and simultaneously, three-phase voltmeters are connected in parallel on the primary side to measure line voltages UAB / UBC / UCA. This also grounds the neutral point (N) of the secondary side (star connection), and voltmeters are connected in parallel on the three-phase terminals (a / b / c) on the secondary side to measure line voltages Uab / Ubc / Uca and phase voltages UaN / UbN / UcN. This facilitates the calculation of the phase / line transformation ratio. When other tests are required, the testing circuits are changed through various switches, providing conditions for automated testing.

[0025] The front side of the testing cabinet 3 is provided with a switch panel 32, on which indicator lights 33, switch buttons 34 and touch screen 31 are provided. The indicator lights 33 are used to indicate the switching status of each high-voltage circuit breaker and relay. The switch buttons 34 are used to manually control the switching action of the high-voltage circuit breaker or relay for easy manual operation. The touch screen 31 is used for touch operation and displaying test data.

[0026] Multiple clamps 10 are movably disposed within the detection channel. The number of clamps 10 is the same as the number of terminals of the transformer 4. Each clamp 10 is used to connect to the high-voltage terminal 42 or the low-voltage terminal 41 of the transformer 4 to facilitate the electrical connection between the detection accessory and the transformer 4. Thus, after switching control by the high-voltage circuit breaker and the relay, the transformer 4 is connected to the corresponding detection circuit.

[0027] The clamping device 10 includes a fixed clamping plate 101, a clamping screw 102, a movable clamping plate 103, and a connecting post 104. The upper end of the fixed clamping plate 101 is connected to the position adjustment mechanism 7 and electrically connected to the cable detection accessory. The upper end of the movable clamping plate 103 is hinged to the middle of the fixed clamping plate 101. The clamping screw 102 is threaded to the lower part of the fixed clamping plate 101. Limit caps 105 are provided on both the inner and outer sides of the movable clamping plate 103. The connecting post 104 passes through the waist-shaped hole in the middle of the movable clamping plate 103 and its two ends are connected to the two limit caps 105. The connecting post 104 is also coaxially connected to the clamping screw 102. When the clamping screw 102 rotates, it drives the movable clamping plate 103 to move through the limit caps 105, so that the fixed clamping plate 101 and the movable clamping plate 103 cooperate to clamp the terminals of the transformer 4. The clamping screw 102 has a hexagonal prism-shaped through hole or blind hole at its center. When the hexagonal prism-shaped bit 815 is inserted into the through hole or blind hole, it can drive the clamping screw 102 to rotate. Furthermore, the axial movement of the clamping screw 102 does not affect the horizontal position of the bit 815. When the clamping screw 102 is loosened, the inner limit cap 105 pushes the movable clamping plate 103 to rotate outward, thereby loosening the terminals of the transformer 4. When the clamping screw 102 is tightened, the outer limit cap 105 pushes the movable clamping plate 103 to rotate inward, thereby cooperating with the fixed clamping plate 101 to clamp the terminals of the transformer 4.

[0028] The load assembly is located at the rear of the test cabinet 3 and includes a reactor 1 and a resistor 5. The reactor 1 and the resistor 5 are connected to the test cabinet 3 via cables and can be connected to the test circuit via a high-voltage circuit breaker or a relay to facilitate load testing.

[0029] The position adjustment mechanism 7 is located on the side wall of the detection channel and is connected to the clamp 10. The position adjustment mechanism 7 is used to drive the clamp 10 to move, so that the clamp 10 can contact or separate from the terminals of the transformer 4.

[0030] The position adjustment mechanism 7 includes an adjustment seat, a first pitch cylinder 75, an insulating column 76, a fixed seat 71, a wedge block 72, a translation seat 73, and an adjusting screw 74. The adjustment seat is fixed on the testing cabinet 3. One end of the insulating column 76 is rotatably connected to the adjustment seat, and the other end is connected to the clamp 10. One end of the first pitch cylinder 75 is rotatably connected to the adjustment seat, and the other end is rotatably connected to the middle of the insulating column 76, controlling the vertical swing of the insulating column 76. The fixed seat 71 is fixedly connected to the testing cabinet 3. The wedge block 72 is disposed between the fixed seat 71 and the translation seat 73 and is controlled to move by the adjusting screw 74, causing the translation seat 73 to move horizontally. The first pitch cylinder 75 and the insulating column 76 are both disposed on the translation seat 73. When the first pitch cylinder 75 extends, it can control the insulating column 76 to rotate downward, thereby pushing the clamp 10 downward to the terminal of the transformer 4; conversely, this controls the clamp 10 to move upward and away from the terminal of the transformer 4. When the adjusting screw 74 rotates, it controls the wedge block 72 to move up or down. Since the wedge block 72 engages with the fixed seat 71 and the sliding seat 73 on inclined surfaces, it drives the sliding seat 73 to move horizontally. The sliding seat 73 slides horizontally with the guide rod fixed on the fixed seat 71; the guide rod passes through the oblong hole on the wedge block 72. Simultaneously, the T-shaped protrusions on both sides of the wedge block 72 engage with the T-shaped grooves on the fixed seat 71 and the sliding seat 73.

[0031] A straightening mechanism 6 is provided on both sides of the detection channel. The straightening mechanism 6 includes a straightening push plate 61 and a straightening electric cylinder 62. The straightening electric cylinder 62 is fixed on the detection cabinet 3, and the straightening push plate 61 is connected to the moving end of the straightening electric cylinder 62. A metal contact piece can be connected to the straightening push plate 61 and a ground wire can be connected. When the straightening push plate 61 presses against the transformer 4 housing, it can ground the transformer 4 housing. When the transverse roller 22 pushes the transformer 4 upward, the straightening electric cylinder 62 extends and pushes the transformer 4 to move through the straightening push plate 61, thereby ensuring that the arrangement direction of the three high-voltage terminals 42 of the transformer 4 is parallel to the conveying direction of the conveyor 2, and at the same time changing the position of the transformer 4 in the width direction of the conveyor 2, so as to facilitate the alignment of the clamp 10 with the terminals of the transformer 4.

[0032] The clamping screws 102 on the clamps 10 on opposite sides of the detection channel face each other; a tensioning mechanism 8 is provided in the detection channel.

[0033] The tensioning mechanism 8 includes components such as a tensioning motor 814, a bit 815, a transverse groove rail 87, a transverse lead screw 88, a transverse slide 89, a reversing motor 810, a reversing table 811, a reversing gear plate 812, a translation module 813, a second pitch cylinder 81, a vertical swing arm 82, a crossbar 83, a rotation motor 84, an upper rotating arm 85, and a lower rotating arm 86.

[0034] The bit 815 is connected to the output shaft of the tension motor 814. When the tension motor 814 rotates in the forward or reverse direction, it can drive the bit 815 to rotate in the forward or reverse direction. When the bit 815 extends between the high-voltage terminal 42 and the low-voltage terminal 41, the bit 815 can be inserted into the blind hole or through hole of the clamping screw 102, thereby controlling the rotation of the clamping screw 102, so that the clamping device 10 clamps or releases the corresponding terminal.

[0035] The transverse groove 87 is parallel to the arrangement direction of the high-voltage terminals 42; the transverse slide 89 is slidably engaged with the transverse groove 87 and threadedly connected to the transverse lead screw 88. When the transverse lead screw 88 rotates, the position of the transverse slide 89 can be adjusted, so that the bit 815 can reach each high-voltage terminal 42 or each low-voltage terminal 41 in sequence.

[0036] The reversing table 811 is rotatably connected below the transverse slide 89 and fixedly connected to the reversing gear 812; the gear connected to the output shaft of the reversing motor 810 meshes with the reversing gear 812. When the reversing motor 810 rotates, it can drive the reversing gear 812 and the reversing table 811 to rotate horizontally, thereby changing the orientation of the bit 815 from the side facing the high voltage terminal 42 to the side facing the low voltage terminal 41.

[0037] The translation module 813 is fixed to the bottom of the reversing table 811, and the tensioning motor 814 is installed on the moving end of the translation module 813. The translation module 813 can control the tensioning motor 814 to move horizontally, thereby facilitating the insertion or removal of the bit 815 into or out of the blind hole or through hole of the clamping screw 102.

[0038] One end of the vertical swing arm 82 is rotatably connected to the detection cabinet 3, and the other end is connected to the crossbar 83. A vertical swing arm 82 is provided at each end of the crossbar 83. The crossbar 83 can be made of angle steel and is parallel to the detection channel of the transformer 4. The second pitch cylinder 81 can control the vertical rotation of the vertical swing arm 82, thereby controlling the crossbar 83 to rotate above the transformer 4 or to the inner wall of the detection channel. The upper end of the upper rotating arm 85 is rotatably connected to the crossbar 83. The output shaft of the rotating motor 84 is connected to the upper rotating shaft of the upper rotating arm 85 through a reduction gear set, thus controlling the rotation of the upper rotating arm 85 when the rotating motor 84 is energized. The upper end of the lower rotating arm 86 is rotatably connected to the lower end of the upper rotating arm 85, and the lower end is rotatably connected to the transverse groove rail 87. The transverse groove rail 87 is parallel to the crossbar 83. When the upper rotating arm 85 rotates, it can drive the lower rotating arm 86 to rotate, thereby controlling the vertical lifting and lowering of the transverse groove rail 87, so that the bit 815 can rise from the height of the low-voltage terminal 41 to the height of the high-voltage terminal 42.

[0039] A camera 9 is installed at the end of the translation module 813, and the camera 9 is facing the bit 815 so as to identify the position of the bit 815 and thus facilitate the adjustment of the position of the bit 815.

[0040] When using the integrated current and voltage detection device for transformer 4 in this embodiment, the following steps are included: 1. Place transformer 4 on conveyor 2, and conveyor 2 will transport transformer 4 to the testing channel.

[0041] 2. The straightening cylinders 62 of the straightening mechanism 6 on both sides of the detection channel extend simultaneously, straightening the transformer 4 through the straightening push plate 61, and at the same time grounding the outer shell of the transformer 4 through the metal contact piece.

[0042] 4. The position adjustment mechanism 7 on both sides of the detection channel controls the insulating column 76 to rotate downward, so that the corresponding terminals of the clamp 10 abut against each other; then the adjustment screw 74 is controlled to rotate, so that the clamp 10 only moves horizontally, so that the fixed clamp 101 abuts against the terminal horizontally. 5. The second pitch cylinder 81 controls the vertical swing arm 82 to rotate downwards to above the transformer 4; then, the rotating motor 84 controls the upper rotating arm 85 and the lower rotating arm 86 to rotate, thereby changing the vertical height of the transverse groove rail 87; ensuring that when the clamp 10 at the low-voltage terminal 41 is fixed, the height of the bit 815 is consistent with that of the low-voltage terminal 41; and when the clamp 10 at the high-voltage terminal 42 is fixed, the height of the transverse groove rail 87 is adjusted again so that the height of the bit 815 is consistent with that of the high-voltage terminal 42.

[0043] 5. After the bit 815 is aligned with the clamping screw, the translation module 813 inserts the bit 815 into the blind or through hole of the clamping screw. Then, the tensioning motor 814 controls the clamping screw to rotate, allowing the clamping device 10 to clamp the terminal. After completion, the bit 815 is removed from the hole of the clamping screw, and then the transverse slide 89 is moved by the transverse lead screw 88 to move the bit 815 to another terminal, thus clamping the clamping device 10 again.

[0044] 6. After the low-voltage terminal 41 is clamped by the corresponding clamp 10, the commutator motor 810 controls the rotary table and the tensioning motor 814 to rotate 180 degrees, and the rotary motor 84 controls the bit 815 to rise vertically to the same height as the high-voltage terminal 42. Then, the bit 815 is used to clamp the clamp 10 at each high-voltage terminal 42.

[0045] 7. After the clamp 10 is connected to the terminal block, the tensioning mechanism 8 is reset; the PLC or industrial computer in the test cabinet 3 controls the circuit breaker or relay, so that the transformer 4 is connected to different test circuits according to the test program and records the test data such as current and voltage.

[0046] 8. After the transformer 4 is tested, the tightening mechanism 8 loosens each clamp 10. After the clamp 10 is reset, the conveyor 2 transports the transformer 4 to the back of the testing channel, and then another transformer 4 is sent into the testing channel for testing.

[0047] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A transformer current and voltage integrated detection device, characterized in that: include: Multiple conveyors (2) are arranged and connected along the conveying direction and used to convey transformers (4); The testing cabinet (3) has a testing channel in the middle, and the roller conveyor (2) extends into the testing channel; the testing cabinet (3) is equipped with testing accessories for current and voltage detection; the testing accessories include a high-voltage circuit breaker, a relay, a current sensor and a voltage sensor; the top of the testing cabinet (3) is equipped with a terminal block (35), which is used to connect a 10KV power supply to introduce electrical energy into the testing cabinet (3); Multiple clamps (10) are movably installed in the detection channel. The clamps (10) are used to connect the high voltage terminal (42) or low voltage terminal (41) of the transformer to electrically connect the detection accessory to the transformer (4) so ​​that the transformer (4) can be connected to the corresponding detection circuit after switching control by the high voltage circuit breaker and relay. The load assembly is located at the rear of the test cabinet (3) and includes a reactor (1) and a resistor (5); the reactor (1) and the resistor (5) are connected to the test cabinet (3) via cables and can be connected to the test circuit via a high-voltage circuit breaker or a relay. The position adjustment mechanism (7) is located on the side wall of the detection channel and is connected to the clamp (10) to control the movement of the clamp (10).

2. The transformer current and voltage integrated detection device according to claim 1, characterized in that: The front side of the testing cabinet (3) is provided with a switch panel (32), on which are provided an indicator light (33), a switch button (34) and a touch screen (31); the indicator light (33) is used to indicate the switching status of the high voltage circuit breaker and the relay, the switch button (34) is used to manually control the switching action of the high voltage circuit breaker or the relay, and the touch screen (31) is used for touch operation and display of test data.

3. The transformer current and voltage integrated detection device according to claim 1, characterized in that: The clamp (10) includes a fixed clamping plate (101), a clamping screw (102), a movable clamping plate (103), and a connecting post (104); the upper end of the fixed clamping plate (101) is connected to the position adjustment mechanism (7) and electrically connected to the cable detection accessory; the upper end of the movable clamping plate (103) is hinged to the middle of the fixed clamping plate (101); the clamping screw (102) is threaded to the lower part of the fixed clamping plate (101); the movable clamping plate (103) Limit caps (105) are provided on both the inner and outer sides. The connecting post (104) passes through the waist-shaped hole in the middle of the movable clamping plate (103) and its two ends are connected to the two limit caps (105). The connecting post (104) is also coaxially connected to the clamping screw (102). When the clamping screw (102) rotates, it drives the movable clamping plate (103) to move through the limit caps (105) so that the fixed clamping plate (101) and the movable clamping plate (103) cooperate to clamp the terminals of the transformer.

4. The transformer current and voltage integrated detection device according to claim 3, characterized in that: The position adjustment mechanism (7) includes an adjustment seat, a first pitch cylinder (75) and an insulating column (76); the adjustment seat is fixed on the detection cabinet (3), one end of the insulating column (76) is rotatably connected to the adjustment seat and the other end is connected to the clamp (10); one end of the first pitch cylinder (75) is rotatably connected to the adjustment seat and the other end is rotatably connected to the middle part of the insulating column (76), and controls the vertical swing of the insulating column (76).

5. The transformer current and voltage integrated detection device according to claim 4, characterized in that: The adjusting seat includes a fixed seat (71), a wedge block (72), a translation seat (73), and an adjusting screw (74); the fixed seat (71) is fixedly connected to the testing cabinet (3), the wedge block (72) is set between the fixed seat (71) and the translation seat (73) and is controlled to move by the adjusting screw (74) so ​​that the translation seat (73) moves horizontally; the first pitch cylinder (75) and the insulating column (76) are both set on the translation seat (73).

6. The transformer current and voltage integrated detection device according to claim 3, characterized in that: A straightening mechanism (6) is provided on both sides of the detection channel; the straightening mechanism (6) includes a straightening push plate (61) and a straightening electric cylinder (62). The straightening electric cylinder (62) is fixed on the detection cabinet (3), and the straightening push plate (61) is connected to the moving end of the straightening electric cylinder (62). The conveyor (2) in the detection channel is a roller conveyor (2). The roller conveyor (2) is provided with a conveying roller (21) and a transverse roller (22). The rotation direction of the transverse roller (22) is perpendicular to the rotation direction of the conveying roller, and the roller frame below the transverse roller (22) is connected to the ground through a scissor lift.

7. The transformer current and voltage integrated detection device according to claim 3, characterized in that: The clamping screws (102) on the clamps (10) on opposite sides of the detection channel face each other; a tensioning mechanism (8) is provided in the detection channel; the tensioning mechanism (8) includes a tensioning motor (814) and a bit (815); the bit (815) is connected to the output shaft of the tensioning motor (814); when the bit (815) extends between the high voltage terminal (42) and the low voltage terminal (41) and is inserted into the clamping screw (102), it can control the rotation of the clamping screw (102) so that the clamps (10) clamp or release the corresponding terminals.

8. The transformer current and voltage integrated detection device according to claim 7, characterized in that: The tensioning mechanism (8) further includes a transverse groove (87), a transverse lead screw (88), a transverse slide (89), a reversing motor (810), a reversing platform (811), a reversing gear (812), and a translation module (813); the transverse groove (87) is parallel to the arrangement direction of the high-voltage terminals (42); the transverse slide (89) is slidably engaged with the transverse groove (87) and threadedly connected to the transverse lead screw (88); the reversing platform (811) is rotatably connected below the transverse slide (89) and fixedly connected to the reversing gear (812); the gear connected to the output shaft of the reversing motor (810) meshes with the reversing gear (812); the translation module (813) is fixed at the bottom of the reversing platform (811), and the tensioning motor (814) is installed at the moving end of the translation module (813).

9. The transformer current and voltage integrated detection device according to claim 8, characterized in that: The tensioning mechanism (8) also includes a second pitch cylinder (81), a vertical swing arm (82), a crossbar (83), a rotary motor (84), an upper rotating arm (85), and a lower rotating arm (86); one end of the vertical swing arm (82) is rotatably connected to the detection cabinet (3), and the other end is connected to the crossbar (83); the second pitch cylinder (81) is used to control the vertical rotation of the vertical swing arm (82); the upper end of the upper rotating arm (85) is rotatably connected to the crossbar (83), and the rotation is controlled by the rotary motor (84); the upper end of the lower rotating arm (86) is rotatably connected to the lower end of the upper rotating arm (85), and the lower end is rotatably connected to the transverse groove rail (87).

10. The transformer current and voltage integrated detection device according to claim 8, characterized in that: A camera (9) is installed at the end of the translation module (813), and the camera (9) is facing the bit (815).

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