Pulse transformer rapid short circuit device
By designing a pulse transformer quick short-circuit device and using a test hook and test wire to clamp the pins, the problem of the pulse transformer being easily loose and broken is solved, an efficient and safe wiring process is achieved, and the risk of equipment damage is reduced.
Patent Information
- Application Number
- CN202422099873.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The pulse short-circuit method in the existing technology is prone to loosening and breaking, causing damage to the equipment. The operation is cumbersome and inefficient, and there is a risk of short circuit.
A pulse-to-quick short-circuit device is designed. It uses a test hook and a test line, and clamps the pins with fixed and movable clips to simplify the wiring process and ensure a stable connection.
It improves the safety and reliability of wiring, shortens wiring time, reduces the risk of equipment damage, and simplifies the operating process.
Smart Images
Figure CN223413337U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pulse-to-quick short-circuit device. Background Art
[0002] During generator excitation system maintenance, the insulation condition of the power cabinet's pulse transformer must be checked. To prevent high voltage damage to the transformer during insulation testing, testers must short-circuit and ground the low-voltage side of the pulse transformer when measuring high-voltage insulation, and short-circuit and ground the high-voltage side when measuring low-voltage insulation. Figure 1 There are six pulse transformers in a power cabinet, with the low-voltage side in the middle and the high-voltage side on both sides, each connected to 12 wires. The short-circuiting method is to loosen the secondary wire pins on the high / low-voltage side of the pulse transformer until a part is exposed and then tighten it, and then use a fuse to wrap around the exposed metal part of the pin one by one.
[0003] This short-circuiting method has the following three disadvantages:
[0004] Disadvantage 1: The fuse winding is unstable and easy to loosen, and it is easy to break after multiple windings, which will cause a short circuit between one or more pins and cause failure. During the test, high voltage is directly applied to the corresponding pulse transformer, causing damage to the pulse transformer.
[0005] Disadvantage 2: There are many pulse transformers and the cabinet is deep. Winding the fuses one by one is tedious, time-consuming and inefficient.
[0006] Disadvantage 3: The large winding range can easily cause messy wiring. If the fuse is accidentally connected to other components in the cabinet, it will cause a short circuit and lead to serious consequences. Utility Model Content
[0007] The purpose of the utility model is to provide a pulse transformer quick short-circuiting device, which is used to solve the problem that the fuse of the existing short-circuiting method is easy to loosen, break or overlap other components in the cabinet, which easily leads to damage to the pulse transformer, short circuit in other parts of the cabinet and low efficiency.
[0008] In order to solve the above problems, the technical solution of the utility model is:
[0009] A pulse transformer quick short-circuit device comprises a neutral line bar and a plurality of test lines, wherein one end of the plurality of test lines is connected to the neutral line bar, and the other end of each test line is respectively connected to a test hook, and the test hook is connected to a pulse transformer pin.
[0010] The test hook includes a conductive rod, one end of which is fixedly connected to a fixed clip, and the other end of the conductive rod is fixedly connected to a telescopic cap and a wiring tube, a spring and a push rod are provided inside the telescopic cap, one end of the push rod is fixedly connected to the movable clip, and the other end of the push rod rests on the spring, and one end of the test wire is fixedly connected to the wiring tube.
[0011] The opposite ends of the fixed clip and the movable clip are both provided with chamfers.
[0012] The opposite ends of the fixed clip and the movable clip are both provided with triangular or arc-shaped notches.
[0013] The conductive rod, fixed clip, movable clip, telescopic cap and wiring tube are all made of brass.
[0014] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention optimizes the tedious steps of winding the fuse to achieve short-circuiting, making it convenient for maintenance personnel to simply and quickly short-circuit the high and low voltage sides of the pulse transformer, and the wiring is simple, beautiful, safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present invention will be further described below with reference to the accompanying drawings:
[0016] Figure 1 This is a schematic diagram of the structure of the utility model.
[0017] Figure 2 The three-dimensional structural diagram of the utility model is as follows:
[0018] Figure 3 This is a schematic diagram of the main structure of the present utility model.
[0019] In the figure: test hook 1, test line 2, pulse transformer 3, neutral line bar 4, pin 5, fixed clip 11, movable clip 12, push rod 13, telescopic cap 14, wiring tube 15, conductive rod 16, spring 17. DETAILED DESCRIPTION
[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.
[0021] like Figures 1 to 3 As shown, a pulse transformer quick short-circuit device includes a neutral line bus 4 and 12 test lines 2. One end of the 12 test lines 2 is connected to the neutral line bus 4, and the other end of each test line 2 is connected to a test hook 1, which is connected to the pulse transformer 3 pin 5.
[0022] Short-circuit the tail ends of all 12 test wires 2 on the neutral wire row 4. When conducting an insulation test, taking the measurement of the insulation on the high-voltage side of the pulse transformer 3 as an example, completely disconnect the 12 wires on the low-voltage side of the pulse transformer 3, loosen the 12 wires on the high-voltage side, and expose a part of the pins 5 at the wire ends. Then tighten them, and then connect the test hook 1 at the head end of the 12 short-circuited test wires 2 to the metal part of the pin 5. In this way, the high-voltage side of the pulse transformer 3 is short-circuited.
[0023] Short-circuiting wiring using this device can effectively shorten wiring time, greatly reduce the risk of equipment damage caused by poor contact or overlapping short circuits, and improve test safety and reliability.
[0024] The test hook 1 includes a conductive rod 16, one end of which is fixedly connected to a fixed clip 11. A telescopic cap 14 and a wiring tube 15 are fixedly connected to the other end of the conductive rod 16. A spring 17 and a push rod 13 are located within the telescopic cap 14. One end of the push rod 13 is fixedly connected to a movable clip 12, and the other end of the push rod 13 abuts against the spring 17. One end of the test wire 2 is fixedly connected to the wiring tube 15 via soldering. When the test hook 1 is in use, the pin 5 is clamped between the fixed clip 11 and the movable clip 12, which effectively prevents the test hook 1 from detaching from the pin 5.
[0025] The thickness of the fixed clip 11 and the movable clip 12 is 1 mm. In this way, the metal part of the pin 5 only needs to be exposed by 1-2 mm to be clamped by the fixed clip 11 and the movable clip 12.
[0026] The opposite ends of the fixed clip 11 and the movable clip 12 are both provided with chamfers. The chamfers on the fixed clip 11 and the movable clip 12 form a triangular guide structure. When in use, the guide structure can be used to easily slide the pin 5 sideways between the fixed clip 11 and the movable clip 12, making it easy to use.
[0027] The fixed clip 11 and the movable clip 12 are provided with triangular or arc-shaped notches at opposite ends. The pin 5 between the fixed clip 11 and the movable clip 12 is stuck in the notch, which can effectively prevent the pin 5 from falling out of the test hook 1.
[0028] The conductive rod 16, the fixed clip 11, the movable clip 12, the telescopic cap 14 and the wiring tube 15 are all made of brass, ensuring that the test hook 1 has a good conductive effect.
[0029] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the utility model also extends to equivalent technical means that can be thought of by those skilled in the art based on the concept of the utility model.
Claims
1. A pulse-to-fast short-circuit device, characterized in that: The invention comprises a neutral line row (4) and a plurality of test lines (2), one end of the plurality of test lines (2) is connected to the neutral line row (4), and the other end of each test line (2) is respectively connected to a test hook (1), and the test hook (1) is connected to a pulse transformer (3) pin (5); the test hook (1) comprises a conductive rod (16), one end of the conductive rod (16) is fixedly connected to a fixed clip (11), and the other end of the conductive rod (16) is fixedly connected to a telescopic cap (14) and a wiring tube (15), a spring (17) and a push rod (13) are provided in the telescopic cap (14), one end of the push rod (13) is fixedly connected to the movable clip (12), and the other end of the push rod (13) abuts against the spring (17), and one end of the test line (2) is fixedly connected to the wiring tube (15).
2. The pulse-to-fast short-circuit device according to claim 1, characterized in that: The opposite ends of the fixed clip (11) and the movable clip (12) are both provided with chamfers.
3. The pulse-to-fast short-circuit device according to claim 1, characterized in that: The opposite ends of the fixed clip (11) and the movable clip (12) are both provided with triangular or arc-shaped notches.
4. The pulse-to-fast short-circuit device according to claim 1, characterized in that: The conductive rod (16), the fixed clip (11), the movable clip (12), the telescopic cap (14) and the wiring tube (15) are all made of brass.
5. The pulse-to-fast short-circuit device according to claim 1, characterized in that: The thickness of the fixed clip (11) and the movable clip (12) is 1-2 mm.