Capacitive voltage transformer test wiring device

Abstract

The utility model discloses a capacitor voltage transformer test wiring device, which comprises a tester body, a connecting plug, a test wire, a joining block and a test probe, a moving block is sleeved on the joining block, a ball is rotatably embedded on the moving block and is in contact with a clamping frame, and two sides of the bottom end of the clamping frame are fixedly connected with support plates. The supporting plate is rotatably connected with an adjusting rod, the two sides, away from each other, of the adjusting rod are in threaded connection with clamping plates, the opposite sides of the two clamping plates are in glue connection with cushion blocks, a limiting groove is formed in the clamping frame and makes contact with the ball, through holes are evenly formed in the clamping frame, a positioning rod is inserted into one through hole, and a moving block is inserted into the positioning rod. According to the utility model, the clamping plates which can move relatively are arranged to clamp the capacitor, and then the movable test probe is matched with the positioning rod to plug the movable block so as to limit the movable block, so that the test probe is kept to be on the upper phase of the capacitor, the monitoring process is simplified, and the monitoring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power auxiliary wiring, in particular to a capacitive voltage transformer test wiring device. Background Art

[0002] Capacitive voltage transformer is an important power system measurement equipment. Through the voltage dividing effect of capacitors, using series capacitors for voltage division, and reducing and isolating through electromagnetic transformers, it can convert the voltage signal of the high-voltage power system into a relatively small voltage signal, which is easy to measure and monitor. In the process of wiring detection, clamps or probes are usually used for detection, and the probes have higher precision and provide more accurate electrical connections.

[0003] According to the Chinese patent publication number CN212514983U, "A Capacitive Voltage Transformer Test Wiring Device", it mainly describes that by adding a suspension device to the high-voltage insulating rod, when the capacitor flange surface is connected to the test line, the clamp or open hoop is directly connected to the flange, the test line is connected through the test wiring hole, and the test line is fixed between the two transformers. The open hoop is wound with a steel wire with a diameter of 5mm, and both ends of the open hoop are turned outward to form a flange. The open hoop made of steel wire replaces the traditional hook fixing method. The flange design can improve the stability and operability of the wiring, increase the contact surface, and improve the elasticity of the open hoop; and the open jaw structure can be more easily aligned before contacting the metal flange. During the detection process, it is necessary to manually or machine control the probe to keep in contact with the capacitor. During the detection, it is necessary to keep the probe connected to the capacitor while observing the detection data, which makes the detection more troublesome.

[0004] Therefore, a capacitive voltage transformer test wiring device is proposed to solve the problem that during the detection process, the probe needs to be manually or machine-controlled to keep in contact with the capacitor. During the detection, it is necessary to keep the probe and the capacitor connected while observing the detection data, which leads to troublesome detection. Utility Model Content

[0005] The technical problem to be solved by the utility model is as follows: during the detection process, the probe needs to be controlled manually or by machine to keep in contact with the capacitor. During the detection, the probe needs to be connected to the capacitor while observing the detection data, which leads to troublesome problems during the detection. Therefore, a capacitive voltage transformer test wiring device is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a capacitive voltage transformer test wiring device, including a tester body, a connecting plug, a test line, a connecting block and a test probe, the connecting block is sleeved with a moving block, a spherical ball is rotatably embedded in the moving block and the spherical ball contacts a card frame, both sides of the bottom end of the card frame are fixedly connected with support plates, an adjusting rod is rotatably connected to the support plate, both sides of the adjusting rod that are far away from each other are threadedly connected with clamping plates, and the opposite sides of the two clamping plates are glued with pads.

[0007] As a preferred technical solution of the utility model, a limiting groove is provided in the card frame, and the limiting groove contacts the sphere. By arranging the limiting groove to cooperate with the sphere, the moving block can move in a straight line.

[0008] As a preferred technical solution of the utility model, through holes are evenly opened on the card frame, a positioning rod is inserted into one of the through holes, and the positioning rod is inserted into the moving block. By setting the positioning rod and the through hole, the moving block can be limited, thereby keeping the test probe at one point.

[0009] As a preferred technical solution of the utility model, handles are fixedly connected to both sides of the moving block, and anti-slip grooves are provided on the handles. By providing the handles, the position of the test probe can be moved conveniently.

[0010] As a preferred technical solution of the utility model, a spring rod is inserted into one side of the movable block, the end of the spring rod is fixedly connected with a stopper and the stopper is in contact with the connecting block. By setting the spring rod and the stopper, the connecting block can be limited, thereby achieving the benefit of facilitating the installation of the test probe.

[0011] The utility model has the following advantages: the capacitor is clamped by arranging a relatively movable clamping plate, and then the movable test probe is inserted into the moving block through the positioning rod to achieve the limitation of the moving block, so as to keep the test probe and the capacitor in phase, simplify the monitoring process and improve the monitoring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a capacitive voltage transformer test wiring device according to a preferred embodiment of the utility model;

[0013] Figure 2 It is a schematic diagram of a cross-sectional structure of a capacitive voltage transformer test wiring device in a preferred embodiment of the utility model, viewed from the side at a card frame;

[0014] Figure 3 It is a schematic diagram of the enlarged structure of location A of a capacitive voltage transformer test wiring device in a preferred embodiment of the utility model.

[0015] Explanation of the accompanying reference numerals: 1. Tester body; 2. Connecting plug; 3. Test line; 4. Connecting block; 5. Test probe; 6. Moving block; 7. Spring rod; 8. Ball; 9. Card frame; 10. Support plate; 11. Adjusting rod; 12. Clamp; 13. Limiting groove; 14. Through hole; 15. Positioning rod; 16. Handle; 17. Stop block. DETAILED DESCRIPTION

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Please refer to Figure 1-3 A capacitive voltage transformer test wiring device shown in the figure comprises a tester body 1, a connecting plug 2, a test line 3, a connecting block 4 and a test probe 5. The tester body 1 is a capacitive voltage transformer, which can detect capacitors in conjunction with the connecting plug 2, the test line 3, the connecting block 4 and the test probe 5. A moving block 6 is sleeved on the connecting block 4. A sphere 8 is rotatably embedded in the moving block 6 and the sphere 8 contacts a clamping frame 9. By arranging the sphere 8, the friction between the moving block 6 and the clamping frame 9 is reduced. Support plates 10 are fixedly connected to both sides of the bottom end of the clamping frame 9. An adjusting rod 11 is rotatably connected to the support plate 10. The adjusting rod 11 is actually a bidirectional screw. Clamps 12 are threadedly connected to both sides of the adjusting rod 11 that are away from each other. Pads are glued to the opposite sides of the two clamps 12. Rotating the adjusting rod 11 can make the clamps 12 move relatively and clamped on one side of the capacitor.

[0018] The ball 8 contacts the limiting groove 13 , and the limiting groove 13 is located in the clamping frame 9 . By providing the limiting groove 13 , the linear movement of the moving block 6 can be maintained, while reducing the friction between the moving block 6 and the clamping frame 9 .

[0019] Among them, a positioning rod 15 is inserted into the movable block 6, and the positioning rod 15 is inserted into one of the through holes 14. The through holes 14 are evenly located on the card frame 9. By setting the positioning rod 15, the movable block 6 can be limited. When the card frame 9 stands stably on one side of the capacitor, the test probe 5 can maintain stable contact with the phase (A phase, N phase, etc.) on the capacitor.

[0020] Among them, the handles 16 are fixedly connected to both sides of the moving block 6, and the handles 16 are provided with anti-slip grooves. By providing the handles 16, the movement and adjustment of the moving block 6 can be facilitated.

[0021] Among them, the connecting block 4 is in contact with the stopper 17, the stopper 17 is fixedly connected to the end of the spring rod 7, the spring rod 7 is inserted into the moving block 6, and by setting the spring rod 7 and the stopper 17, the connecting block 4 can be limited to ensure the stability of the test probe 5 and the upper phase of the capacitor.

[0022] Working principle: according to the size of the capacitor, the adjusting rod 11 is rotated to make the two clamps 12 move relative to each other and clamped on one side of the capacitor. Then, one end of the test line 3 is plugged into the connecting plug 2 and the connecting block 4 is inserted into the moving block 6. The connecting block 4 is limited by the spring rod 7 and the block 17 and stabilized in the moving block 6. At the same time, the test probe 5 is extended. At this time, the handle 16 is pulled to adjust the position of the moving block 6 so that the test probe 5 keeps contact with the phase of the capacitor. At the same time, the positioning rod 15 is inserted into the through hole 14 to achieve fixation, stabilize the contact between the test probe 5 and the upper phase of the capacitor, and then the data is monitored through the tester body 1.

[0023] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

[0024] Other parts of the present invention not described in detail belong to the prior art and will not be described in detail here.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A capacitive voltage transformer test wiring device, comprising a tester body (1), a connecting plug (2), a test line (3), a connection block (4) and a test probe (5), characterized in that: The connecting block (4) is sleeved with a moving block (6), a spherical ball (8) is rotatably embedded in the moving block (6) and the spherical ball (8) contacts a clamping frame (9), both sides of the bottom end of the clamping frame (9) are fixedly connected with support plates (10), an adjusting rod (11) is rotatably connected to the support plate (10), and both sides of the adjusting rod (11) that are away from each other are threadedly connected with clamping plates (12), and the opposite sides of the two clamping plates (12) are glued with pads.

2. A capacitive voltage transformer test wiring device as claimed in claim 1, characterized in that: A limiting groove (13) is provided in the clamping frame (9), and the limiting groove (13) is in contact with the ball (8).

3. A capacitive voltage transformer test wiring device as claimed in claim 2, characterized in that: The card frame (9) is evenly provided with through holes (14), one of the through holes (14) is plugged with a positioning rod (15), and the positioning rod (15) is plugged with a moving block (6).

4. A capacitive voltage transformer test wiring device as claimed in claim 1, characterized in that: Both sides of the moving block (6) are fixedly connected with handles (16), and the handles (16) are provided with anti-slip grooves.

5. A capacitive voltage transformer test wiring device as claimed in claim 4, characterized in that: A spring rod (7) is inserted into one side of the moving block (6), and a stopper (17) is fixedly connected to the end of the spring rod (7), and the stopper (17) is in contact with the connecting block (4).

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