CN214755172U - Live-line replacement device for lightning arrester counter - Google Patents
Live-line replacement device for lightning arrester counter Download PDFInfo
- Publication number
- CN214755172U CN214755172U CN202120121071.2U CN202120121071U CN214755172U CN 214755172 U CN214755172 U CN 214755172U CN 202120121071 U CN202120121071 U CN 202120121071U CN 214755172 U CN214755172 U CN 214755172U
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- wiring board
- short circuit
- arrester
- binding clip
- cable
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Abstract
The utility model discloses a device is changed in electrified of arrester counter, including keeping apart switch, drum, short circuit binding clip one, short circuit binding clip two, keep apart the switch and include base, composite insulator, static contact, moving contact, wiring board one, wiring board two, set up two composite insulator on the base, wiring board one sets up on one of them insulator top, and wiring board two sets up on another insulator top, the static contact spanes on wiring board one and wiring board two, the static contact is connected through the pivot with the moving contact, short circuit binding clip one is through cable junction wiring board one, wiring board two links the wiring dish, and the drum other end passes through cable connection short circuit binding clip two, the utility model discloses simple structure, convenient to use is swift, and the arrester reliably connects to ground discharge circuit, and 8 meters outer safety grounds are drawn to the discharge ground point, and convenient, The fault counter is safely and reliably replaced, and the operation reliability of the lightning arrester is improved.
Description
Technical Field
The utility model belongs to the technical field of arrester maintenance apparatus, concretely relates to device is changed with electricity to arrester counter.
Background
The operating environments of 500kV and 220kV arresters are outdoor, and the arresters are blown by wind, rain, frozen and exposed all the year round, so that the outer shell of a counter of the arrester is degraded, the sealing is damaged, and internal elements are frequently in failure. The fault of the counter can cause the leakage current monitoring loop of the lightning arrester, the discharge counting condition and the good conduction of the discharge ground loop to have hidden troubles. Because of being limited by the structural form and the operating condition of the field equipment, the processing mode is changed and processed once when the high-voltage equipment is powered off. However, in most cases it is not practical to power down the master, so two situations arise: 1. the arrester is taken ill the operation for a long time, 2, electrified the change, the action of staff's carelessness appears easily under this kind of condition, causes very big potential safety hazard.
Disclosure of Invention
In order to solve the problems, the invention discloses a charged replacement device for a lightning arrester counter, wherein the lightning arrester is reliably connected with a ground discharge loop, a discharge grounding point is externally led by 8 meters for safe grounding, and the replacement of a fault counter is conveniently, safely and reliably carried out.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a device is changed in electrified of arrester counter, includes isolation switch, drum, short circuit binding clip one, short circuit binding clip two, isolation switch includes base, composite insulator, static contact, moving contact, wiring board one, wiring board two, sets up two composite insulator on the base, and wiring board one sets up on one of them insulator top, and wiring board two sets up on another insulator top, the static contact spanes on wiring board one and wiring board two, the static contact passes through the pivot with the moving contact and is connected, short circuit binding clip one is through cable junction wiring board one, and wiring board two links the drum, and the drum other end passes through cable junction short circuit binding clip two.
As an improvement of the utility model, an insulating handle is arranged on the moving contact.
As an improvement of the utility model, the length of the equal-resistance copper short-circuit wire in the wire coil is more than or equal to 8 m.
As an improvement of the present invention, the cable is a YH cable.
As an improvement of the utility model, be equipped with fastener fastening handle on short circuit binding clip one and the short circuit binding clip two.
The utility model has the advantages that:
a device is changed in arrester counter electrification, simple structure, convenient to use is swift, the arrester is reliably connected to ground discharge circuit, 8 meters outer safety earthing is drawn outward to the discharge grounding point, convenient, safe, reliably carry out the fault counter and change, improvement arrester operational reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the short circuit jointing clamp of the present invention.
List of reference numerals:
1. the device comprises a static contact, 2, a composite insulator, 3, a cable, 4, short circuit wiring clamps I and 5, a wire clamp fastening handle, 6, a base, 7, an insulating handle, 8, a moving contact, 9, a wire coil, 10, a wiring board I and 11, short circuit wiring clamps II and 12 and a wiring board II.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the drawing, an arrester counter live replacement device, including isolation switch, drum 9, short circuit binding clip 4, short circuit binding clip two 11, the isolation switch includes base 6, composite insulator 2, static contact 1, moving contact 8, wiring board 10, wiring board two 12, set up two composite insulator 2 on the base 6, wiring board 10 sets up on one of them insulator top, and wiring board two 12 sets up on another insulator top, static contact 1 spanes on wiring board 10 and wiring board two 12, static contact 1 is connected through the pivot with moving contact 8, short circuit binding clip 4 connects wiring board 10 through cable 3, and wiring board two 12 link the drum, and the drum 9 other end passes through cable junction short circuit binding clip two 11.
When the short-circuit lightning arrester is used, 1, firstly, a short-circuit wiring clamp II 11 grounding resistor (40X 4mm flat iron resistor) is selected for short circuit, the short circuit is preferably 8 meters away from a working lightning arrester, and the injury of step voltage caused by action current to working personnel is prevented during working; 2. closing the isolation switch to confirm good contact; 3. short-circuiting the short-circuit jointing clamp I4 on the grounding bar at the side of the counter arrester to be replaced, and confirming firmness; 4. checking that counter leakage current is masked, indicated as zero; if the current indication of the counter cannot be normally indicated, a milliampere ammeter can be connected in parallel between the disconnecting ports of the disconnecting switches, the disconnecting switches are disconnected to confirm that leakage is correctly shielded by a short circuit loop, but the detection is required to act quickly, and the isolating disconnecting switches are immediately switched on to avoid fusing caused by the fact that the capacity of the milliampere ammeter cannot meet the action current of the lightning arrester; 5. rapidly replacing the fault device, and checking the new counter to be qualified before replacement; 6. and after the new counter is replaced, disconnecting the isolation switch, checking whether the current indication of the new counter is normal or not, if the current indication cannot be normally indicated, further checking and confirming the reason, such as the normal work of the counter, closing the isolation switch, removing the short circuit loop, and firstly removing the side of the counter and then removing the grounding end.
Be equipped with insulating handle 7 on the moving contact 8, ensure operator's safety.
Adopt equal resistance copper short-circuit line in drum 9, length is greater than or equal to 8 m.
Be equipped with fastener fastening handle 5 on short circuit binding clip 4 and short circuit binding clip 11, as shown in fig. 2.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (5)
1. The utility model provides a device is changed in arrester counter electrification which characterized in that: the isolation disconnecting link comprises a base, two composite insulators, a fixed contact, a moving contact, a first wiring board and a second wiring board, wherein the two composite insulators are arranged on the base, the first wiring board is arranged on the top end of one of the insulators, the second wiring board is arranged on the top end of the other insulator, the fixed contact stretches across the first wiring board and the second wiring board, the fixed contact is connected with the moving contact through a rotating shaft, the first short-circuit wiring clip is connected with the first wiring board through a cable, the second wiring board is connected with the wiring board, and the other end of the wire coil is connected with the second short-circuit wiring clip through a cable.
2. The charged replacement device for the arrester counter according to claim 1, characterized in that: and an insulating handle is arranged on the moving contact.
3. The charged replacement device for the arrester counter according to claim 1, characterized in that: the length of the equal-resistance copper short-circuit wire in the wire coil is more than or equal to 8 m.
4. The charged replacement device for the arrester counter according to claim 1, characterized in that: the cable is a YH cable.
5. The charged replacement device for the arrester counter according to claim 1, characterized in that: and the first short-circuit jointing clamp and the second short-circuit jointing clamp are provided with wire clamp fastening handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121071.2U CN214755172U (en) | 2021-01-18 | 2021-01-18 | Live-line replacement device for lightning arrester counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120121071.2U CN214755172U (en) | 2021-01-18 | 2021-01-18 | Live-line replacement device for lightning arrester counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214755172U true CN214755172U (en) | 2021-11-16 |
Family
ID=78639760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120121071.2U Active CN214755172U (en) | 2021-01-18 | 2021-01-18 | Live-line replacement device for lightning arrester counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214755172U (en) |
-
2021
- 2021-01-18 CN CN202120121071.2U patent/CN214755172U/en active Active
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