CN107527763B

CN107527763B - Manual isolation operating mechanism for GIS isolating switch

Info

Publication number: CN107527763B
Application number: CN201710620169.0A
Authority: CN
Inventors: 化兆祥; 李伟
Original assignee: Shandong Taikai High Volt Switchgear Co Ltd
Current assignee: Shandong Taikai High Volt Switchgear Co Ltd
Priority date: 2017-07-26
Filing date: 2017-07-26
Publication date: 2023-08-18
Anticipated expiration: 2037-07-26
Also published as: CN107527763A

Abstract

The invention relates to a manual isolation operating mechanism for a GIS isolating switch, which comprises a spring, a bracket, a support plate, a baffle plate, an output gear, a gear support, a fixed plate, a spring pin, a brake separating indicator, a bottom plate, a large gear, a rocker, a large gear support, a travel switch, a brake closing indicator, a sealing rubber pad, a mechanism cover, a bent plate and the like. And the large gear and the output gear are driven to rotate through the rotation of the rocker, so that the movement of the contact of the isolating switch is realized, and the switching-on and switching-off functions are completed. The beneficial effects of the invention are as follows: simple structure, convenient operation has avoided the influence that the insulator easily leads to leaking gas of dismantling repeatedly on site, greatly reduced on-the-spot work load, greatly improved work efficiency.

Description

Manual isolation operating mechanism for GIS isolating switch

Technical Field

The invention relates to a manual isolation operating mechanism for a GIS isolating switch, in particular to a manual isolation operating mechanism for separating an isolating fracture of a voltage transformer from an isolating fracture of a lightning arrester when a high-voltage combined electrical apparatus is subjected to field voltage withstand.

Background

With the rapid development of national economy, the demand for high-voltage power equipment is increasing. The SF6 high-voltage combined electrical apparatus has the advantages of small occupied area, convenient maintenance and operation, safe and reliable power supply and the like, and is widely applied to domestic and foreign power construction. The voltage transformer and the lightning arrester of the protection equipment are important components of the high-voltage combined electrical apparatus, the voltage transformer is an element for realizing the functions of measuring voltage and protecting abnormal voltage in the GIS, and the lightning arrester is mainly used for protecting the insulation of GIS electrical equipment from lightning and partial operation overvoltage. The clauses of the insulation test on the main circuit in GB7674-2008 require: insulation testing of high voltage combiner circuits is very important for GIS, in order to eliminate the potential cause of internal faults that may result in the future, the integrity of the insulation should be checked, but "due to the high charging current of certain components, or the limitation of the voltage, certain components need to be isolated when tested, for example: power transformers and certain voltage transformers, lightning arresters, etc.). The national power grid and the south network also require that an isolation fracture is added in front of a lightning arrester or a voltage transformer, so that the field test is convenient. The prior practice is to detach the voltage transformer or the lightning arrester and then test. The insulators of the voltage transformer and the lightning arrester which are repeatedly disassembled are possibly scratched by collision. Not only can the sealing, strength and other performances of the insulator be affected, but also the field workload can be increased. Based on the above situation, there is an urgent need to add an isolation fracture on the voltage transformer and the lightning arrester device, and the isolation and connection of the voltage transformer and the lightning arrester are realized through opening and closing of the isolation fracture. The invention is based on this idea.

Disclosure of Invention

The invention aims to provide a manual isolation operating mechanism for separating an isolation fracture of a voltage transformer and an arrester when a high-voltage combined electrical apparatus is subjected to field voltage withstand, so that the voltage withstand implementation of the high-voltage combined electrical apparatus is convenient.

The invention is realized by the following technical scheme:

the utility model provides a manual isolation operating device for GIS isolator, includes spring, support, backup pad, baffle, output gear, gear support, fixed plate, spring catch, separating brake sign, bottom plate, gear wheel, rocker, gear wheel support, travel switch, closing sign, sealed cushion, mechanism cover, bent plate. The output gear is connected with the shaft through a spline, the shaft is fixed on a gear support, and the gear support is fixed on the bottom plate through a screw; the large gear is connected with the shaft through a spline, the shaft is fixed on a large gear support, the large gear support is fixed on the bottom plate through a screw, and in addition, the large gear is meshed with the output gear through teeth; the opening indication board and the closing indication board are fixed on the bottom board, spring pins are respectively arranged at the positions of the opening indication board and the closing indication board, springs are arranged outside the spring pins, the spring pins are placed in holes of the support through the pressure of the springs, and the support is fixed on the bottom board through screws; in addition, the bottom plate is fixed with a brake opening indication board and a brake closing indication board, travel switches are respectively arranged at the bottom plate, the travel switches are connected with the fixing plate through screws, and the fixing plate is fixed on the bottom plate. When the switching-on and switching-off operation is carried out, the spring pin is pulled out at first, the baffle is released, then the rocker is operated, the rocker drives the large gear, the large gear drives the output gear to rotate through tooth meshing, and the output gear drives the movement of the contact inside the isolating switch through the rotation of the shaft, so that the switching-on and switching-off operation is realized.

The beneficial effects of the invention are as follows: the structure is simple, the operation is convenient, the safety and reliability are realized, the effect of isolating the fracture of the lightning arrester and the voltage transformer during site withstand voltage can be realized, the influence of air leakage caused by repeated disassembly of the insulator on site is avoided, the site workload is greatly reduced, and the working efficiency is greatly improved.

Drawings

The present invention will be specifically described with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the mechanism cover of the present invention.

In the figure, 1 spring, 2 support, 3 backup pad, 4 baffles, 5 output gear, 6 gear support, 7 fixed plates, 8 spring pin, 9 brake separating indicator, 10 bottom plate, 11 gear wheel, 12 rocker, 13 gear support, 14 travel switch, 15 brake closing indicator, 16 sealed cushion, 17 mechanism cover, 18 bent plate.

Detailed Description

Figures 1 and 2 illustrate an embodiment of the present invention. The manual isolation operating mechanism for the GIS isolating switch comprises a spring 1, a support 2, a support plate 3, a baffle 4, an output gear 5, a gear support 6, a fixed plate 7, a spring pin 8, a brake separating indicator 9, a bottom plate 10, a large gear 11, a rocker 12, a large gear support 13, a travel switch 14, a brake closing indicator 15, a sealing rubber pad 16, a mechanism cover 17 and a bent plate 18. The output gear 5 is connected with a shaft through a spline, the shaft is fixed on a gear support 6, and the gear support 6 is fixed on a bottom plate 10 through a screw; the large gear 11 is connected with a shaft through a spline, the shaft is fixed on a large gear support 13, the large gear support 13 is fixed on the bottom plate 10 through a screw, and in addition, the large gear 11 is meshed with the output gear 5 through teeth; the opening indication board 9 and the closing indication board 15 are fixed on the bottom board 10, the spring pin 8 is arranged outside the spring pin 8, the spring pin 8 is arranged in a hole of the bracket 2 by the pressure of the spring 1, and the bracket 2 is fixed on the bottom board 10 by a screw; in addition, a travel switch 14 is mounted on each of the opening and closing direction plates 9 and 15 fixed to the bottom plate 10, the travel switch 14 is connected to the fixing plate 7 by screws, and the fixing plate 7 is fixed to the bottom plate 10. The mechanism cover 17 is connected with the bent plate 18 through screws, and a sealing rubber cushion 16 is clamped at the press joint surface of the mechanism cover and the bent plate for preventing rain; the bending plate 18 is connected to the base plate 10 by means of screws.

When the opening and closing operation is carried out, firstly, the bending plate 18 and the mechanism cover 17 are removed, then the spring pin 8 is pulled out, the baffle plate 4 is released, then the rocker 12 is operated to rotate, the rocker 12 drives the large gear 11, the large gear 11 drives the output gear 5 to rotate through tooth meshing, and the output gear 5 drives the movement of the contact inside the isolating switch through shaft rotation, so that the opening and closing operation is realized.

The present invention is not limited to the above embodiments, and any person who makes the technical solution with the same or similar to the present invention in the light of the present invention should be known to fall within the scope of the present invention.

The technology, shape, and construction parts of the present invention, which are not described in detail, are known in the art.

Claims

1. The manual isolation operation operating mechanism for the GIS isolating switch comprises a spring, a support plate, a baffle plate, an output gear, a gear support, a fixed plate, a spring pin, a brake separating indicator, a bottom plate, a large gear, a rocker, a large gear support, a travel switch, a brake closing indicator, a sealing rubber pad, a mechanism cover and a bent plate, wherein the output gear is connected with a first shaft through a spline, the first shaft is fixed on the gear support, and the gear support is fixed on the bottom plate through a screw; the large gear is connected with the second shaft through a spline, the second shaft is fixed on a large gear support, the large gear support is fixed on the bottom plate through a screw, and in addition, the large gear is meshed with the output gear through teeth; the opening indication board and the closing indication board are fixed on the bottom board, spring pins are respectively arranged at the positions of the opening indication board and the closing indication board, springs are arranged outside the spring pins, the spring pins are placed in holes of the support through the pressure of the springs, and the support is fixed on the bottom board through screws; in addition, the bottom plate is fixed with a brake opening indication board and a brake closing indication board, travel switches are respectively arranged at the positions, the travel switches are connected with a fixed plate through screws, the fixed plate is fixed on the bottom plate, and a mechanism cover is connected with a bent plate through screws so as to prevent rain at the pressure joint surfaces of the two, and a sealing rubber pad is clamped; the bent plate is connected with the bottom plate through screws, and is characterized in that: the locking function of the rocker can be realized at the opening indication board and the closing indication board through the spring, the spring pin and the bracket, and the baffle plate of the rocker is provided with a hole, so that the insertion of the spring pin can be realized, and the locking function is completed.

2. The manual isolation operating mechanism for a GIS isolation switch according to claim 1, wherein: a travel switch is fixed at the opening indication board and the opening indication board, so that signals can be output.