Novel moving contact sealing device of GW20-252W2500 type disconnecting switch

A technology of isolating switch and sealing device, which is applied to electric switches, air switch parts, contact shells/screens, etc., can solve problems such as water seepage, water accumulation in sealing devices, circuit damage of isolation switches, etc. The effect of improving waterproof performance and increasing service life

Pending Publication Date: 2022-01-25
国能浙江余姚燃气发电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the moving contact sealing device of the existing GW20-252W2500 isolating switch is in use, due to the aging and damage of the sealing device and the defects of the sealing device itself, it is easy to cause the problem of water accumulation and water seepage in the sealing device, resulting in the disconnection of the isolating switch. circuit damage

Method used

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  • Novel moving contact sealing device of GW20-252W2500 type disconnecting switch
  • Novel moving contact sealing device of GW20-252W2500 type disconnecting switch
  • Novel moving contact sealing device of GW20-252W2500 type disconnecting switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like Figure 5 As shown, the anti-seepage component 5 can be a waterproof cap 70, the lower surface of the waterproof cap 70 is fixedly installed on the upper surface of the sealing body 1 and the position corresponding to the action channel 3 of the moving contact, and the upper surface of the waterproof cap 70 is provided with a hole for easy movement. Through hole 71 for contact movement.

[0047] The waterproof cap 70 can be in the shape of a rectangular block to prevent accumulated water from entering the inside of the sealing body 1 through the moving contact channel 3 and causing damage to the isolating switch.

[0048] Specifically, the rainwater flowing around the movable contact channel 3 is blocked by the rectangular block-shaped waterproof cap 70 to prevent it from entering the movable contact channel 3 and then entering the sealing body 1 to cause damage to the isolating switch.

Embodiment 2

[0050] like Figure 6 As shown, the anti-seepage component 5 can be a waterproof cap 70, the lower surface of the waterproof cap 70 is fixedly installed on the upper surface of the sealing body 1 and the position corresponding to the action channel 3 of the moving contact, and the upper surface of the waterproof cap 70 is provided with a hole for easy movement. Through hole 71 for contact movement.

[0051] The waterproof cap 70 can also be a trapezoidal block with a wide top and a narrow bottom. As the accumulated water increases, its upper wide top forms an enclosure to prevent the accumulated water from splashing into the action channel 3 of the moving contact.

[0052] Specifically, the trapezoidal block-shaped waterproof cap 70 with a wide top and a narrow bottom can form an enclosure on the upper part of the waterproof cap 70 to prevent part of the rainwater from splashing over the waterproof cap 70 into the moving contact channel 3 when the rainwater flows.

Embodiment 3

[0054] like Figure 7-10 , the anti-seepage assembly 5 can also be a waterproof groove 80, the waterproof groove 80 is opened on the upper surface of the sealing body 1, the inner wall of the waterproof groove 80 is provided with a water outlet hole 81, and the inner wall of the waterproof groove 80 is fixedly connected with a partition 82, the partition The upper surface of 82 is provided with a water hole 83, and the water hole 83 is in the shape of a cone with a large top and a small bottom.

[0055] Specifically, the moving contact channel 3 is isolated from the periphery through the waterproof groove 80, so that the flowing rainwater directly enters the waterproof groove 80 and cannot enter the moving contact channel 3. Cooperate so that rainwater enters the bottom of the waterproof groove 80 through the water hole 83. Since the water hole 83 is large and small, the rainwater at the bottom of the waterproof groove 80 is not easy to splash into the moving contact action ch...

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Abstract

The invention discloses a novel moving contact sealing device of a GW20-252W2500 type disconnecting switch, and the sealing device comprises a sealing body; a mounting hole is formed in the upper surface of the sealing body, a moving contact action hole channel is formed in the upper surface of the sealing body, a reinforcing assembly is arranged on the upper surface of the sealing body, and a waterproof structure is arranged on the upper surface of the sealing body. Through cooperation of the material of the sealing body and the reinforcing assembly, the sealing body is not prone to being damaged, the service life of the sealing body is prolonged, then it is ensured that water seepage of the sealing body caused by aging and damage is avoided, the waterproof performance of the sealing device is improved, a slope is formed at the top of the slightly-convex-umbrella-shaped sealing body, it is ensured that rainwater flows out, and water accumulation on the sealing body is avoided; according to the moving contact sealing device of the novel GW20-252W2500 type disconnecting switch, the reinforcing ribs are prevented from blocking flowing of rainwater through the drainage grooves, and the rainwater is drained in time through the water guide grooves and the water outlet holes, so that the moving contact sealing device of the novel GW20-252W2500 type disconnecting switch solves the problem that the sealing device is prone to water accumulation and water seepage.

Description

technical field [0001] The application relates to the technical field of power transmission and distribution equipment, and in particular to a moving contact sealing device of a new type GW20-252W2500 isolating switch. Background technique [0002] The isolating switch is the most widely used electrical appliance in the high-voltage switchgear. It plays the role of isolation in the circuit. The sealing device of the moving contact of the isolating switch is an important component to ensure the normal operation of the isolating switch. Currently, GW20-252W / 2500 type is used. All manufacturers of isolating switches upgrade the isolating switch by replacing the isolating switch or changing the type of equipment. As the development of the power industry slows down, the operating pressure gradually increases, especially the operating costs of power plants need to be greatly reduced. Under the premise of improving the reliability of the equipment, it has become the general trend t...

Claims

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Application Information

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IPC IPC(8): H01H1/64H01H9/04H01H31/02
CPCH01H31/02H01H1/64H01H9/04Y02A30/14
Inventor 陈东卢骚张强
Owner 国能浙江余姚燃气发电有限责任公司
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