Self-blast circuit breaker reusing arc heat

一种断路器、热气的技术，应用在高压空气断路器、电路、电开关等方向，能够解决很难故障电流、中断等问题，达到改善中断性能、压力提高的效果

Active Publication Date: 2015-10-14
HYUNDAI ELECTRIC & ENERGY SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the interruption performance of SF6 gas at high temperature deteriorates suddenly, it is difficult to interrupt the fault current

Method used

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  • Self-blast circuit breaker reusing arc heat
  • Self-blast circuit breaker reusing arc heat
  • Self-blast circuit breaker reusing arc heat

Examples

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Embodiment Construction

[0028] It should be understood that terms or expressions used in this specification and the following claims should not be interpreted as having a broad meaning or the meaning that can be found in a dictionary. Therefore, in consideration of the idea that an inventor can most appropriately define the concept of a term or expression to best explain his or her invention, the term or expression should be understood as having a meaning or concept consistent with the technical spirit of the present invention . In addition, since the embodiments presented here and the configurations illustrated in the drawings are only examples and do not represent all the technical spirit of the present invention, it should be understood that various equivalents or modifications may be used in the current application to replace the embodiments and structure.

[0029] figure 1 is a cross-sectional view illustrating the structure of a conventional self-cleaning circuit breaker, and figure 2 is a ...

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Abstract

The present disclosure relates to a circuit breaker of a gas-insulated switchgear, and more particularly, to a self-blast circuit breaker of a gas-insulated switchgear, which reuses arc heat. A self-blast circuit breaker having a heat expansion chamber and a puffer chamber includes auxiliary intake valves which introduce a hot gas exhausted through an inside of an actuating rod, into the heat expansion chamber.

Description

technical field [0001] The present invention relates to a circuit breaker for gas insulated switchgear, and more particularly, to a self-blast circuit breaker for gas insulated switchgear which reuses arc heat. Background technique [0002] Gas-insulated switchgear (GIS) refers to a switching system in which switching units such as circuit breakers, disconnectors, transformers, surge arresters, and main Supported by plates, sulfur hexafluoride (SF6) gas, which is an insulating medium with excellent insulation and arc extinguishing properties, is filled inside the cabinet and then sealed. [0003] The main withstand voltage components of GIS include gas circuit breakers, grounding switches, lightning arresters, voltage transformers, current transformers, etc. [0004] The operating procedures for circuit breakers used in GIS are specified in IEC standards. In general, the nominal operating sequence 'O-0.3s-CO-3min-CO' is followed. [0005] Basically, in the circuit breaker...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/02H01H33/64
CPCH01H33/90H01H33/72H01H2033/888H01H2033/908H01H33/94
Inventor 金亨春
Owner HYUNDAI ELECTRIC & ENERGY SYST CO LTD
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