Gas circuit breaker

A gas circuit breaker and cylinder technology, which is applied to circuit breaker parts, circuits, electrical components, etc., can solve the problems of increasing the expansion length of the gas circuit breaker or the cross-sectional area of ​​the compression chamber 7.

Inactive Publication Date: 2013-01-23
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this increases the expansion length of the gas circuit b

Method used

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  • Gas circuit breaker
  • Gas circuit breaker
  • Gas circuit breaker

Examples

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Embodiment Construction

[0018] Hereinafter, the structure and operation of the gas circuit breaker will be described in detail with reference to the accompanying drawings showing exemplary embodiments.

[0019] image 3 is a sectional view showing an inserted state of the gas circuit breaker 10 according to one embodiment; Figure 4 is a sectional view showing the transition state of the gas circuit breaker 10; and Figure 5 A sectional view showing the off state of the gas circuit breaker 10 .

[0020] refer to Figure 3 to Figure 5 , the gas circuit breaker 10 of the present embodiment includes fixed parts and movable parts. The basic configuration of the gas circuit breaker 10 is similar to that of the related art gas circuit breaker. The stationary part comprises a stationary arcing contact 11 and a first stationary contact engagement means 12 in which the stationary arcing contact 11 is arranged. The movable part includes a first nozzle 13 into which a fixed arc contact 11 is inserted, a cy...

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PUM

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Abstract

Provided is a gas circuit breaker. The gas circuit breaker includes a fixed part, a movable part, a piston, and a double compression mechanism. The fixed part includes a fixed arc contact and a first fixed contact maker. The movable part includes a movable arc contact selectively making contact with the fixed arc contact, a cylinder in which the movable arc contact is disposed, and a second fixed contact maker guiding a movement of the cylinder. The piston is disposed in the second fixed contact maker. The double compression mechanism is configured to move the piston in a direction opposite to a moving direction of the movable part when the movable part is moved to separate the fixed arc contact and the movable arc contact for interrupting a fault current.

Description

technical field [0001] The present disclosure relates to gas circuit breakers. Background technique [0002] Generally, a gas circuit breaker is arranged on a transmission line to disconnect the transmission line, which checks the transmission line and other devices or protects the transmission line and load devices by interrupting a current in an abnormal situation. In particular, gas circuit breakers can safely protect extra-high voltage power systems by interrupting fault currents generated by ground faults or short circuits. In more detail, in order to interrupt a fault current in an abnormal state under harsh conditions, the gas circuit breaker highly compresses the insulating arc extinguishing gas, and injects high-pressure arc extinguishing gas through a nozzle to extinguish the arc generated when the current is interrupted. [0003] In the case of hybrid arc-extinguishing circuit breakers, the arc energy of the fault current is used as the energy source for the expa...

Claims

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Application Information

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IPC IPC(8): H01H71/10H01H73/18
CPCH01H73/18H01H33/904H01H71/10
Inventor 延济旭朴晳远崔锺雄
Owner LSIS CO LTD
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