Mechanical high-voltage circuit breaker with short circuit self-locking function

A high-voltage circuit breaker and mechanical technology, applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve problems such as damage to high-voltage circuit breakers of electrical equipment, failure to display the status of the power grid, and threats to the safe operation of the power grid. To achieve the effect of providing security

Inactive Publication Date: 2010-06-16
HUBEI SHENGJIA ELECTRIC EQUIP +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of function, the existing high-voltage circuit breakers cannot display the state of the power grid when a short-circuit fault occurs, and if the short-circuit fault is not eliminated, if the switch is closed by mistake, it will cause great damage to the electrical equipment and the high-voltage circuit breaker itself. more importantly, seriously threaten the safe operation of the power grid

Method used

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  • Mechanical high-voltage circuit breaker with short circuit self-locking function
  • Mechanical high-voltage circuit breaker with short circuit self-locking function
  • Mechanical high-voltage circuit breaker with short circuit self-locking function

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Embodiment Construction

[0074] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0075] see figure 1 As shown, it is a schematic diagram of the external structure of the mechanical high-voltage circuit breaker with short-circuit self-locking function of the present invention; the mechanical high-voltage circuit breaker with short-circuit self-locking function includes: a high-voltage circuit breaker body, which realizes the actual Functionally, the connection and output of the high-voltage circuit line also includes the following functional modules in order to realize the short-circuit self-locking function of the present invention:

[0076] A short-circuit detection unit, which is used to detect whether a short-circuit fault occurs on the phase line where the high-voltage circuit breaker body is located, and generates a breaking signal when a short-circuit fault occurs;

[0077] A sh...

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Abstract

The invention relates to a mechanical high-voltage circuit breaker with a short circuit self-locking function, which comprises a high-voltage circuit breaker body, a short circuit detecting unit, a short circuit action trigger mechanism and a mechanical self-locking mechanism. The short circuit detecting unit is used for detecting whether a phase line of the high-voltage circuit breaker body has a short circuit failure and generating a breaking signal when the short circuit failure occurs; the short circuit action trigger mechanism is connected with a breaking mechanism of the high-voltage circuit breaker body and is used for triggering the breaking mechanism to generate a breaking action after receiving the breaking signal; and the mechanical self-locking mechanism ensures that the breaking mechanism cannot automatically reset.

Description

technical field [0001] The invention relates to a high-voltage circuit breaker, in particular to a mechanical high-voltage circuit breaker with a short-circuit self-locking function. Background technique [0002] The high-voltage circuit breaker (or high-voltage switch) is the main power control equipment in the substation. It has arc-extinguishing characteristics. When the system is operating normally, it can cut off and connect the no-load and load currents of the lines and various electrical equipment; When the system fails, it cooperates with the relay protection to quickly cut off the fault current to prevent the expansion of the scope of the accident. Therefore, the quality of the high-voltage circuit breaker directly affects the safe operation of the power system; there are many types of high-voltage circuit breakers, according to their Different arc extinguishing can be divided into: oil circuit breaker (more oil circuit breaker, less oil circuit breaker), sulfur hex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/00H01H71/10H01H33/666
CPCH01H33/666H01H2033/6667
Inventor 万家盛汪志强
Owner HUBEI SHENGJIA ELECTRIC EQUIP
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