Circuit breaker opening and closing energy compensation device and method
A technology of energy compensation, opening and closing, applied in measuring devices, circuit breaker testing, emergency protection circuit devices, etc.
Pending Publication Date: 2020-05-29
GUANGDONG POWER GRID CO LTD +1
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0004] Therefore, the embodiment of the present invention provides a circuit breaker opening and closing energy compensation device and method to solve the problems in the prior art
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[0024] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] Such as figure 1 As shown, the present invention provides a circuit breaker opening and closing energy compensation device, including an opening and closing circuit and a power management circuit, the opening and closing circuit is connected to a detection circuit, the detection circuit is connected to a synchronous adjustment circuit, and the synchronous The adjustment circuit is connect...
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The embodiment of the invention discloses a circuit breaker opening and closing energy compensation device and method. A compensation device comprises an opening and closing loop and a power supply management circuit. An opening and closing loop is connected with the detection circuit. A detection circuit is connected with the synchronous adjustment circuit. A synchronous adjustment circuit is connected with the DSP processor, the DSP processor is connected with the isolation drive circuit, the isolation drive circuit is connected with the LCL filter circuit, and the LCL filter circuit is connected with the opening and closing loop. And the power supply management circuit is connected with the detection circuit, the synchronous adjustment circuit and the DSP in parallel. When the mechanismis jammed, the coil firing pin cannot hit the mechanism opening and closing latch to cause that the mechanism cannot be opened and closed, the coil energy is supplemented in time, so that the coil hit the mechanism opening and closing latch to avoid override tripping caused by the fact that the circuit breaker mechanism cannot be opened and closed in time, and the power failure range is expanded.
Description
technical field [0001] The embodiment of the present invention relates to the technical field of circuit breakers, and in particular to a circuit breaker opening and closing energy compensation device and method. Background technique [0002] The substation is the most important component of the entire power system. If we can detect and eliminate potential faults and hidden dangers in the substation in time, we can ensure the safe operation of the power system to a great extent. In the substation, the high-voltage circuit breaker is an important component for removing grid faults, and the mechanism in the high-voltage circuit breaker is one of the key components of the secondary high-voltage circuit breaker. During the long-term non-operation period of the mechanism, there is jamming in various parts of the mechanism. As a result, when the loop control coil is activated, the opening and closing detent cannot be knocked open, resulting in the failure of the opening and closin...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G01R31/327G05B19/048H02H7/28
CPCG01R31/3272G01R31/3275G05B19/048G05B2219/2639H02H7/28
Inventor 唐锦尧孙德兴吴汝豪黄宪武
Owner GUANGDONG POWER GRID CO LTD