Device for detecting interruption performance of mechanical direct-current circuit breaker

A DC circuit breaker and detection device technology, which is applied in the direction of circuit breaker testing, measuring devices, instruments, etc., can solve the problems of inability to provide DC power breaking performance, detection, etc., so as to facilitate the construction of test platforms, reduce research and development costs, and can be molded strong shape effect

Active Publication Date: 2019-03-22
SHANGHAI SIEYUAN HIGH VOLTAGE SWITCHGEAR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a detection device for the breaking performance of a mechanical DC circuit breaker, which solves the problems that the existing testing device cannot provide a DC power supply conforming to the actual working conditions for the detection of the breaking performance.

Method used

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  • Device for detecting interruption performance of mechanical direct-current circuit breaker
  • Device for detecting interruption performance of mechanical direct-current circuit breaker
  • Device for detecting interruption performance of mechanical direct-current circuit breaker

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The invention provides a detection device for the breaking performance of a mechanical DC circuit breaker, which is applied in the reclosing state, such as figure 1 and 2 As shown, it includes a first power circuit and a second power circuit connected in parallel, its input terminal is connected to the AC power supply, and its output terminal is connected to the DC circuit breaker to be tested. Both the first power circuit and the second power circuit are used for According to the size of the fault current to be simulated, the corresponding AC power supply is generated; the first power circuit includes the first AC circuit breaker, the second circuit includes the second AC circuit breaker, and the DC circuit breaker to be detected is connected to the main controller, the main controller The secondary control unit is connected with the ...

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Abstract

The invention relates to the technical field of circuit breaker detection and discloses a device for detecting the interruption performance of a mechanical direct-current circuit breaker. The device is applied to a reclosure state and comprises first / second power circuits in parallel connection, and an input end is connected with an alternating-current power source while an output end is connectedwith a to-be-detected direct-current circuit breaker. The to-be-detected direct-current circuit breaker is connected with an auxiliary control unit through a master controller, and the auxiliary control unit is connected with a first alternating-current circuit breaker of the first power circuit and a second alternating-current circuit breaker of the second power circuit and used for driving andcontrolling opening and closing of the first / second alternating-current circuit breakers. The first alternating-current circuit breaker is connected with the master controller through a fault triggering module, the fault triggering module is used for driving the first alternating-current circuit breaker to close to generate fault signals and feeding the fault signals back to the master controller,and the master controller sends opening and closing signals of the first / second alternating-current circuit breakers to the auxiliary control unit according to a set time interval to control openingand closing of the to-be-detected direct-current circuit breaker.

Description

technical field [0001] The invention relates to the technical field of circuit breaker detection, in particular to a detection device for breaking performance of a mechanical DC circuit breaker. Background technique [0002] In the application of power grid technology at this stage, with the development of a large number of DC-related power generation equipment and the establishment of flexible DC transmission projects, the importance of DC circuit breakers in power grid technology is getting higher and higher. For the development and development of DC circuit breaker equipment, it is necessary to pass the type test verification, including the breaking technology, and the reclosing test in the breaking technology test has high requirements for the power circuit that generates the simulated fault current. The time interval for the power supply required for the two breaks is extremely short. Generally, after the first break is completed, the power supply needs to be quickly pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
CPCG01R31/3272G01R31/3277
Inventor 黄波涛邹晓明周同
Owner SHANGHAI SIEYUAN HIGH VOLTAGE SWITCHGEAR
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