External circuit breaker control system for high breaking ammeter
A circuit breaker and external technology, which is applied in the field of high-voltage breaker external circuit breaker control system, can solve the problems that cannot meet the requirements of smart grid circuit breakers, and achieve the effect of avoiding premature stop of pulses and precise control
Inactive Publication Date: 2017-05-31
合肥普望电子有限责任公司
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Problems solved by technology
With the development of smart grid, higher requirements are put forward for the functions of circuit breakers. The existing intelligent controllers of circuit breakers are generally based on microprocessors such as single-chip microcomputers and DSPs. The functions are mainly based on the basic three-stage protection. Differentiate by priority, complete the task with the highest priority first, and complete the tasks with gradually decreasing priority in turn. This implementation method can no longer meet the requirements of the smart grid for circuit breakers
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[0010] The present invention will be further described below in conjunction with accompanying drawing:
[0011] Such as figure 1 As shown, the control system of the external circuit breaker with a high-score breaker meter in this embodiment includes: a closing command generating circuit 1, an opening command generating circuit 2, a position acquisition unit 7, a testing unit 3, a driving unit 5 and a closing control The switch 8, the closing instruction generating circuit 1 is used to detect the closing instruction of the circuit breaker, and generates the closing pulse from the closing instruction; the opening instruction generating circuit 2 is used to detect the opening instruction of the circuit breaker, and generates the closing pulse. The gate command generates the opening pulse; the position acquisition unit 7 is used to collect the closing and opening positions of the circuit breaker; the test unit 3 is used to obtain the information of the position acquisition unit 7,...
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The invention relates to an external circuit breaker control system for a high breaking ammeter. The system comprises a switch-on / switch-off instruction generation circuit for detecting a switch-on / switch-off instruction of a circuit breaker and generating a switch-on / switch-off pulse according to the switch-on / switch-off instruction; a position collection unit for collecting switch-on and switch-off positions of the circuit breaker; a test unit for judging whether the switch-on and switch-off positions of the circuit breaker are qualified or not and outputting the switch-on / switch-off pulse to a drive unit; the drive unit for driving a switch-on / switch-off control switch; and the switch-on / switch-off control switch for receiving a control signal of a control switch and judges switch-on / switch-off information of the circuit breaker, thereby controlling a switch-on / switch-off action of the circuit breaker. According to the system, the output duration of the pulse is guaranteed not to be smaller than own necessary action time of the permanent magnet circuit breaker, and the problem that the switch-on / switch-off is unsuccessful due to the fact that the pulse is stopped untimely resulting from a detected switch-on / switch-off position information error can be effectively avoided.
Description
technical field [0001] The invention relates to a circuit breaker, in particular to a control system for a circuit breaker with an external high-voltage breaker meter. Background technique [0002] The circuit breaker is an important electrical equipment for the protection and control of the power system. The reliability, real-time performance and stability of its operation are directly related to the safety and stability of the power system. In recent years, circuit breakers have developed rapidly, which is mainly reflected in the intelligence of its control unit and real-time online detection. With the development of smart grid, higher requirements are put forward for the functions of circuit breakers. The existing intelligent controllers of circuit breakers are generally based on microprocessors such as single-chip microcomputers and DSPs. The functions are mainly based on the basic three-stage protection. Differentiate by priority, complete the task with the highest pri...
Claims
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IPC IPC(8): H01H33/59
CPCH01H33/59
Inventor 顾孙珺孙平陆华俊孙国庆
Owner 合肥普望电子有限责任公司