An information detection device and detection method for a DC feeder circuit breaker
An information detection, DC feeder technology, applied in circuit breaker testing and other directions, can solve problems such as failure to make early warning, high cost, complex signal acquisition and uploading process, etc., to improve market competitiveness, reduce detection costs, increase The effect of space utilization
Active Publication Date: 2017-04-12
烟台东方电子玉麟电气有限公司
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Problems solved by technology
[0006] The invention provides an information detection device and detection method for a DC feeder circuit breaker. The technical problem to be solved is the high cost, space occupation, signal The collection and upload process is complicated, and fault warning cannot be made
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[0061] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0062] In a specific embodiment, such as figure 1 As shown, an information detection device for a DC feeder circuit breaker includes a circuit breaker QF1, a shunt RS1, a circuit breaker current detection circuit 1, a circuit breaker overload detection circuit 2, a circuit breaker short circuit detection circuit 3, and a circuit breaker position detection circuit 4 , processor circuit 5 and communication interface circuit 6.
[0063] The positive input terminal of the circuit breaker QF1 is connected to the positive bus terminal HM+ of the DC power supply, the negative input terminal of the circuit breaker QF1 is connected to one end of the shunt RS1, and the other end of the shunt RS1 is connected to the negative b...
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The invention relates to an information detection device and method for a DC feeder line circuit breaker. The device and method are low in cost, high in space utilization rate, and capable of achieving fault early warning, and information uploading is convenient. The device comprises the circuit breaker, a shunt, a circuit breaker current detection circuit, a circuit breaker overload detection circuit, a circuit breaker short circuit detection circuit, a circuit breaker position detection circuit, a processor circuit and a communication interface circuit; the circuit breaker current detection circuit detects working current signals of the circuit breaker and amplifies the working current signals, the circuit breaker overload detection circuit compares the amplified working current signals and an overload limiting value to obtain an overload level signal, the circuit breaker short circuit detection circuit compares the working current signals and a short circuit limiting value to obtain a short circuit pulse signal, the circuit breaker position detection circuit detects position level signals of the circuit breaker, and the processor circuit reads the position level signals and the overload level signal and captures the short circuit pulse signal for processing to obtain position information, overload information and short circuit tripping information of the circuit breaker.
Description
technical field [0001] The invention relates to the technical field of monitoring a DC feeder system, in particular to an information detection device and a detection method for a DC feeder circuit breaker. Background technique [0002] In the power supply system of electric power, rail transit, petrochemical and other industries, the DC feeder panel provides reliable DC power supply for various control, protection and operation equipment, and each electrical equipment is connected to the DC power bus through the DC feeder circuit breaker. Since the power supply is the basis for the normal operation of various electrical equipment, users are required to monitor the position and tripping information of the feeder circuit breaker, so as to understand the working information of the feeder panel in real time, and find and eliminate faults in time. If the overload information of the circuit breaker can be detected, the user can take processing measures before the circuit breaker ...
Claims
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IPC IPC(8): G01R31/327
Inventor 张国君李晓伟纪涛马晓涛薛安忠杨宁
Owner 烟台东方电子玉麟电气有限公司