Urban rail traction power supply system and urban power main transformer direct current bias synchronous monitoring system
A traction power supply system, DC bias magnetization technology, applied in voltage/current isolation, measurement of electrical variables, measurement of current/voltage, etc. Novel technical content and simple effect on site
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[0022] figure 1 It is shown that a specific embodiment of the present invention is a synchronous monitoring system for urban rail traction power supply system and urban power main transformer DC bias magnetism, which consists of:
[0023] The entire synchronous monitoring system is divided into three subsystems: the neutral point current monitoring subsystem of the power main transformer 1, the urban rail drainage network current monitoring subsystem 2, and the comprehensive analysis subsystem 3; the urban rail drainage network current monitoring subsystem 2 The hardware consists of Hall sensor 17 / 18, signal conditioning board 19 / 20, data acquisition card 21 / 25, GPRS wireless transmission module 29 / 30, and industrial computer 31; System 1 hardware consists of Hall current sensor 5 , signal conditioning board 6 , data acquisition card 7 , and industrial computer sequentially constitute 11 ; said synchronous comprehensive analysis subsystem 3 hardware consists of background serv...
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