Calculation method of stray current and neutral point dc current of transformer caused by stray current in metro
A transformer neutral point, stray current technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve problems such as quantitative analysis of numerical relationships, and achieve the effect of fast iteration
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[0049] The content of the present invention will be further described and explained below in conjunction with the accompanying drawings.
[0050] figure 1 It is a flowchart of the present invention.
[0051] Such as figure 2 As shown, in the subway stray current monitoring system, the stray current leaked from the rails will be collected by the drainage network, and returned to the traction substation after the diode of the drainage cabinet is turned on. However, when the DC stray current interference is serious, the stray current The current is difficult to be fully collected and partly leaks into the ground. This part of the current flows into the grounding network of the surrounding substation A through the soil, enters the neutral point grounded transformer A', flows into the transformer B' of another substation B after passing through the transmission line, and finally flows into the grounding neutral point of the transformer B' The ground grid returns to the negativ...
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