The parallel resistance device is a set of resistance cabinet comprehensive line selection device installed in parallel with the neutral point of the system and connected with the arc suppression coil. More effective and accurate selection of fault lines. In the arc-suppressing coil system, the parallel resistance integrated line selection device can be used to achieve 100% line selection accuracy. The parallel resistance device, or the parallel resistance cabinet, is composed of grounding resistors, high-voltage vacuum connectors, current transformers, current signal acquisition and conversion systems, resistance switching control systems, and supporting dedicated line selection systems.
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