Based on the ping-pong type field grounding protection, it presents one-point-to-ground protection scheme by integrating the self-checking method of switches.
针对乒乓式励磁回路接地保护，结合开关自检方法提出了完整的一点接地保护方案；
Based on the ping-pong type field grounding protection, it presents one-point-to-ground protection scheme by integrating the self-checking method of switches.
针对乒乓式励磁回路接地保护，结合开关自检方法提出了完整的一点接地保护方案；
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