non-effective grounding 非有效接地
effective grounding system 有效接地系统
non-effective grounding system 非有效接地系统
effective grounding of neutral 有効接地
neutral non-effective grounding 中性点非有效接地
The effective grounding methods are put forward, which are valuable to the development and use of electronic devices.
对电子设备的研制、改造、使用均有一定的参考价值。
The phase comparison between fault feeder and healthy feeder is one of important criteria in fault line selection for neutral non-effective grounding systems.
小电流接地系统发生单相接地故障时，故障线路与健全线路在特征频段内零序电流的相位差别是接地选线判据的重要依据之一。
Selecting the correct grounding system, carries on the inspection maintenance regularly to the electrical equipment, may effective prevent has the security accident.
采用正确可靠的接地系统，定期对电气设备进行检查维护可有效地防止安全事故的发生。
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