1) compensation of fundamental negative and zero
基波负序、零序
2) base-wave zero sequence
基波零序
1.
For this reason, double-frequency protection is adopted in the single phase earthing protection, that is, it used the base-wave zero sequence voltage principle is used to protect approximately 80% winding of the stator and the 3-time harmonic wave voltage principle to protect the stator s winding section around the generator s neutral point.
定子绕组的单相接地是发电机最常见的故障之一,为此,小浪底水力发电厂发电机定子单相接地保护采用了双频式保护,即用基波零序电压原理保护距机端约80%的定子绕组,而用3次谐波电压原理保护中性点附近的定子绕组。
3) base negative current
基波负序
4) fundamental zero-sequence voltage
基波零序电压
1.
The paper expounds principles of fundamental zero-sequence voltage protection for stator grounding as well as third harmonic wave protection for stator grounding and analyses the case of DGP supplied by GE in detail.
根据基波零序电压定子接地保护和三次谐波定子接地保护原理,以GE公司的DGP保护为例具体分析。
5) fundamental negative sequence voltage
基波负序电压
6) negative sequence extractor of the fundamental current wave
负序基波提取器
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