1) two-point earth-fault with different phases
2点异相接地故障
1.
The characterists of several typical operating conditiongs of two-point earth-fault with different phases in low earth-fault current system are analyzed in this paper,the fault location algorithms based on symmetrical component method are presented.
分析了小电流接地系统中一些典型工况的2点异相接地故障的特点,并运用对称分量原理提出了响应的故障测距算法。
2) Arbitrary two points grounding faults
两点异相接地故障
3) same phase two points grounding
同相两点接地故障
4) two points different phases fault
两点异相故障
5) the single-phase breakdown earth phase
单相故障接地相
1.
In the three-phase power supply system in mining wells,the method to detect the single-phase breakdown earth phase in the system of neutral point unconnected to earth is the next to the phase with the highest voltage in the three-phase voltage is the breakdown phase.
在矿井三相供电系统中,中性点不接地系统中单相故障接地相的判断法:三相电压中以指示值最高相为依据,按相序顺序往下推移一相才是故障相。
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