This paper presents that the protection for the phase to phase fault should be composed of high frequency teleprotection channel and overreached distance relay.
提出只有将高频通道、超范围距离元件配合构成允许式纵联距离保护，才能保护同杆双回线跨线不接地故障。
This paper analyses the rule of variations measuring impedance of distance relay when phase to phase fault occurs between two lines on double circuit line on the same pole (DLSP).
从理论上分析了同杆并架双回线跨线不接地故障时距离继电器测量阻抗的变化规律。
Based on phase component model of transmission line, a method to calculate inter-line fault occurred in parallel circuits on same tower is proposed by use of phase component method.
基于输电线路的相分量模型，提出了利用相分量法对同杆并架线路上的跨线故障进行计算的方法。
This paper analyzes and researches a serious load loss accident arising from complex phase-to-phase grounding short-circuit fault.
分析和研究了一起复杂相间接地短路故障引起的大量负荷瞬间损失事故。
The fault phase selector discussed is based on the result that the fault component of sound phases is zero when a single-phase-to-ground fault occurs.
文中所探讨的相电流突变量选相元件，是利用单相接地故障时，两健全相相间电流突变量为零这一特征来得到的。
When a fault occurs on one phase of a 3-phase, 4-wire system, the other two phases rise in voltage relative to ground (about 20%).
当故障发生在3相4线系统中的一相时，其它两相的对地电压就升高（约升高20%）。 好评（0）
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状，提出基于非故障相暂态电流的单相接地故障定位的思想。
Combined with the research status of single-phase-to-ground fault locating for small current grounding system, a new idea based on non-fault-phase transient current is presented.
针对小电流接地系统单相接地故障定位的研究现状，提出基于非故障相暂态电流的单相接地故障定位的思想。
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