voltage to neutral

For an ungrounded neutral low voltage power system in mine, its insulance ( r), capacitance ( C) and leakage resistance ( R) to the ground are three important parameters in determining the zero sequence voltage.

对于中性点不接地的矿井低压电网，其对地绝缘电阻r，电容C和漏电电阻R，是决定零序电压的3个重要参数。

When the fault current and the transient over-voltage are synthetically considered, it may be proper that the value of neutral resistance should be 2 to 3 times of that of neutral point equivalent capacitive reactance.

综合考虑接地故障电流和暂态过电压，则中性点接地电阻宜取2～3倍的中性点对地等值容抗；

When the grid is highly balanced and the inductance of arc-suppression coil is adjusted continuously, thus making the neutral voltage maximum in 50 Hz, the inductive reactance of arc-suppression coil is equal to the capacitive reactance of the grid-to-ground.

当电网高度平衡时，连续调节消弧线圈电感，使中性点工频电压位移达到最大值，此时消弧线圈的感抗就等于电网的对地总容抗，由此计算出电容电流；

Resonant controller is applied and the neutral point current which caused the medium vector is introduced for feed forward control to eliminate low-frequency voltage ripples.

在中点电压控制器中采用谐振控制器以及加入中矢量对中点电流的作用作为前馈以消除中点电压中的三倍频分量。

It is an important technical problem to neutral grounding mode of the electric power system which associates with voltage level, network structure, and insulation level, reliability of power supply, protective relaying, electromagnetic interference, and personal safety.

电网的中性点接地与电压等级，网路结构、继电保护的状况、电网的绝缘水平、供电可靠性要求等都紧密相关。