本文介绍电容器负载合闸冲击电流和分闸滤波电容器组电压的计算，并通过实例加以说明。
The calculation of loaded closing striking current of capacity and opening filter capacity bank voltage is illustrated by a few examples.
设备自动保证过电流零点合闸，自动预置试验电压，试验效果好。
The equipment ensures automatic closing at current zero, preset test voltage automatically and the effect is fine.
发电机电压与系统电压之差必须足够小，避免合闸时发电机电枢绕组电流过大，对发电机联轴系统产生冲击。
The voltage between the system and generator must be small enough to ensure minor current in the armature winding of generator, avoiding the impact to the coupling shaft.
并通过理论分析得出了断路器分合闸线圈电流波形的基本特征。
The basic features of the coil current waveform of the circuit breaker are also obtained by theoretical analysis.
避免由于压差、频差和相角差太大，使的合闸时，发电机组电枢绕组电流过大，对发电机组联轴系统产生冲击。
The phase and frequency between the system and generator must be small enough to ensure minor current in the armature winding of generator, avoiding the impact to the coupling shaft.
对三相电容器的暂态过程进行了研究，提出采用接触器和小电流晶闸管组成混合开关，实现了合闸时无冲击电流及分断时无电弧。
This paper researches on three phase capacitor transients, presents a combined switch constructed of contactor and low current thyristors to realize non surge close and non arcing break.
在为胜利油田研制海底电缆铺设装置过程中，曾发生升压变压器合闸时过电流跳闸问题。
In the process of developing submarine cable laying installation for Shengli Oil Field, a certain problem has occurred with overcurrent tripping during switching on of step up transformer.
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
将零序电流加速保护与距离保护相配合得到自动重合闸加速保护综合方案，改善了重合闸后加速保护的性能。
According to the schemes, a general schemes for auto recloser accelerating protection is presented which improves performance of accelerating protection.
保护功能有三段过电流保护、反时限过流保护、三相一次检无压自动重合闸等。
The protection functions include three-section over-current protection, inverse-time over-current protection, three-phase one-shot no-voltage auto-recloser and so on.
同步关合是指断路器动、静触头在系统电压波形的指定相角处关合，以减小合闸操作的过电流和过电压的一种智能操作技术。
Synchronous closing is an intelligent control technique. It can make the moving and stationery contact-header of circuit breaker to close on the specified phase angle of the power system voltage wave.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
该继电器采用集成电路构成，集线路的速断保护、过电流保护及三相一次重合闸于一体。
The relay is made up of integrated circuits. The line instantaneous overcurrent protection and overcurrent protection are combined with the once 3-phase reclosure application to form a whole body.
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