过电流继电器是继电保护装置的一种，当负载电流超过整定值时，继电器动作。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
这种跳弧现象在一定的脉冲电流幅值和相应的脉冲电流时间产生。
This arc jumping phenomenon takes place at a certain amplitude of pulse current with a certain correlated pulse current time.
应经常检查高压直流电源内电流继电器，时间继电器的整定值是否正确，控制是否灵敏。
We should always check the high voltage DC power supply within the current relay, time relay setting value is correct, control is sensitive.
这是可能的，检查本线电流，电流值在事故，手术时间(最新的10倍)，定值等展出。
It is possible to check present line current, current value during accident, operation time (latest 10 times), setting value, etc. on display.
此整定原则以正常偏大方式整定电流、电压定值，其目的是在保证保护可靠性的前提下，增大瞬时速断保护的保护范围。
The new principle calculates current and voltage setting values, which are greater than normal values, to increase protection scope under the condition of assured protection reliability.
在高中压系统，充电保护电流定值是按躲过最小运行方式故障电流整定，并要求瞬时动作；
In high-middle voltage power system, the current setting of the charge-protection always bases on the fault current in the minimal operation mode, and the break should be snapped action.
计算书主要是对设计中的参数、短路电流及保护的整定值进行计算。
Calculated book is the parameter, short-circuit current and protective to worth surely to carry out calculation.
通过对比电缆整定的单位千米阻抗值和电压电流值，来确定线路上的故障点。
Power lines have set impedance per kilometre and using this value and comparing voltage and current the distance to a fault can be determined.
通过适当地选择S值，采样值差动保护对电流互感器（TA）饱和的影响具有一定的抵御能力，在工程实际中具有良好的应用前景。
Sampling value differential protection can guard against TA saturation by selecting appropriate value of S, and it has a well application value in engineering.
恒流方式时要求不论输入电压如何变化(在一定范围内)，流过该电子负载的电流恒定，且电流值可设定。
Constant current mode, regardless of the input voltage required to change (within a certain range), flows through the constant current electronic load, and the current value can be set.
该方法适用于小接地电流系统的各种中性点运行方式，并且现场安装简单、不需要定值整定。
This method is suited for various distribution system with different neutral grounding modes. Moreover, it can be easily used in site without adjusting protective setting.
该方法适用于小接地电流系统的各种中性点运行方式，并且现场安装简单、不需要定值整定。
This method is suited for various distribution system with different neutral grounding modes. Moreover, it can be easily used in site without adjusting protective setting.
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