电压只有去路没有回路，电流才有回路。电压就是两个点电势差值，不需要什么回路的，习惯叫法除外一般的，称电源或负载两端电压，很少称回路。
3.5电流回路current circuit 3.6电压回路voltage circuit 3.7（回路的、就断路器而言的）预期电流prospective current (of circuit and with respect to a circuitubreaker) ..
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交流电流电压回路测试 voltage circuit test
二次电压回路 secondary voltage circuit
电压回路储备 VLR
交流电压回路 AC voltage circuit
交流电流电压回路试验 AC current-voltage circuit test
回路电压定律 KVL
电压控制回路 voltage control loop
回路电压 loop voltage ; Circuit Voltage ; Vc
低电压闭锁回路 undervoltage blocking circuit
合理地变更PT零序电压回路接线和正确的操作，对再发生此类事故可减小事故损失。
Reasonable modification to zero-sequence voltage circuit and proper operation can minimize losses caused by faults of this kind, if it happens again.
分析基准电压回路的电路设计，通过增大并联电容或供电电源的容量，解决了动态工作下的零漂问题。
Based on the analysis of benchmark voltage circuit design, the zero drift in dynamic condition is solved by increasing capacitance of the parallel capacitor or the power supply.
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