该电力有源滤波器以主电流为控制对象，控制电路比较简单。
The filter takes the main current as a controlled object. Its control circuit is simple.
该方案将比值式电流制动作为变压器的主保护方案。
The new method takes specific value formula restraint as main protection of transformer.
该方案将比值式电流制动作为变压器的主保护方案。
The new method takes specific value formula restraint as main protection of transformer.
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