Resistant to a serious imbalance between three-phase output, or even a relative no-load and normal energy-saving equipment.
能抗三相严重不平衡输出，甚至某相空载而设备正常节能。
Leakage current is very low after subjected to high temperature, no-load condition, or after long period of storage at normal temperature.
在高温无负荷或常温长期放置后，尚能保持良好的，低漏泄电流及特性。
Leakage current is very low after subjected to high temperature, no-load condition, or after long period of storage at normal temperature.
在高温无负荷或常温长期放置后，尚能保持良好的，低漏泄电流及特性。
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