negative phase sequence voltage 负相序电压 ; 负序电压

zero-phase sequence voltage 零相序电压

xero phase sequence voltage 零序电压

phase sequence voltage relay 相序电压继电器

phase-sequence voltage relay 相序电压电驿

zero phase sequence voltage 零相序电压

negative e phase sequence voltage 负相序电压

positive phase-sequence voltage relay 正相序电压继电器

positive phase-sequence voltage system 正序电压系统