IEEE C37.121-1989 标准详情
- 标准号:IEEE C37.121-1989
- 中文标题:对于开关单元变电站要求美国国家标准代替NEMA c37,121-1989
- 英文标题:american national standard for switchgear unit substations requirements replaces nema c37.121-1989
- 标准类别:国际电工协会标准IEEE
- 发布日期:1989-01-01
Covers the requirements for three-phase unit substations for step-down operation in the range of 112.5 kVA through 10000 kVA at primary voltages of 601 V through 38 kV. Intended for use as the basis for the coordination of equipment by assisting in t
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