ANSI C37.121-1989 标准详情
- 标准号:ANSI C37.121-1989
- 中文标题:开关设备.成套变电所.要求
- 英文标题:Switchgear - Unit Substations - Requirements
- 标准类别:美国国家ANSI
- 发布日期:1989
This standard covers the requirements for three-phase unit substations for step-down operation in the range of112.5 kVA through 10 000 kVA at primary voltages of 601 volts through 38 kilovolts.The standard is intended for use as the basis for the coo
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