
【国外标准】 IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
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2025-04-28
- IEEE C57.12.40-2024
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适用范围:
This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of three-phase, 60 Hz, liquid-immersed, self-cooled, network transformers with a primary grounding switch. These transformers are rated 2500 kVA and below with high voltages of 34 500 V and below and secondaries of 600 V and below. These transformers are generally used for step-down purposes from underground primary cables and supply a secondary network… read more system through network protectors. These transformers are typically installed below ground level. read less
标准号:
IEEE C57.12.40-2024
标准名称:
IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
英文名称:
标准状态:
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发布日期:
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