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【国外标准】 IEEE Approved Draft 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)

本网站 发布时间: 2025-04-28
  • IEEE PC57.12.40
  • 定价: 63元 / 折扣价: 54
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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 volts and below and secondaries of 600 volts and below. These transformers are generally used for step-down purposes from underground primary cables and supply a secondary… read more network system through network protectors. These transformers are typically installed below ground level. read less

基本信息

  • 标准号:

    IEEE PC57.12.40

  • 标准名称:

    IEEE Approved Draft 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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