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  • IEEE C57.12.40-2011

IEEE C57.12.40-2011

IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)

IEEE, 01/25/2012

Publisher: IEEE

File Format: PDF

$39.00$79.00


Published:25/01/2012

Pages:34

File Size:1 file , 550 KB

Note:This product is unavailable in Russia, Belarus

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 500GrdY/19 920 volts and below. These transformers are generally used for step-down purposes from underground primary cables and supply a secondary network system through network protectors. These transformers are typically installed below ground level.

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