Inactive-Withdrawn Standard

IEEE/ANSI C57.12.24-1994

American National Standard for Transformers-- Underground-Type Three-Phase Distribution Transformers, 2500 kVA and Smaller, High Voltage, 34 500 GrdY/19 920 Volts and Below, Low Voltage, 480 Volts and Below - Requirements

1.1 This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and safety of the equipment described, and to assist in the proper selection of such equipment. NOTE – Refer to the latest Federal Regulations concerning polychlorinated biphenyls (PCB) contamination in transformers. 1.2 This standard describes certain electrical and mechanical characteristics and takes into consideration certain safety features of three-phase, 60-Hz, liquid-immersed, self-cooled, underground-type distribution transformers rated 2500 kVA and smaller with high voltages of 34 500GrdY/19 920 volts and below and with low voltages of 480 volts and below. These transformers are generally used for step-down purposes from an underground primary cable supply and are suitable for occasional submerged operation. 1.3 This standard does not cover the electrical and mechanical requirements of any accessory devices that may be supplied with the transformer.

Sponsor Committee
PE/TR - Transformers
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Status
Inactive-Withdrawn Standard
Superseded by
C57.12.24-2000
Board Approval
1994-03-17
History
Withdrawn:
2001-01-15
Published:
1994-05-24

Working Group Details

Society
IEEE Power and Energy Society
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Sponsor Committee
PE/TR - Transformers
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No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
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