ANSI C57.12.22-1993 (R1998)
American National Standard for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers With High-Voltage Bushings, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below

Standard No.
ANSI C57.12.22-1993 (R1998)
Release Date
1993
Published By
American National Standards Institute （ANSI)
 
Scope
This standard is intended for use as a basis for determining performance, interchangeability, andsafety of the equipment covered, and to assist in the proper selection of such equipment.This standard covers certain electrical, dimensional, and mechanical characteristics and takesinto consideration certain safety features of three-phase, 60 Hz., mineral-oil-immersed, self-cooled, padmounted,compart...

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Standard and Specification

IEEE/ANSI C57.12.22-1995 American National Standard for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers With High-Voltage Bushings, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below ANSI C57.12.22-1993(R1998 American National Standard for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers With High-Voltage Bushings, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below IEEE Unapproved Draft Std PC57.12.38/D6.3, Aug 08 IEEE Draft Standard for Padmounted Type, Self-Cooled, Single Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 Volts and Below, Low Voltage, 240 ANSI C57.12.26-1987 American National Standard for Transformers- Pad-Mounted Compartmental -Type, Self-Cooled, Three-Phase Distribution Transformers for Use With Separable IEEE PC57.12.38/D1.4, October 2013 IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low IEEE Unapproved Draft Std PC57.12.38/D6.4, Mar, 20 IEEE Draft Standard for Padmounted Type, Self-Cooled, Single Phase Distribution Transformers; High voltage, 34 500 GrdY/19 920 Volts and below, Low voltage, 240 IEEE Unapproved Draft Std PC57.12.38/D6.4, Mar, 2009 IEEE Draft Standard for Padmounted Type, Self-Cooled, Single Phase Distribution Transformers; High voltage, 34 500 GrdY/19 920 Volts and below, Low voltage, 240 IEEE PC57.12.38/D2.0, April 2013 IEEE Approved Draft Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 V and Below, Low IEEE PC57.12.38/D2.8, October 2022 IEEE Draft Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below


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