1 option

ANSI C57.12.20-1997 : American National Standard for Transformers - Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller, High Voltage 34500 Volts and Below: Low Voltage, 7970/13800Y Volts and Below / Institute of Electrical and Electronics Engineers.

IEEE Xplore (IEEE/IET Electronic Library - IEL) Available online

IEEE Xplore (IEEE/IET Electronic Library - IEL)
Format:
Language:
English
Subjects (All):
Physical Description:
1 online resource (51 pages)
Other Title:
  • C57.12.20-1997 - American National Standard for Transformers - Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller
  • ANSI C57.12.20-1997
  • American National Standard for Transformers - Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller
Place of Publication:
New York, NY : IEEE, 2002.
Summary:
Superseded by IEEE Std C57.12.20-2005.This standard covers certain electrical, dimensional, and mechanical characteristics and takes into consideration certain safety features of single- and three-phase, 60-Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, with high voltages 34500 volts and below and low voltages 7970/13800Y volts and below. Such transformers may include one or more of the following features: (1) High-voltage, overcurrent protection; (2) High-voltage, overvoltage protection. (3) Low-voltage, overcurrent protection; (4) Low-voltage, overvoltage protection.
Notes:
Description based on publisher supplied metadata and other sources.
ISBN:
0-7381-3623-9

The Penn Libraries is committed to describing library materials using current, accurate, and responsible language. If you discover outdated or inaccurate language, please fill out this feedback form to report it and suggest alternative language.