IEEE C57.109
Guide for Liquid-Immersed Transformer Through-Fault-Current Duration
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| Organization: | IEEE |
| Publication Date: | 27 September 2018 |
| Status: | active |
| Page Count: | 24 |
scope:
This guide applies to transformers referenced in IEEE Std C57.12.00 as Categories I, II, III, and IV.1 It sets forth recommendations essential for the application of overcurrent protective devices applied to limit the exposure time of transformers to short-circuit currents (see IEEE Std C37.91™ [B2]).2 This guide is not intended to imply overload capability
Purpose
Protective devices such as relays and fuses have well-defi ned operating characteristics that relate fault magnitude to operating time. These characteristic curves should be coordinated with a comparable curve(s) applicable to transformers that relate duration and fault magnitude to withstand capability
Document History
IEEE C57.109
September 27, 2018
Guide for Liquid-Immersed Transformer Through-Fault-Current Duration
This guide applies to transformers referenced in IEEE Std C57.12.00 as Categories I, II, III, and IV.1 It sets forth recommendations essential for the application of overcurrent protective devices...
March 18, 1993
Guide for Liquid-Immersed Transformer Through-Fault-Current Duration
This guide applies to transformers referenced in IEEE Std C57.12.00-1993 as Categories I, II, III, and IV.
January 1, 1993
Guide for Liquid-Immersed Transformer Through-Fault-Current Duration
This guide applies to transformers referenced in IEEE Std C57.12.00-1993 as Categories I, II, III, and IV.
December 2, 1985
GUIDE FOR TRANSFORMER THROUGH-FAULT-CURRENT DURATION
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