C57.116-2014 - IEEE Guide for Transformers Directly Connected to Generators

Standard Details

Information on the selection and application considerations for the unit power transformer and unit auxiliaries power transformer is provided in this guide. Consideration is given to connections that include direct connection and connections through generator circuit breakers and load-break switches. The considerations referred to in this guide apply to hydroelectric and thermal electric generating stations. Various power transformer connections and possible operating problems under normal and abnormal conditions are treated. Phasing procedures, basic impulse insulation level selection, and loading practices are not covered.

Sponsor Committee	PE/TR - Transformers
Status	Active
Board Approval	2011-09-10
History	Published Date:2014-05-19

Additional Resources Details

PAR	Approved PAR

Working Group Details

Working Group	PwrTrans-WGC57.116 - Power Transformers - Directly Connected GSU Working Group
Working Group Chair	Weijun Li
Sponsor Committee	PE/TR - Transformers
Society	PE - IEEE Power and Energy Society
IEEE Program Manager	Malia Zaman
Active Projects	Active PC57.116 - Guide for Transformers Directly Connected to Generators This guide describes selection and application considerations for the unit power transformer and unit auxiliary power transformer. Consideration is given to connections that include direct connection and connections through generator circuit breakers and load-break switches. The considerations referred to in this guide apply to hydroelectric and thermal electric generating stations. Various power transformer connections and possible operating problems under normal and abnormal conditions are treated. Phasing procedures, basic impulse insulation level selection, and loading practices are not covered.
Existing Standards	Superseded C57.116-1989 - IEEE Guide for Transformers Directly Connected to Generators The selection, application, and specification considerations for the unit transformer and unit auxiliaries transformers are described, taking into account their connections, voltage and kilovoltampere ratings, and excitation and through-fault capabilities during possible operating conditions, both normal and abnormal. Consideration is given to direct connections and connections through generator breakers and load-break switches. Both hydroelectric and thermal electric generating stations are covered. Phasing procedures, basic impulse insulation-level selection, and loading practices are not covered.