IEEE C57.12.90: Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
DOD Adopted ANSI Approved Approved
This standard describes methods for performing tests specified in IEEE Std C57.12.00™ and other standards applicable to liquid-immersed distribution, power, and regulating transformers.1 It is intended for use as a basis for performance and proper testing of such transformers.
This standard applies to all liquid-immersed transformers, except instrument transformers, step-voltage and induction voltage regulators, arc furnace transformers, rectifier transformers, specialty transformers, grounding transformers, and mine transformers.
Transformer requirements and specific test criteria are not a part of this standard, but they are contained in appropriate standards, such as IEEE Std C57.12.00, ANSI C57.12.10 [B1],2 IEEE Std C57.12.20™, and IEEE Std C57.12.40™ [B10], or in user specifications.
The purpose of this standard is to provide test procedure information for tests specified in IEEE Std C57.12.00 and other standards applicable to liquid-immersed distribution, power, and regulating transformers. It is intended for use as a basis for performance and proper testing of such transformers.
1 Information on references can be found in Clause 2.
2 The numbers in brackets correspond to the numbers in the bibliography in Annex C.
- transformer tests
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