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IEEE STANDARD

ANSI/IEEE 345-1972 - IEEE Standard Test Procedure for Thermal Evaluation of Oil-Immersed Distribution Transformers

Description: The object of this test procedure is to establish a uniform method for investigating the effect of operating temperature on the life expectancy of oil-immersed distribution transformers. The results may be used, for example, to: (1) Provide data for selection of a limiting hot-spot temperature for rating purposes, which will provide reasonable life expectancy under normal operating conditions (2) Provide data which may serve as the basis of a guide for loading (3) Permit the comparative evaluation of a proposed insulation system, with reference to a system which has proven to be acceptable in service
  • Status: Superseded STD Help

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