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IEEE Standard for Voltage-Endurance Testing of Form-Wound Coils and Bars for Hydro Generators
Revision Standard - Active.
The test parameters and acceptance criteria for voltage-endurance testing of form-wound bars and coils for use in large hydro generators are covered in this standard.
This standard applies to voltage-endurance testing of form-wound stator winding bars and coils having a mica-based insulation system with thermo-setting polyester and/or epoxy resins used in hydro generators and pumped storage generators operating in air.
The equipment has a rated line-to-line voltage above 4000 V and a frequency of 50 Hz or 60 Hz.
The purpose of this standard is to define the test parameters for the voltage-endurance test and the number of specimens to be used for each test.
It also defines the acceptance criteria and the procedures for retesting in the event of a premature failure during the voltage-endurance test.
The details of the test procedure are described in IEEE Std 1043™, Recommended Practice for Voltage-Endurance Testing of Form-Wound Bars and Coils.
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