T/CEEIA 294-2017 Natural ester transformer insulation system for high temperature electrical insulation thermal evaluation
T/CEEIA 294-2017 Natural ester transformer insulation system for high temperature electrical insulation thermal evaluation
Basic Information
Scope
Scope: This standard specifies the heat resistance rating of the electrical insulation system of immersion-type transformers, the requirements for high-temperature electrical insulation systems used in natural ester transformers, and the test methods for thermal evaluation of transformer winding electrical insulation systems. This standard applies to the thermal evaluation of electrical insulation systems of natural ester transformers with voltages of 110 kV and below. For the thermal evaluation of electrical insulation systems of natural ester transformers with other voltage levels, the tests can be conducted by referring to this standard. Main technical content: This standard specifies the heat resistance rating of the electrical insulation system of immersion-type transformers, the requirements for high-temperature electrical insulation systems used in natural ester transformers, and the test methods for thermal evaluation of transformer winding electrical insulation systems. This standard applies to the thermal evaluation of electrical insulation systems of natural ester transformers with voltages of 110 kV and below. For the thermal evaluation of electrical insulation systems of natural ester transformers with other voltage levels, the tests can be conducted by referring to this standard.