ČSN EN IEC 60076-22-5

Power transformers - Part 22-5: Power transformer and reactor fittings - Electric pumps for transformers

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Detail information

Designation: ČSN EN IEC 60076-22-5

Publication date: 01/09/2021

Pages: 36

Country: Czech technical standard

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Anotation

This part of IEC 60076 covers electric pumps used in the cooling circuits of power transformers and reactors. It applies to electric pumps mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation.
It outlines the operation requirements for the electrical and hydraulic performance, mechanical design, routine testing and type testing. Additionally, performance and dimensions of preferred sizes of pump sets are specified in informative annexes.
The pumps covered in this document are rotodynamic pumps driven by a squirrel cage induction motor that is immersed in the insulating liquid.
Pump sets conforming to this document can be of in-line or end suction design

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