IEC 60076-3-1:1987

IEC 60076-3-1:1987

June 1987
International standard Cancelled

Power transformers. Part 3: Insulation levels and dielectric tests - External clearances in air

Specifies clearances in air between live parts of bushings on oil-immersed power transformers and in relation to objects on earth potential.

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International IEC standards

Publication date

June 1987

Number of pages

24 p.

Reference

IEC 60076-3-1:1987

Print number

1
Sumary
Power transformers. Part 3: Insulation levels and dielectric tests - External clearances in air

Specifies clearances in air between live parts of bushings on oil-immersed power transformers and in relation to objects on earth potential.
Standard replaced by (1)
IEC 60076-3:2000
March 2000
International standard Cancelled
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air

Gives insulation requirements for power transformers and the corresponding insulation tests for specific windings. Applies to single-phase and three-phase oil-immersed power transformers as defined in the IEC 60076-1. It Includes appendices on: partial discharge measurements during induced a.c. withstand voltage test on transformers; overvoltage transferred from a high-voltage winding to a low-voltage winding; information to be supplied with enquiries and orders. The contents of the corrigendum of December 2000 have been included in this copy.

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