Standard

IEEE 522-1977

Feb 1977 Revised

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Abstract

New IEEE Standard - Superseded. Many alternating-current rotating electric machines are designed to have multiturn formwound stator coils. In these cases, the winding has two separate but interrelated insulating barriers: one (turn insulation) between the various turns and the second (ground insulation) between the turns and ground. Failure of either of these barriers will prematurely terminate the service life of the machine. A test level, twice rated voltage plus 1 kV, for the ground insulation has been in existence for many years. This guide suggests methods and test levels for the turn insulation.

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Standard from IEEE
Published: February 25 1977
Withdrawn: December 5 1991
Document type: IS
Pages
ISBN: 978-1-5044-0382-5

Publisher: IEEE
Distributor: IEEE
National Committee: IEEE Power and Energy Society / Electric Machinery

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Referred by: IEEE 792-1995
Revised by: IEEE 522-1992

IEEE 522-1977

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IEEE 522-1992

IEEE 522-1977

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