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Traditionally corona testing has been performed in laboratories by mounting a single phase mock-up of the conductor/hardware/insulator assembly at a given height above the ground and applying 110% of the rated line-to-ground operating voltage. If the test setup is shown to be free of corona by this test, then it is considered that the assembly will be free of corona under operating conditions. This...
The paper describes a series of visual corona tests performed in accordance with the voltage gradient test method. The tests were performed on insulator assemblies designed for use on AEP's 6-conductor bundle 765-kV transmission line
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