Corona Test for UHVAC Rigid Jumper

The fittings of rigid jumpers are the most complex parts of transmission line construction, but their corona is more severe than normal fittings, especially for the UHV rigid jumper. So configuration and its corona problem of different type rigid jumpers must be researched. We figured out the electric field of rigid jumper under actual operation condition and the simplified simulation arrangement, and proposed a test model by simplified simulation arrangement and the correction factor. Moreover we proposed the standard voltage for UHV rigid jumper. By carrying out the corona test under actual conditions and the simplified simulation arrangement, the test method of simplified simulation arrangement is proved to be effective.