Analysis of partial discharge characteristics under lightning impulse voltage in GIS | Zendy

Zhao Hongyi | Zendy

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Analysis of partial discharge characteristics under lightning impulse voltage in GIS

Author(s) -

Zhao Hongyi

Publication year - 2020

Publication title -

iop conference series earth and environmental science

Language(s) - English

Resource type - Journals

eISSN - 1755-1307

pISSN - 1755-1315

DOI - 10.1088/1755-1315/512/1/012125

Subject(s) - partial discharge , impulse (physics) , voltage , oscillation (cell signaling) , electrical engineering , electric shock , mechanics , materials science , acoustics , high voltage , shock (circulatory) , environmental science , physics , engineering , chemistry , biochemistry , quantum mechanics , medicine

It is important that carrying out field lightning shock withstand voltage test can ensure the safe operation of gas insulated switch. The insulation condition of GIS can be comprehensively evaluated by detecting partial discharge (PD) during the field shock withstand voltage test. In this paper, the partial discharge characteristics of a gas insulated switch salient defect under lightning impulse voltage with different oscillation frequencies are studied. According to the experimental results, when the oscillation frequency is low, the PD value of the system increases significantly, but the PDIV50 value of OLI voltage is low. As the oscillation frequency of OLI voltage increases, PDIV50 increases and the number of partial discharge decreases.

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