ZHAO RU-GUO. Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2007, (3): 46-47.
ZHAO RU-GUO. Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2007, (3): 46-47.DOI:
a grounding-switch is set in the front of the middle transformer primary turn.During measurement on site
the front of the middle transformer primary turns becomes on grounding through operating the outside handle to close the grounding-switch.Thus the capacitances of C13 and C2 and dielectric loss can be measured conveniently using inverse connecting method
the disadvantages of self-excitation method can be avoided.
关键词
电容式电压互感器(CVT)中间变压器接地刀闸
Keywords
capacitor voltage transformer(CVT)Middle TransformerGrounding-switch