Analysis and Treatment of Measurement Anomalies of 35 kV Outdoor Combined Instrument Transformer
The faults of combined instrument transformer are greatly harmful to safe operation of power system,and also cause inaccurate electricity measurement.In this paper,by analyzing the PT burning caused by repetitive occurrences of overvoltage in a 35 kV outdoor combined transformer and activation of high-voltage fuse,corresponding effective solutions are proposed and implemented,and electricity refund and completion are conducted with respect to inaccurate measurement results,ensuring safe operation and fair measurement of power grid.
combined transformerfaultsolutionelectricity payment refund and completion
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