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HIGH-FIDELITY VOLTAGE MEASUREMENT USING A CAPACITANCE-COUPLED VOLTAGE TRANSFORMER
HIGH-FIDELITY VOLTAGE MEASUREMENT USING A CAPACITANCE-COUPLED VOLTAGE TRANSFORMER
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机译:使用电容耦合电压互感器的高精度电压测量
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摘要
The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. An intelligent electronic device (IED) in electrical communication with the first current measurement device generates a voltage signal based on the electrical signal from the current transformer. The IED detects a traveling wave based on the first voltage signal; and analyzes the traveling wave to detect a fault on the electric power delivery system.
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