Capacitor coupled voltage transformer and its input voltage...

Details Capacitor coupled voltage transformer and its input voltage... Capacitor coupled voltage transformer and its input voltage...

2005-07-19

2005-07-19

Nguyen, Vinh (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

C324S11700H

Reexamination Certificate

active

06919717

ABSTRACT:
Accurate harmonic measurements on electrical power systems where the main instrument transformers are of the capacitor coupled voltage type (CVT type) is made possible by the provision of one or more current sensors (PQCS1, PQCS2). CVTs typically have a high voltage capacitor bank (CH) and a low voltage capacitor bank (CL). One or more current sensors (PQCS1, PQCS2) is/are positioned so as to measure capacitor current and from that the input voltage (Vin) of the CVT can be determined for each frequency.

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