Question about coupling capacitor voltage transformer.?
How does the capacitance of a coupling capacitor voltage transformer (CCVT) affect the overall function of the device. And what is the purpose of the capacitor in CCVT.
Answer:
CCVTs are used in very high voltage power installations to reduce a voltage down to something easier to handle for measurement purposes. A stack of capacitors within a large insulator is connected in series with a reference capacitor across which the measurement is taken. The original voltage can then be calculated as the total capacitance divided by the reference, times the measured voltage.
This use of capacitors as a voltage divider is similar in principle to resistance voltage dividers, but much more practical for high voltage applications. For further information see the link below.
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Answer:
CCVTs are used in very high voltage power installations to reduce a voltage down to something easier to handle for measurement purposes. A stack of capacitors within a large insulator is connected in series with a reference capacitor across which the measurement is taken. The original voltage can then be calculated as the total capacitance divided by the reference, times the measured voltage.
This use of capacitors as a voltage divider is similar in principle to resistance voltage dividers, but much more practical for high voltage applications. For further information see the link below.
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