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Explain the purpose of the following: (a) CT (Current transformer), (b) PT/VT (Potential Transformer/Voltage Transformer), (c) Relay,...

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Electrical Engineering

Explain the purpose of the following: (a) CT (Currenttransformer), (b) PT/VT (Potential Transformer/VoltageTransformer), (c) Relay, (d) Circuit Breaker.

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3.7 Ratings (417 Votes)
A Current transformerCT Current transformer is basically a step up transformer It is used to measure very high current levels It produces current in secondary proportional to its primary current Due to being a step up transformer its secondary current is less then primary current By using this phenomenon the high level of current can be dropped down to    See Answer
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