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electronics and communication engineering measurements and instrumentation
1. Which of the following are needed both for protection and metering?
(A): Energy meters
(B): Instrument transformers
(C): Power factor meters
(D): Wattmeters
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By: guest on 02 Jun 2017 01.00 am
Instrument transformers are used to measure high currents and voltages. They also feed the relays for protection.
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