Why there is series of resistors connected to pressure coil of watt meter?
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hey here is your answer .
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Pressure coil of wattmeter is to calculate voltage of line, so connected across line in parallel.
Higher resistance give more accurate voltage reading, So, we connect many resistor in series so that resultant resistance across line should be high and no(very less) current should pass through it and all current should force to pass through current coil, this will lead accurate reading of current too.
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Pressure coil of wattmeter is to calculate voltage of line, so connected across line in parallel.
Higher resistance give more accurate voltage reading, So, we connect many resistor in series so that resultant resistance across line should be high and no(very less) current should pass through it and all current should force to pass through current coil, this will lead accurate reading of current too.
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