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K=(voltmeter range*ammeter range*power factor)/wattmeter range

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12y ago
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6y ago

Multiply the CT and PT ratio to get the multiplying factor for the watt meter. If the CT ratio is 200:5 and PT ratio is 440:110, then Multiplying factor will be 40 x 4 = 160

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Q: How do you calculate watt meter constant?
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