Question
Download Solution PDFWhat is the correction factor of the wattmeter at a lagging power factor?
(Where, φ is the phase angle between the voltage applied to the pressure coil and the current in the current coil and β is the angle between the voltage applied to the pressure coil and the current in the pressure coil.)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCorrection factor: The ratio of True reading (W t ) to Actual reading (W a ) is known as Correction factor of the wattmeter.
W t =
and, Wa =
Where φ is the phase angle between the voltage applied to the pressure coil and the current in the current coil and β is the angle between the voltage applied to the pressure coil and the current in the pressure coil
Correction factor =
Last updated on Jun 16, 2025
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