CURRENT coil carrying potential coil current, because of this additional flux produced in the current coil.It links with a potential coil INDUCES an emf and causes the current in a potential coil because of this power loss is present in the potential coil.In case the load current is large and the power factor is small, the error caused by the pressure coil in the L-C short wattmeter is large.Hence, in wattmeter is DESIGNED for low power factor measurements.Figure: LPF wattmeter with compensating coilTo compensate for the power loss in the pressure coil,compensating coil with an equal number of turns of the current coil is connected in SERIES opposition to the potential coil or pressure coil.Compensating coil REQUIRES only for LC connection not for MC connection.

"> CURRENT coil carrying potential coil current, because of this additional flux produced in the current coil.It links with a potential coil INDUCES an emf and causes the current in a potential coil because of this power loss is present in the potential coil.In case the load current is large and the power factor is small, the error caused by the pressure coil in the L-C short wattmeter is large.Hence, in wattmeter is DESIGNED for low power factor measurements.Figure: LPF wattmeter with compensating coilTo compensate for the power loss in the pressure coil,compensating coil with an equal number of turns of the current coil is connected in SERIES opposition to the potential coil or pressure coil.Compensating coil REQUIRES only for LC connection not for MC connection.

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In a low power factor wattmeter compensating coil is connected:

Electrical Engineering Indicating Instruments in Electrical Engineering . 8 months ago

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Compensation coil in LPF wattmeter:In L.C connection CURRENT coil carrying potential coil current, because of this additional flux produced in the current coil.It links with a potential coil INDUCES an emf and causes the current in a potential coil because of this power loss is present in the potential coil.In case the load current is large and the power factor is small, the error caused by the pressure coil in the L-C short wattmeter is large.Hence, in wattmeter is DESIGNED for low power factor measurements.Figure: LPF wattmeter with compensating coilTo compensate for the power loss in the pressure coil,compensating coil with an equal number of turns of the current coil is connected in SERIES opposition to the potential coil or pressure coil.Compensating coil REQUIRES only for LC connection not for MC connection.

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Posted on 28 Oct 2024, this text provides information on Electrical Engineering related to Indicating Instruments in Electrical Engineering. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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