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UPF and LPF Wattmeters

How is UPF Wattmeter different from LPF Wattmeter?
Asked by: maheedhara | Member Since Mar-2009 | Asked on: Mar 29th, 2009

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mohann2008

Answered On : Apr 7th, 2009

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Unit Power Factor is used to measure the high current, but Low Power Factor is used to measure the low current.

  
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The UPF wattmeter is used to measure the power with better power factor. the LPF wattmeter is used to measure the power with lower power factor(<0.5).

  
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sharath

Answered On : Oct 28th, 2011

LPF watt meter is used for measuring power in highly inductive circuits & UPF watt meter is used for measure power in resistance circuit in which the power factor ranges from 0.5 to unity.

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