SSC JE Electrical Engineering 2017 Set 3 Paper

Question : 162 of 200

Marks: +1, -0

Which of the following does a power factor meter indicate ?

Solution:

Power factor meter indicates, the current is leading or lagging the voltage.
Single phase power factor meter, W

\cosϕ=W/{E× I}

In three phase power factor meter

\cosϕ=W/{√3×E× I}

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