SSC JE Electrical Engineering 2012 Paper

Question : 120 of 200

Marks: +1, -0

In a balanced 3-phase system, the current coil of a wattmeter is inserted in line 1 and the potential coil across 2 and 3. If the wattmeter reads 100 W, the reactive power drawn by the 3-phase load is

173.2 VAR
50 VAR
100 VAR
141.4 VAR

Validate

Solution:

Q =

√3P

√3 ×100

= 173.2 VAR

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