railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Measurement of Power
While measuring power in a 3 - ϕ load by two wattmeter method reading of the two wattmeter will be equal & opposite when
1
Power factor is unity
2
Load is balanced
3
Phase angle is between 60° & 90°
4
Load is purely inductive