A 430V, 3-phase Induction motor has output of 36HP and operates at power factor of 0.8 lagging with an efficiency of 84%. Calculate the reading on each of the two wattmeter connected to measure the input.  The value of  P1 is = The value of  P2 is =

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) A 430V, 3-phase Induction motor has output of 36HP and operates at power factor of 0.8 lagging with an efficiency of 84%. Calculate the reading on each of the two wattmeter connected to measure the input. 

The value of  Pis =

The value of  Pis =

C2 (ii) Three inductive coils each of inductance 58 mH are connected in star to a 3 phase 215V, 50 Hz supply. Calculate the inductance of each coil, which when connected in delta to the same supply will take the same line current.

Reactance Xc is =

The Inductance L =

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