A pump station uses an induction motor that requires a complex power of S1 = 55<30° kVAand a synchronous motor that has a complex power of S2 = 60<15° kVAThe reactive power (kVAr) required by the pump station is most nearly I got 105.6+j43. Is this correct? Thank you

A 6 pole DC wave wound generator has 26 armature conductors with flux per pole is 21 mWb and the e.m.f generated is 63 V, then the speed of the machine is O 6.55 rps O 0.66 rps O 38.46 rps O 115.38 rps The Auto transformers are used to provide a variable voltage output Select one: O True O MEEZ11ON-Electrical O False

The terminal voltage of a dc series generator running at rated speed and no load is equal to * rated voltage half its rated voltage O zero O a very little voltage

A20 The speed at which the magnetic field of a 3-phase induction motor rotates is called the

Calculate the voltage per phase for a 1500 rpm, 4 pole alternator having a double layer winding with 16 turns per coil. The slots per pole phase are 8 and the coil span is 20 slots. The phase spread is 60o and the flux per pole is 25.8 milli webers.

Determine the value of the capacitor to raise the power factor to unity when two induction motor must be connected to a capacitor . The first motor is twenty-four kilo watts and power factor 0.8, while the other is forty  kilo watts and power factor 0.95.

The part of rotor resistance of a 3-phase induction motor which represents electrical equivalent of mechanical load on the motor is O R2 (1- 1/S) O R2 (1-S) O R2 O R2 (1/S -1)

A6 pole DC lap wound generator has 28 armature conductors with flux per pole is 27 mWb and the e.m.f generated is 57 V, then the speed of the machine is O 7540 rps O 6.06 rps O 7540 rps O 0.61 rps In CRO, the circuit that provides a uniform time scale against another voltage and it applied across the vertical deflection plates is O Sweep generator O Intensity grid O Focus grid O Accelerating anode The Auto transformers are used to provide a variable voltage output. Select one: O True O False

The rotor winding of the induction motor at no load condition is equivalent to connected to an inductive load short circuited connected to a resistive load O open circuited

List 3 differences between how 3 phase induction motors and single phase induction motors work.