I A 550-kW, 2400-V, six-pole, 60-Hz three-phase induction motor has the following
equivalent-circuit parameters in ohms-per-phase-Y referred to the stator:
R1 = 0.108 & R2 = 0.296 & X1 = 1.18 & X2 = 1.32 & Xm = 48.4
The motor will be driven by a constant-V/Hz drive whose voltage is 2400 V at a
frequency of 60 Hz.
The motor is used to drive a load whose power is 525 kW at a speed of 1138 r/min
and which varies as the cube of speed. What will be the motor speed as the drive
frequency is varied to 20, 30, 40 and 50 HZ

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

A21-tooth spur pinion mates with a 28-tooth gear. the diametral pitch is 3 teeth/in and the pressure angle is 20°, find the following values: the addendum, dedendum, circular pitch, tooth thickness, and base circle diameters.

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference