Required Assignment (Machine and Power)
A three phase, four poles, 380V, 50Hz, delta connected induction
motor has the following
parameters:
r1=1 r2=1.2 x1=1.5 x2=1.5 Rc=880 xm=440, mechanical losses 66 W.
if the motor runs at 1470 rpm, find:
1- Synchronous speed 2- Slip 3- Core losses power 4- Stator
copper losses 5- Air gap power 6- Rotor copper losses 7- Developed
power 8- Input current 9- Input power 10- Output power 11-
Efficiency 12- Developed torque 13- Output torque 14- Power
factor
A three phase, 50 Hz, 3000 V induction motor develops 600 HP.
The power factor being 0.85
lagging and efficiency 93%. A bank of capacitors is connected in
delta across the supply
terminals and power factor was raised to 0.95 lagging. Each of
capacitor unit is built of five
similar 600 V capacitors.
Find the value of each capacitor in the capacitor bank.
Hint:
Deadline to assign: Wednesday 27/5/2015 at 1:00 PM
Assigned to the following e-mail:
[email protected]
Subject of e-mail: machine and power assignment.
Assign in the body of e-mail:
- Your name. - Your class number. - Your seat number. - Pictures
of your solution or file of your solution.
This is the capacitor
unit which contains 5
similar capacitors
