The motor is driving a constant torque load at a speed of 570 rpm.
A 500-hp, three-phase, 2200 V, 60-Hz, 12-pole, Y-connected, wound-rotor
induction motor has the following parameters:
a. Calculate the load torque.
b. Calculate the motor speed when the source frequency is increased to 70 Hz.
c. Calculate the change in starting torque due to the frequency change.
You might also like to view...
A ____ is commonly a single device or server that attaches to a network and uses TCP/IP-based protocols and communications methods to provide an online storage environment.
A. storage area network B. network-attached storage C. remote journal D. virtual machine monitor
Many bactericides are copper-based
Indicate whether the statement is true or false
What does it mean if two signals are said to be in quadrature?
A. At a 90° angle B. Output is zero with no modulation C. One-half that for the Foster–Seeley circuit D. Phase-shift detection arises quite often
The section modulus of a frame is a measure of a frame's strength based on all of these factors EXCEPT:?
A. ?Height B. ?Width C. ?Thickness D. ?Length