Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A synchronous motor with a synchronous reactance of 12 ohms is operating with a current of 100 A at unity power factor supplying power to a large compressor. The phasor diagram for this operating condition is shown in the figure.
a) The field current is to be adjusted to bring the machine to a new operating point having 60 A of leading current and, since no change is to be made to the compressor, the power input and the100 A of in phase current will remain the same. Sketch the new phasor diagram for this condition on the diagram below, clearly showing the location of the tip of the new I and the tip of the new E.
b) Based on your phasor diagram, find the new values for the amplitudes of the current I and the internal voltage E.
c) With the machine running as in the original phasor diagram, what will be the current and power factor if the compressor load is reduced to zero without any change in the field current? Sketch a phasor diagram for this condition.
Athree-phase, 440-V, 60-Hz, four-pole induction motor operates at a slip of 0.025 at full load, with its rotor circuit short-circuited. This motor is to be operated on a 50-Hz supp
ferroelectric materials are charatrised by
RAL Rotate Accumulator Left Through Carry Instruction This instruction rotates the content of the accumulator towards left by one bit. The D 0 bit moves to D 1 bit moves
Give three reasons why a chamfer shouldn''t an "unimportant" dimension
Define the term assembler directives. An assembler directive is a statement to provide direction to the assembler to perform the function of assembly process. The assembler di
All semiconductors in their last orbit have (A) 8 electrons. (B) 2 electrons. (C) 4 electrons. (D) 6 electrons. Ans: All semiconductors in their
What is the main thing to look for in calculations of air gaps?
Question: a) Describe two mechanisms by which electrons can be excited from the valence band to the conduction band? b) Given that the direct-band gap energy for Gallium N
For large number of measurements the mean is calculated by taking a sample. Each sample that is taken has a mean. The mean of various sample difference from sample and are known to
Q. Determine the transfer function C(s)/R(s) of the nested-loop feedback system shown in Figure.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd