Compute the efficiency at one-half load, Electrical Engineering

Assignment Help:

Q. A certain 10-hp, 230-V motor has a rotational loss of 600 W, a stator copper loss of 350 W, a rotor copper loss of 350 W, and a stray load loss of 50 W. It is not known whether the motor is an induction, synchronous, or dc machine.

(a) Calculate the full-load efficiency.

(b) Compute the efficiency at one-half load, assuming that the stray-loss and rotational losses do not change with load.


Related Discussions:- Compute the efficiency at one-half load

Microprocessors, three application of microprocessor

three application of microprocessor

8 bit data to register - move immediate instruction , 8 bit  data to Regi...

8 bit  data to Register   This form  of the  instruction is used to copy 8 bit  data directly  to the register  location specified in  the instruction. The  instruction format i

Digital ecectronics, DISIGN A FENITE STATE MACHINE TO DETECT THE SEQUENCE 1...

DISIGN A FENITE STATE MACHINE TO DETECT THE SEQUENCE 10110

Economic analysis of hydropower, find the net value of power if an average ...

find the net value of power if an average value of energy is assumed to be $0.05/KWh, the capacity value is $30/kw-yr ...

Analog & Digital Filtering, 1) Assume that we are given the continuous-time...

1) Assume that we are given the continuous-time signal xa (t) = xa1 (t) + xa2 (t) + xa3 (t), where, xa1 (t) = 2 + cos3 (2pf1 t + p 3 ) + 2 cos(2pf2 t), xa2 (t) = 2 cos(2pf3 t)

Determine the open-circuit output voltage, Q. Determine the open-circuit ou...

Q. Determine the open-circuit output voltage v o of the system shown in Figure as a function of the input voltage v i .

Evaluate apparent depth of a needle, Q. A tank is filled with water to a he...

Q. A tank is filled with water to a height of 12.5cm.The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be 9.4cm.What is the refractive i

What is a clipper circuit, Q. What is a clipper circuit? Clipping circu...

Q. What is a clipper circuit? Clipping circuits are linear wave shaping circuits. The main function of 'clipper' is that it clips off a part of input waveform i.e., it cut off

Determine the minimum needed frequency range, The operating frequency range...

The operating frequency range of a superheterodyne FMreceiver is 88-108MHz. The IF and LO frequencies are so chosen that f IF LO .Ifthe image frequency f  c must fall outside of

Pdc, disadvantages of shunt&series clippers

disadvantages of shunt&series clippers

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd