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

What is the colour of the light emitted from the led, Question: a) Des...

Question: a) Describe five advantages of LED lighting over conventional incandescent lighting. b) State two impairments that reduces the radiant flux of a surface-emitting

Cmp compare instruction , CMP Compare Instruction This instruction is ...

CMP Compare Instruction This instruction is used to compare the contents  of register  or memory  with accumulator the contents of the operand remain  unaffected. There are tw

Inductive coupling, #question. i want design of inductive coupling to trans...

#question. i want design of inductive coupling to transfer power @ 2 watt in air gap of 5mm radial distance..

Test quipment, The frequency of an oscillator may be measured by an oscillo...

The frequency of an oscillator may be measured by an oscilloscope with a callbrated time base(True/False)

What do you mean by pipelining in an 8086 processor, What do you mean by pi...

What do you mean by pipelining in an 8086 processor? The computer is composed of two kinds that operate  asynchronously single part called a BIU in the 8086,fetches instruction

Explain idiv instructions in 8086 family, Explain IDIV instructions in 80...

Explain IDIV instructions in 8086 family with example and their effect on flag. IDIV: It used to divide a 16-bit signed number with an 8-bit signed no. or 32 bit signed numb

Dc motor, Why rhehostat is not used in the field of dc series motor

Why rhehostat is not used in the field of dc series motor

Design a multiplexer and anomalous signals, 1. The size of the multiplexer ...

1. The size of the multiplexer used to implement a truth table can be cut in half (e.g. 4 inputs instead of 8) if one of the variables is used as an input instead of being connecte

Show application of bistable multivibrator, Q. Show Application of bistable...

Q. Show Application of bistable multivibrator? · Bistable multivibrator is used as counters and storing of binary information. · It is used as frequency divider in timing ci

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