Determine the efficiency of wye-connected synchronous motor

Assignment Help Electrical Engineering
Reference no: EM13256423

A 400-V three-phase, wye-connected synchronous motor delivers 12 hp at the shaft and operates at 0.866 lagging power factor. The total iron, friction, and field copper losses are 1200 W. If the armature resistance is 0.75ohm per phase, determine the efficiency of the motor.

Reference no: EM13256423

Questions Cloud

Calculate the percent voltage regulation of the generator : A 60 kVA, three-phase, wye-connected, 440 V, 60 Hz synchronous generator has a resistance of 0.15ohm and a synchronous reactance of 3.5ohm per phase. At rated load and unity power factor, calculate the percent voltage regulation.
First-borns make the best entrepreneurs : Suppose you came across an article in a magazine with the following title: “First-Borns Make the Best Entrepreneurs.” Reading the article, you discover that it contends that entrepreneurs who are the oldest child in their family are more successful t..
Share premium account : What is share premium account? if we have some amount in sharepremium account how can we utilse it? are there any accounting standards for this?
Explain c6h5cooh(s) was burned in a bomb calorimeter : The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation, of H, at 25 oC for this compound of H values at 25 oC for CO2(g) and H2O(l) are 394 kJ mol 1 a..
Determine the efficiency of wye-connected synchronous motor : A 400-V three-phase, wye-connected synchronous motor delivers 12 hp at the shaft and operates at 0.866 lagging power factor. The total iron, friction, and field copper losses are 1200 W.
What are the benefits of organizing the business : You are approached by a client who would like to start his own business. The client plans to take the company public in five years. What are the benefits of organizing the business as a corporation?
Create an income statement for the year ended : The following selected information is taken from therecords of Pickard and Associates. Prepare an income statement for the year endedDecember 31, 2009.
Servant leadership to improve communities and society : Explain why it is important for servant leadership to improve communities and society. Why is leadership courage important to realize these changes?
What is the bonds nominal coupon interest rate : O'Brien Ltd.'s outstanding bonds have a $1,000 par value, and they mature in 25 years. Their nominal yield to maturity is 9.25%, they pay interest semiannually, and they sell at a price of $850. What is the bond's nominal (annual) coupon interes..

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What is the cyclic prefix length

An OFDM system with a passband bandwidth of 10 MHz and carrier frequency of 1 GHz is used in an outdoor environment with a maximum delay spread of 15 microseconds.

  Explain power factor correction

Power factor correction, Three parallel impedances in rectangular form as follows

  Impact of electron energy

Briefly discuss the impact of electron energy, electron current and target on the Bremsstrahlung generated.

  What is the symbol rate and what is the bandwidth

What is the symbol rate and what is the bandwidth occupied by the 16-QAM signal? The link must maintain a BER no higher than 10^-6. What is the minimum CNR in the receiver to meet this requirement?

  What are the direction of the total electric force

Point charge 1.5{\rm \mu C} is located at x = 0, y = 0.30 {\rm m}, point charge -1.5{\rm \mu C} is located at x = 0 y = -0.30 {\rm m}. What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point..

  What is the diode current with the load connected

pecify the value for R. What is the diode current with the load connected What is the increase resulting in the output votage when the load is disconnected What change results if the load resistance is reduced to 100ohms? To 75ohms To 50ohms

  Design a circuit that takes an input signal that can swing

For input signal voltages between these limits, the input should pass unaltered to the output. The peak current drawn from the input source may not exceed 1mA. You may use any circuit component we've studied except opamps.

  Define cellular operator designs a network reuse pattern

TDMA has 416 frequencies in one of the cellular license bands. If a cellular operator designs a network with a 5/15 reuse pattern, how many frequencies per cell (sector) can be supported? ( ignore control channels)

  Why company has expanded sufficiently to need crystallizer

You need to upgrade your crystallizer. Your company bought a new 1000 ft2 crystallizer 5 years ago for $450,000. You believe that your company has expanded sufficiently to need a 5000 ft2 crystallizer. What is the price in today's dollars

  Define in words how the display on the spectrum

The waveform output by the signal generator in part (b) is changed so that the rectangular pulses have the same width but no longer are periodic. They occur at random intervals of time. Explain in words how the display on the spectrum screen would..

  How the reverse movement of the motor be controlled

Design I/O wiring to control forward and reverse 12Vdc motor using PLC OMRON CJ1M. Consider that the forward movement of the motor will be controlled by a forward button and the reverse movement of the motor will be controlled by a reverse button

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