Determine the input current of the motor

Assignment Help Electrical Engineering
Reference no: EM13263490

A 3-phase induction motor is rated at 440V,60Hz, 1140rpm. The motor gives the output torque of 20 N-m at the rated speed. The mechanical losses are equal to 1kW. The stator losses are 1.5kW. Find the input current of the motor, given that the power factor is 0.8 (lagging).

Reference no: EM13263490

Questions Cloud

Find the slip at the maximum developed torque : (a) Find the slip at the maximum developed torque. (b) If we would like to get the maximum torque at starting (s=1), a method is to add more resistance to the rotor, R2,new=R2,old + Rextra, while the rotor reactance X2 stays the same.
What is the degree of operating leverage : If sales increase 25%, EBIT increases 50%, debt increases 75%, and working capital increases 12.5%, what is the degree of operating leverage?
What is its the mass of the ball : A spring with spring constant 15N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. What is its the mass of the ball
What is the approximate yield to maturity : A $1000 par value bond issued by XYZ Company has 16 years to maturity.The bond pays $78 per year in interest and is currently selling for $880.00.
Determine the input current of the motor : The motor gives the output torque of 20 N-m at the rated speed. The mechanical losses are equal to 1kW. The stator losses are 1.5kW. Find the input current of the motor, given that the power factor is 0.8
What are the costs of retained earnings and new common stock : Sun Instruments expects to issue new stock at $34.00 per share with estimated float costs of 7% of market price.The company currently pays a $2.10 cash dividend and has a 6% growth rate. What are the costs of retained earnings and new common stock..
What is the speed of the lightest star : The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m. What is the speed of the lightest star
What is the correlation coefficient : The variance of Stock A is .005, the variance of the market is .008 and the covariance between the two is .0026. What is the correlation coefficient?
How blogs and social networking have altered our daily usage : Discuss how Blogs and Social Networking have altered our daily usage of the internet and the World Wide Web.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Find the sum of the elements of an array called list1

Write a program to find the sum of the elements of an array called list1. The size of list1 is four bytes. The values of list1 are $FF, $1, $FE, and $02. To check your work, the sum should become $0200.

  Find nd on n side

Built-in voltage for a Si p-n junction is tested to be 0.6 V, NA = 2 X 10^15 cm^-3 on p side. Find ND on n side. (Assume ni = 1 x 10^10 cm^-3; and k*T/q= 0.026 V)

  Determine what is the output signal-to-noise ratio

An amplifier has a gain Ad,dB = 40 dB. Its common-mode rejection ratio is CMRRdB= 120 dB. It is used to amplify an input which has a 200mV desired signal along with an undesired common-mode signal ("noise").

  Calculate the output voltage vo of operational amplifier

Consider the circuit as shown below. If Vin peak voltage = 12V, Calculate the output voltage Vo. Open loop voltage gain of the Operational Amplifier A=10,000. The voltage drop across the diode is 0.7 V.

  What is the output impedance of the amplifier

Suppose that without a 1k-ohm load an amplifier's output voltage is 5Vpp but when the 1k-ohm load is attached, it drops to 3Vpp. What is the output impedance of the amplifier

  Calculate the rms values of the phase currents and magnitude

A balanced three-phase inductive load is supplied in steady state by a balanced three-phase voltage source with a phase voltage of 120Vrms. The load draws a total of 10kW at a power factor of 0.9.

  Determine the number of quantization levels

Work out the following problem: If the analog signal to be quantized is a sinusoidal waveform, that is, x(t) = 6 sin (6283t), and if the bipolar quantizer uses 8 bits, determine 1. Number of quantization levels; 2. Step size of the quantizer ; 3. ..

  What was the bullets speed with frictionless block

A 1.12 kg block is attached to a horizontal spring with spring constant 3500 N/m. The block is at rest on a frictionless surface. A 10 g bullet is fired into the block, in the face opposite the spring, and sticks.

  Find the magnitude of the electric field at given distance

A sphere of radius 100mm has a charge 4 C uniformly distributed throughout its volume. Find the magnitude of the electric field at distance 100.1 mm from the centre of the sphere.

  Write a program in c that reads integers from users

Write a program in C not C++ that reads 20 integers from the user and sums the odd and even numbers together. Also have the program output the ratio of the odd numbers to the even numbers.

  Derive the step response and voltage transfer function

Design a passive first-order RC low-pass filter with a cutoff frequency fH = 10 kHz. Derive the step response and voltage transfer function.

  What distinguishes a control data value from a character

Describe the steps in the keypad polling routine. Draw a flow chart for the keypad LCD software code. Discuss challenges experienced in developing the keypad LCD software code.

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