Find the motor speed when the armature current is 2a

Assignment Help Electrical Engineering
Reference no: EM13255555

A separately excited 300V DC motor has an armature resistance of 1ohm and a field resistance of 100 ohm. The field Voltage is 200V. The no load speed is 1200 rpm and no load armature current 2A.

a) find the motor speed when the armature current is 2A.

b) Find the motor's rotational looses.

c) Sketch the typical torque - speed characteristics of the motor.

Reference no: EM13255555

Questions Cloud

Determine what is the supple frequency : A squirrel-cage motor winding is wound up for two poles. At full-load, the motor operates at 3294 rpm with a slip speed of 306 rpm. What is the supple frequency
Potential to catalytically destroy ozone in the stratospher : Assuming that equal numbers of moles of each were released into the air at ground level, rank these four compounds in terms of their potential to catalytically destroy ozone in the stratosphere. Explain
Determine what is the ac peak to peak voltage : For a BJT common Emitter Amplifier, the AC base voltage = 1,2Vrms, Av=50, Bdc=150, Bac=200, alpha dc =0.98 and an RE of 500 ohm. What is the AC P-P voltage
Define what is the strongest base that may exist in water : What is the strongest base that may exist in water. What happens to stronger bases
Find the motor speed when the armature current is 2a : A separately excited 300V DC motor has an armature resistance of 1ohm and a field resistance of 100 ohm. The field Voltage is 200V. The no load speed is 1200 rpm and no load armature current 2A
What would rc be for an npn transistor : Ib is 15uA in a circuit where an NPN transistor has an Av of 75 and VCE is 10 when Vcc is 25 and Beda DC is 75 and the Ic is 1.125mA, What would Rc be, assuming Ve=0
Explain what is the empirical formula of the hydrate : The mass percent of water in a hydrate of MnCl2 is 36.41%. What is the empirical formula of the hydrate
Explain an unknown solution containing one of the salts : An unknown solution containing one of the salts ZnSO4, MgSO4 or SrCl2 gives a negative flame test but tarnishes a piece of magnesium inserted into the solution. Which salt was in the solution
Determine the kinetic energy : A 1.00kg mass oscillates according to the equation x=0.600cos8.50t, where x is in meters and t is in seconds. Determine the kinetic energy when x = 0.360m

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Design a signal conditioning circuit for k-type thermocouple

Design a signal conditioning circuit for a K-type thermocouple, which produces output voltage of 0V-5V using a three terminal solid-state temperature sensor for reference junction compensation. The sensitivity of the sensor is 4mV/C.

  Calculate the nominal full load current of the machine

A 2000kW synchronous motor operates at a three - phase line-to-line voltage of 4kV. It has a synchronous reactance of 4 ohms per phase. Calculate a) The nominal full load current of the machine when the excitation voltage E0 ( line - to-line) is 4k..

  What is the resistivity of the wire and conductivity

What is the resistivity of the wire? conductivity? Using the original dimensions of the wire, how much current can you pass through the wire until a 5V signal is degraded 5% or more?

  Free-running frequency of vco must be set to what frequency

PLL can be used to demodulate an FM signal. If you are tuned to an FM station at a frequency of 101.1 MHz, the free-running frequency of the VCO must be set to what frequency

  Deduce expression for power in terms of the line voltage

Show that the power in a three-phase, three-wire system with balanced loads is constant at every instant. Deduce an expression for the power in terms of the line voltage, line current, and the power-factor.

  Define hue-h in the h-i-s coordinate system

define hue (h) in the h-i-s coordinate system. outline how the formula for computation of hue from R-G-B coordinates of a color point may be derived (detailed derivation is not required)

  Find the transformation ratio of a transformer

Find the transformation ratio of a transformer having 350 turns on the secondary winding and 7000 turns on the primary. What voltage must be applied to the primary of the transformer to develop an open-circuit secondary voltage

  Implementation of ga matlab code

Project on LFC using tuned FOPID. I have considered a two area model. Need help regarding implementation of GA MATLAB code for a two area interconnected power system for LOAD FREQUENCY CONTROL.

  Compute the power absorbed by an element in a circuit

Compute the power absorbed by an element in a circuit, but for a simple sinusoidal current i = sin(2πt/T) where T = 1 s.

  Which would have prevented the unfortunate breakdown

the Mars Rover Spirit got stuck in the Martian sand. The wheels kept slipping. Attempts to free it were futile. Discuss the type of actuator in this case. Can you suggest any improvements in the actuator that would have prevented this unfortunate ..

  Compute the maximum and minimum spectral frequencies

Compute the maximum and minimum spectral frequencies received by a mobile traveling at a speed of 100 Km/hr. What is the frequency of the received signal if the mobile is moving in a direction perpendicular to the direction of arrival of the trans..

  Determine maximum effective area of the antenna

A small circular parabolic reflector, often referred to as dish, is now being advertised as a TV antenna for direct broadcast. Assuming the diameter of the antenna is 1 meter, the frequency of operation is 3 GHz

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