Calculate the motors starting current

Assignment Help Electrical Engineering
Reference no: EM13247078

A 1000V, 50 hp compound motor runs at a speed of 750 rpm at full load. The armature, series and shunt field resistances are 0.5 ohm, 1 ohm, and 200 ohm, respectively. The motor efficiency at this condition is 80%. Calculate the motors starting current.

Reference no: EM13247078

Questions Cloud

What is the change in kinetic energy of the electron : two parallel plates are separated by a distance of 25mm. the potential difference across the plates is 500v, what is the change in kinetic energy of the electron in electron volts
Design a vdhl file controller to operate two separate sets : Design a VDHL file controller to operate two separate sets of three traffic light signals, one for each direction. Use eight LEDs as shown in to represent the outputs. The Time in This State can be met in several ways.
How to calculate the ph of a solution containing formic acid : Calculate the pH of a solution containing 25.00 mL of 0.12 M formic acid (Ka = 1.7 x 10^-4) to which the following amounts of 0.10 M NaOH have been added
Derive the characteristic equation for the ab latch : An AB latch operates as follows: If A = 0 and B = 0, the latch state is Q = 0; if either A = 1 or B = 1 (but not both), the latch output does not change; and when both A = 1 and B = 1, the latch state is Q = 1.
Calculate the motors starting current : A 1000V, 50 hp compound motor runs at a speed of 750 rpm at full load. The armature, series and shunt field resistances are 0.5 ohm, 1 ohm, and 200 ohm, respectively. The motor efficiency at this condition is 80%. Calculate the motors starting cur..
Calculate the starting torque of the motor : A dc series motor has a armature current of 10A at full load. The motor terminal voltage is 300V. The armature and field resistances are 2 ohm and 3 ohm respecitively. The motor speed at full load is 250 rpm. Calculate the starting torque of the m..
Calculate developed torque at a full load armature current : A 600 V, dc shunt motor has armature and field resistance of 15 ohms and 600 ohms respectively. When the motor runs unloaded, the ine current is 3 A, and the speed is 1000rpm. Calculate the developed torque at a full load armature current of 50 A.
Determine maximum energy store by capacitor : A parallel plate capacitor consists of 2 square plates 19 cm per side spaced .55 mm apart with only air between them. What is the maximum energy that can stored by the capacitor
Explain how is high temperature defined : Is 373 K a high temperature? Some thermodynamic principles only hold at "high temperature". How is "high temperature" defined

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Explain voltage in complex forms

Voltage in complex forms, An engine consumes 10kw of power and 4kvar reactive power at a current of (6+j4)Amps

  Design a parallel resonance circuit with resonance frequency

Design a parallel resonance circuit with resonance frequency of 30kHz and bandwidth of 20kHz and plot its frequency response.

  How to close the temperature switch turns on

In a motor control system, one master stop pushbutton (Stop) is available for stopping the operation at any time. If the temperature switch (TSW) is closed, pressing the red pushbutton (RedPB) will turn on both motors M1 and M2.

  What type of cable is necessary for each connection

What type of cable is necessary for each connection: straight or crossover? You can assume that S1 and S2 do not have the ability to resolve crossovers (called Auto-MDIX).

  Measures the changes of temperature in a system

The op-amp circuit measures the changes of temperature in a system. The output voltage is given by v0(t) = -R(t)vi(t). Suppose that the temperature in the system changes cyclically after t = 0, so that R(t) = [1 +0.5 cos(20πt)] u(t) and let the in..

  Find the mean connection speed and standard deviation

The internet connection speed at any time from your home can depend on the amount of overall internet trac at that time. Let the random variable X denote the speed of connection in megabits per second (MBPS).

  Find the cost of charging the battery for 5-hours

An automobile battery is charged with a constant current of3.75A for5hours. The terminal voltage of the battery isv= 11 + 0.5tVfort> 0, wheretis in hours.(a) Find the energy delivered to the battery during the5hours

  Discuss the procedure for design using anthropometric data

Discuss the procedure for design using anthropometric data. Include Confidence Intervals (CIs). Select any one anthropometric measurement for males or females in Table 5.3 and find 90% CI for the mean measurement of the population.

  Rate at which succesful packets arrive at network node

Rate at which succesful packets arrive at network node, After traversing a wireless filled channel packets arrive at a networks node according to a Poisson process with rate Lambda

  What is the expression for fourier transform of dtmf signal

Sketch the amplitude spectrum of a DTMF signal with finite duration. You should make this sketch by hand, using the Fourier transform expression obtained in part 1). What happens to the DTMF spectrum when T is "too small"

  Determine the probability that each of the pick is a nokia

A family selects two phones from a box containing cellphones: four are Nokia, marked N1, N2, N3, and N4. The other three are Samsung, marked S1, S2, and S3. Two phones are picked randomly in succession without replacement.

  How many atoms are found inside a unit cell of simple cubic

How many atoms are found inside a unit cell of a simple cubic, body-centered cubic, and faced-centered cubic crystal How far apart interms of lattice constant a are nearest neighbor atoms in each case, measured from center to center

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