Find the line current and the torque developed by the motor

Assignment Help Electrical Engineering
Reference no: EM131201295

A 1,200-V, three-phase, wye-connected synchronous motor takes 110 kW (exclusive of field winding loss) when operated under a certain load at 1,200 rev/min. The back emf of the motor is 2,000 V. The synchronous reactance is 10 Ω per phase, with negligible winding resistance. Find the line current and the torque developed by the motor.

Reference no: EM131201295

Questions Cloud

Limit residential development : Explain using supply and demand graphs how land use regulations, that specifically limit residential development in many areas in the U.S., might contribute to a housing bubble?
Barriers to the development of formal water markets : What are some of the barriers to the development of formal water markets that could potentially lead to more efficient allocations of water?
Marginal net benefit functions : Consider a municipality A and an irrigation district B with the following marginal net benefit functions that describe net benefits from water consumption q.
Find the induced voltage and the power angle of the motor : The per-phase impedance of a 600-V, three-phase, Y-connected synchronous motor is 5 + j50 Ω. The motor takes 24 kW at a leading power factor of 0.707. Determine the induced voltage and the power angle of the motor.
Find the line current and the torque developed by the motor : The back emf of the motor is 2,000 V. The synchronous reactance is 10 Ω per phase, with negligible winding resistance. Find the line current and the torque developed by the motor.
Find the maximum power and torque : A 2,000-hp, unity power factor, three-phase, Y-connected, 2,300-V, 30-pole, 60-Hz syn chronous motor has a synchronous reactance of 1.95 Ω per phase. Neglect all losses. Find the maximum power and torque.
Number of foreign-trained physicians permitted : A group of American doctors have called for a limit on the number of foreign-trained physicians permitted to practice in the United States. What effect would such a limit have on the equilibrium quantity and price of doctors' services in the Unite..
Find the generated voltage per phase : If the machine is operating at rated load and voltage at a power factor of 0.867 lagging, find the generated voltage per phase and the torque angle.
Prepare adjusting journal entries on december 31 2007 : Correcting Entries for Patents During the year-end audit of the Cressman Corporation's financial statements for 2007, - Prepare adjusting journal entries on December 31, 2007.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Determine the weigh of the rod in units of pounds-force

A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weigh of the rod in units of pounds-force. The specific gravity is 4.7 gravitational acceleration on Callisto is 1.25 meters per second squared.

  Write the mesh current equations for the circuit

By inspection, write the mesh-current equations for the circuit in given figure.

  What safety problem might the engineer encounter

An engineer attempts to build a remotely actuated door lock for asecurity operation. The door is powered by an electromagnetic actuator whose coil can be modeled as a 500Ω resistor .The actuator requires a minimum of 100mA of current for reliable ..

  Find the amplitude time period and maximum speed

The equation of a particle executing S.H.M is x = 5 sin((TT )t +n/3)). Find the amplitude , time period and maximum speed also find velocity at t = 1sec

  Digital systems and microprocessors

Design a sequential system to continuously output your set of eight different digits (01275438) in binary at the rate of one digit per clock pulse.

  Convert the indexed image to gray scale

Convert the indexed image to gray scale.

  Illustrate per-phase analysis of power transmission system

The source has an abc-phase sequence. At the wye-connected load, the phase-a voltage Va'n' has phase angle (theta)a'n' = 60 degrees and the phase impedance is (10 + j15) ohms. Further, the line impedance per phase is (1.1+ j1.5) ohms

  Thermo physical properties

That is, m = 36 kg/h, with all other conditions the same. The thermo physical properties of the hot fluid are p = 1079 kg/m3, cp = 2637 J/kg · K, µ = 0.0034 N · s/m2, and k = 0.261 W/m · K.

  What is the motor efficiency as operated

What is the motor efficiency as operated?

  Determine the flux density in the air gap

Consider the two-pole motor shown in Figure 16.10 on page 778. The gap between the rotor and stator is 1.5 mm. Each of the two field coils has 250 turns and carries a current of 3 A. Assume that the permeability of the iron is infinite. Determine ..

  Determine angle by which the applied voltage leads current

The known quantities in given series RL circuit are asfollows: resistance equals 8-ohm, inductive reactance equals 39?current equals 3A, and the applied voltage is 120- volts 60 Hz.Determine the following unknown quantities

  Calculate the sag using the catenary method

a single span of an overhead line is 250 ft in length, having the supporting poles at the same level. the maximum tension in the conductor is 855 lb. the weight of conductor is 0.125 lb/ft.

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