Find the rated and maximum torques

Assignment Help Chemical Engineering
Reference no: EM131113200

A 4000-V, 5000-hp, 60-Hz, 12-pole synchronous motor, with a synchronous reactance of 4 Ω per phase (based on cylindrical-rotor theory), is excited to produce unity power factor at rated load. Neglect all losses.

(a) Find the rated and maximum torques.

(b) What is the armature current corresponding to the maximum torque?

Reference no: EM131113200

Questions Cloud

Quality and correctness of schema design : Create an ER/EER diagram to represent the conceptual schema described by the above Universe of Discourse - You can use MS Word to draw the Entity Relationship diagram, and then use it for mapping step.
Compute the effective armature ac resistance : Compute the effective armature ac resistance in per unit and in ohms per phase at 25°C.
List the advantages of the flexible exchange rate regime : List the advantages of the flexible exchange rate regime. Criticize the flexible exchange rate regime from the viewpoint of the proponents of the fixed exchange rate regime. Rebut the above criticism from the viewpoint of the proponents of the flexib..
How should mores an determine the interest revenue for 2010 : How should Mores an account for the trade accounts receivable factored on November 1, 2010?Why? (AICPA adapted)
Find the rated and maximum torques : Find the rated and maximum torques.
Determine the armature current and the power factor : If the motor is operating on load with a power angle of -20°, and the excitation is adjusted so that the excitation voltage is equal in magnitude to the terminal voltage, determine the armature current and the power factor of the motor.
Explain the arrangements and workings of the european : Explain the arrangements and workings of the European Monetary System (EMS).
Determine the power factor of the motor : A 2300-V, three-phase, wye-connected, round rotor synchronous motor has a synchronous reactance of 3 Ω per phase and an armature resistance of 0.25 Ω per phase. The motor operates on load with a power angle of -15°, and the excitation is adjusted ..
Evaluate and create the annotated bibliography : Critically examine the evidence base for the Family Partnership Model. There are 5 research papers to evaluate and create the annotated bibliography

Reviews

Write a Review

Chemical Engineering Questions & Answers

  What steady-state temperatures of the reacting mixture

Safety considerations require that the maximum steady-state temperature of the system remain below 475°C. Will a spherical container with inner and outer diameters of 1.0 m and 1.2 m, respectively, satisfy this requirement?

  Is rusting a moderate reaction

Is rusting a moderate reaction? Rusting is an example of what reaction?

  Estimate the adiabatic flame temperature of cyclopentane

Suppose you discover after the combustion has been carried out that the thermocouple is not functioning properly. Use the final pressure gauge reading of 75.3bar to estimate the adiabatic flame temperature of cyclopentane. Do not assume ideal gas ..

  Heated from a pipeline temperature

Water (1.25 kg/s) is to be heated from a pipeline temperature of 15°C to 85°C using superheated steam (13.75 kg/s) at 550°C and 3 MPa in a steady-state process to produce 15 kg/s of heated water. The heating is to be done in a mixing tank by directly..

  Microstructural products of eutectoid iron-carbon

Name the microstructural products of eutectoid iron-carbon alloy (0.76 wt% C) specimens that are first completely transformed to austenite, then cooled to room temperature at the following rates:

  Draw the serializibility

1. Apply the query tuning on following query and explain why your modification is more efficient? SELECT S_name, S_Phone, S_Age FROM STUDEN

  Hydrophobic amino acid tryptophan to a protein shows

The binding of the hydrophobic amino acid tryptophan to a protein shows a pronounced hydrophobic effect. The thermodynamic data for the binding of is given below calculate ?

  What is the fugacity of toluene in this mixture

A solution of the two components that contains 62% mol toluene is slowly heated at constant pressure. When the solution begins to boil the temperature reads 120 °C. What is the pressure?

  Find the equivalent resistance of the circuit.

Does the current through the battery increase, decrease, or remain the same? Justify your answer.

  Preliminary mechanical design for the column

The specification for a sieve plate column is given below. Make a preliminary mechanical design for the column. Your design should include:

  Thermodynamics for single reactions

Give the conclusions drawn form thermodynamics for single reactions.The following conclusions may be drawn from thethermodynamics;?The thermodynamic equilibrium constant is unaffected by the pressure of the system, by the presenceor absence ofiner..

  Estimate the total surface area of char

In the direct steelmaking reactor based on the reduction of an oxidizing foaming slag by char (carbon) particles and droplets of iron containing 2% carbon. Estimate the total surface area of char and iron droplets needed to achieve the smelting ..

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