Specify the system where the machine is use. Specify the ratings and related description of the machine pertaining to capac Explain how the machine is use, its purpose and operation. What are the problems and troubles encountered in the operation. What are the maintenance program implemented for the machines proper ope

Specify the system where the machine is use. Specify the ratings and related description of the machine pertaining to capac Explain how the machine is use, its purpose and operation. What are the problems and troubles encountered in the operation. What are the maintenance program implemented for the machines proper ope

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter4: Symbols

Section: Chapter Questions

Problem 14SQ: When reading a schematic diagram, are the control components shown as they should be when the...

See similar textbooks

Similar questions

How is the combined pump–motor efficiency of a pump and motor system defined? Can the combined pump–motor efficiency be greater than either the pump or the motor efficiency? Explain.
Choose a modern house of your interest, identify any ONE application of the DC electrical machine in the modern house and answer the following a) Identify the type of the DC machine used and its specifications b) Identify the load characteristics of the DC machine used. c) Explain the operation of the DC machine used with detailed diagrams. d) Explain the functions/roles/importance of the DC machine in the application e) Compare the speed control method used in the application with that of the armature or field control method.
SUBJECT: ELECTRICAL MACHINES 1 FOR ELECTRICAL ENGINEERS TOPIC: DC GENERATOR AND DC MOTOR NOTE: ANSWER THE QUESTIONS AND COMPLETE THE ANSWER WITH FULL COMPLETE DIAGRAM AND EXPLANATION IN TYPEWRITTEN. MAKE SURE THAT YOURE ANSWER IS CORRECT, I WILL RATE HIGHLY IF THE ANSWER IS CORRECT! THANK YOU Instruction: answer and explain the following items below. 1. Process of energy conversion & Power Stages 2. Diagram ➤ Energy Conversion in DC Machines o DC Generator o DC Motor ➤ Power Stages o DC Generator o DC Motor
Which one of the following is the application of DC machine? a. Pumps O b. Oven O c. Cranes O d. Water heater
Which of the following is not a type of energy requiring lockout or tagout procedures? a. Pneumatic b. Hydraulic c. Kinetic d. Electrical
D.a. Which one of the following PM programs is usually the largest for a typical manufacturing facility?A. LubricationB. ElectronicC. ElectricalD. MechanicalD.b. The true purpose of uptime inspection PM is toA. keep the PM staff working during low maintenance periods.B. locate problems that occur on a random basis.C. supplement the lubrication PMs in looking for dry bearings and other lubrication problems.D. look for common recurring problems in equipment. D.c. When machines fail shortly after they’ve been built and installed, the failures are termedA. singularity failures.B. independent component failures.C. short-term failures.D. infant mortality failures.
What is electrical machine.
Explain the factors affecting power system stability and the methods used to maintain stable operation.
1. It is a machine which converts electric energy into mechanicalenergy or work and requires electric energy input.2. There is no constructional difference between a dc generator anda dc motor. (True or False)3. The functions of a dc generator and a dc motor are notinterchangeable is that a generator may be operated as a motorand vice versa. (True or False)4. Magnetic force acts ____ to both wire and magnetic field.Choose among these:ParallelPerpendicularOppositethe same5. When electric current passes through a coil in a magnetic field,the magnetic force produces a _____ which turns the motor.6. For motors, electric current is supplied externally through a___.7. This serves as the protective cover of the machine.8. Its slots carry the conductors and cause them to rotate and hencecut the magnetic flux of the field of the field magnets.9. It converts the alternating current induced in the armatureconductors into unidirectional current.10. It collects current to the external circuit.
When reading a schematic diagram, are the control components shown as they should be when the machine is turned off or de-energized, or are they shown as they should be when the machine is in operation?
a) What down the uses of performing maintenance on machine.
one of the following is a disadvantages of the power electronics system. a. installation b. harmonics c. efficient d. reliability