Understanding Motor Controls
Understanding Motor Controls
3rd Edition
ISBN: 9781305498129
Author: Stephen L. Herman
Publisher: Cengage Learning
bartleby

Concept explainers

Mount Motor
A mount motor can be termed as an engine mount. Mount motors are essential parts of machines and establish a connection between an engine and chassis. They prevent the engine and chassis from getting damaged and also help to stabilize the engine.
Question
Book Icon
Chapter 36, Problem 1RQ
To determine

Synchronous speed.

Expert Solution & Answer
Check Mark

Explanation of Solution

Given information:

Number of poles per phase, P=6.

Frequency of the supply, f=20 Hz.

Calculation:

The synchronous speed is given by the formula:

  s=120fP=120×20Hz6=400 RPM

Thus, the synchronous speed of the motor is 400 RPM.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Previous
Chapter 35, Problem 8RQ
Next
Chapter 36, Problem 2RQ
Students have asked these similar questions
The sketch below gives some details of the human heart at rest. What is the total power requirement (work/time) for an artificial heart pump if we use a safety factor of 5 to allow for inefficiencies, the need to operate the heart under stress, etc.? Assume blood has the properties of water. p pressure above atmosphere blood going to the lungs for a fresh charge of oxygen p = 2.9 kPa 25v pulmonary artery d = 25mm fresh oxygenated blood from the lungs p = 1.0 kPa vena cava d=30mm right auricle pulmonary vein, d = 28mm aorta, d=20mm spent blood returning from left auricle the body p = 0.66 kPa right left ventricle ventricle blood to feed the body, p 13 kPa normal blood flow = 90 ml/s
4- A horizontal Venturi meter is used to measure the flow rate of water through the piping system of 20 cm I.D, where the diameter of throat in the meter is d₂ = 10 cm. The pressure at inlet is 17.658 N/cm2 gauge and the vacuum pressure of 35 cm Hg at throat. Find the discharge of water. Take Cd = 0.98.
10

Chapter 36 Solutions

Understanding Motor Controls

Ch. 36 - Prob. 1RQCh. 36 - Prob. 2RQCh. 36 - If an alternator is used to provide variable...Ch. 36 - What solid-state device is generally used to...Ch. 36 - Why are SCRs used to construct a bridge rectifier...Ch. 36 - What is the main disadvantage of using SCRs in a...Ch. 36 - How are junction transistors driven into...Ch. 36 - What is the disadvantage of driving a junction...Ch. 36 - Prob. 9RQCh. 36 - In variable frequency drives that employ IGBTs,...
Ch. 36 - What type of motor is generally used with IGBT...Ch. 36 - Prob. 12RQCh. 36 - What is a thyristor?Ch. 36 - After an SCR has been turned on, what must be done...Ch. 36 - Prob. 15RQ
Knowledge Booster
Background pattern image
Mechanical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Text book image
Electrical Transformers and Rotating Machines
Mechanical Engineering
ISBN:9781305494817
Author:Stephen L. Herman
Publisher:Cengage Learning
Text book image
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
SEE MORE TEXTBOOKS