Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 10, Problem 1RQ
Explain the difference between inching and jogging.
Expert Solution & Answer
To determine
The difference between inching and jogging.
Explanation of Solution
Jogging:
Jogging is to start a motor with short nudges of power at full voltage. Jogging should not exceed 5 times in a minute and if frequently done, the starter of the motor will be de-rated.
Inching:
Inching is similar to jogging but at reduced voltage. Inching is to start a motor with short nudges of power at reduced voltage.
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1.1 m
1.3 m
B
60-mm diameter
Brass
40-mm diameter
Aluminum
PROBLEM 2.52
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A rod consisting of two cylindrical portions AB and BC is restrained at both
ends. Portion AB is made of brass (E₁ = 105 GPa, α = 20.9×10°/°C) and
portion BC is made of aluminum (Ę₁ =72 GPa, α = 23.9×10/°C).
Knowing that the rod is initially unstressed, determine (a) the normal
stresses induced in portions AB and BC by a temperature rise of 42°C, (b)
the corresponding deflection of point B.
30 mm
D
=
40 MPa
-30 mm
B
C
80 MPa
PROBLEM 2.69
A 30-mm square was scribed on the side of a large steel pressure
vessel. After pressurization, the biaxial stress condition at the square
is as shown. For E = 200 GPa and v=0.30, determine the change in
length of (a) side AB, (b) side BC, (c) diagnonal AC.
Please solve in detail this problem
thank you
Chapter 10 Solutions
Understanding Motor Controls
Ch. 10 -
Explain the difference between inching and...Ch. 10 - What is the main purpose of jogging?Ch. 10 - Refer to the circuit shown in Figure 108. In this...Ch. 10 - Refer to the circuit shown in Figure 109. In this...Ch. 10 - Refer to the circuit shown in Figure 107. Assume...Ch. 10 - Prob. 6RQCh. 10 - Prob. 7RQ
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