
EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780176919962
Author: Herman
Publisher: VST
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Question
Chapter 37, Problem 1RQ
To determine
The two electrical component are commonly connected in series with the motor to limit starting current.
Expert Solution & Answer

Explanation of Solution
Consider that the starting current of the motor is reduced by the use of two methods that are resistor starting and reactor starting.
In case of starting method the resistor is connected in series with the motor to reduce the motor accelerating torque as the current is determined by the total circuit impedance, the motor voltage during the accelerating depends upon the relative reactor and the motor impedance.
Thus, the two components are the resistors ad the reactor.
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Students have asked these similar questions
please find Ix and Iy in mm4
Homework#7
Computing Angles of Rotation and Angles of Tilt
In each of the following problems, the axis of a hole is shown in a rectangular solid. In
order to position the hole axis for drilling, the angle of rotation and the angle of tilt must be
determined. Compute angles to the nearer minute in triangles with customary unit sides.
Compute angles to the nearer hundredth degree in triangles with metric unit sides.
a. Compute the angle of rotation, R.
b. Compute the angle of tilt,
T.
7. Given: H= 2.600 in.
L = 2.400 in.
a.
W= 1.900 in.
8. Given: H= 55.00 mm
b.
Use this figure for #7 and #8.
AXIS OF HOLE
L 48.00 mm
W= 30.00 mm
H
a.
b.
9. Given: H = 4.750 in.
L = 4.000 in.
W= 3.750 in.
a.
10. Given: H=42.00 mm
b.
L37.00 mm
W = 32.00 mm
a.
b.
11. Given: H = 0.970 in.
L = 0.860 in.
W= 0.750 in.
a.
12. Given: H= 22.00 mm
L 18.00 mm
=
W = 15.00 mm
a.
b.
Use this figure for #9 and #10.
ZR
AXIS OF HOLE
Use this figure for #11 and #12.
H
b.
L
AXIS OF HOLE
T
Chapter 37 Solutions
EBK 3N3-EBK: INDUSTRIAL MOTOR CONTROL
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