Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Textbook Question
Chapter 5, Problem 13SQ
Draw an elementary line diagram of the control circuit from the wiring diagram shown in Figure 5–20. Exclude power or motor circuit wiring.
FIG. 5–20
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HW_#1
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Watch out for units (i.e, kQ, mA, etc), show all units on answers and
clearly mark all answers
1)(5 pts) Specify if the following elements are absorbing or delivering power, and determine the
amount of power being absorbed or delivered.
10 V +
a)
5A
+
5 V
-
b)
2A
+ 10 V
-2A
2)(5 pts) Two circuits, shown by boxes A and B are connected as shown below. Use the
current reference direction provided and the voltage reference polarity shown to determine
the power for the interconnection. Also state the direction of power flow for the
connection: form A to B or B to A.
A
I
+
I
a) I = -6 A
V = -20 Volts
b) 1 = 8 A
V = 30 Volts
c) = 4 A
V = -80 Volts
d) I = -5 A
V = 40 Volts
B
3) (5 pts) Use Ohm's Law, KCL and KVL to determine values for V1, V2, V₁, I₁, and I2.
200 Ohms
A,
+
12
+
V1 75 Ohms
3 Amps
+
V2
300 Ohms
25 Ohms
4) (5 pts) For the circuit in Problem 2, determine the power (expressed as a…
Find the power delivered across the 10 ohm resistor
Chapter 5 Solutions
Electric Motor Control
Ch. 5 - In which diagram do the physical locations of the...Ch. 5 - Which diagram conveys as much information as...Ch. 5 - Prob. 3SQCh. 5 - Which control wiring scheme can cause damage to...Ch. 5 - In developing line or wiring diagrams, in which...Ch. 5 - In which control circuit wire are the overload...Ch. 5 - The control circuit is connected to which lines...Ch. 5 - Prob. 8SQCh. 5 - The contactor coil is connected to which line of a...Ch. 5 - What does the X or 1 mean on a target table?
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