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Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818

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BuyFindarrow_forward

Electric Motor Control

10th Edition
Herman
Publisher: CENGAGE L
ISBN: 9781133702818
Chapter 4, Problem 5SQ
Textbook Problem
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The symbol shown is a

Chapter 4, Problem 5SQ, The symbol shown is a a. polarized capacitor. b. normally closed switch. c. normally open held

a. polarized capacitor.

b. normally closed switch.

c. normally open held closed switch.

d. normally open contact.

To determine

Choose the correct option that represents the symbol in the given question.

Explanation of Solution

Discussion:

Contact symbol is the most common symbol used on control schematics and it has two parallel lines connected by wires.

Refer to Figure 4-20 in the textbook for normally closed and normally open contact symbol.

Normally open contact symbol consists of only two parallel lines that are used to represent an open connection.

Normally closed contact symbol has two parallel lines with an addition of a diagonal line drawn through the contacts...

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