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On a separate sheet of paper, draw an elementary diagram of a fractional horsepower, manual motor starter. When the starter contact is closed, it will energize a pneumatic timing relay coil through the overload heater. After the timer coil is energized, the circuit will show a delayed closing contact that energizes a small motor on 120 volts.

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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 9, Problem 6SQ
Textbook Problem
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On a separate sheet of paper, draw an elementary diagram of a fractional horsepower, manual motor starter. When the starter contact is closed, it will energize a pneumatic timing relay coil through the overload heater. After the timer coil is energized, the circuit will show a delayed closing contact that energizes a small motor on 120 volts.

To determine

Sketch an elementary diagram of a fractional horsepower (FHP), manual motor starter.

Explanation of Solution

Discussion:

A pneumatic timing relay is energized through the overload heater, when the starter contact is closed. Once the timer coil is energized completely, a small motor is energized by delayed closing contact.

Refer to Figure 2-2 in the textbook for the diagram of single-pole manual starter to draw an elementary diagram of a fractional horsepower...

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