Electrical Motor Controls for Integrated Systems
5th Edition
ISBN: 9780826912268
Author: Gary Rockis;Glen A. Mazur
Publisher: American Technical Publishers
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Chapter 17.1, Problem 2CP
To determine
To explain: Whether a breaking force will be applied to a motor shaft or not, when the circuit has no power.
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Please draw logic circuit
A 220-volt, 20-horsepower compound motor (long shunt, Figure 21–16A) has an armature resistance of 0.25 ohm, series field resistance of 0.19 ohm, and shunt field resistance of 33 ohms.
a. Calculate the current taken by the motor at the instant of starting if it is con-nected directly to the 220-volt line.
b. Calculate the current when the motor is running if the armature is developing 184 volts counter-emf.
Design a modulo-11 ripple (asynchronous) up-counter with negative edge-triggered T flip-flops and draw the corresponding logic circuit.
(I)Build the state diagram and extract the state table
(II)Draw the logic circuit
(III)What is the maximum modulus of the counter?
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Electrical Motor Controls for Integrated Systems
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