Electric Motor Control
Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
bartleby

Videos

Textbook Question
Book Icon
Chapter 20, Problem 1SQ

Using the schematic diagram in Figure 20–23, determine the number of control wires needed to control the three-phase motor. Use the terminal and wire identification shown in the schematic as well as proper power circuit identification.

Chapter 20, Problem 1SQ, Using the schematic diagram in Figure 2023, determine the number of control wires needed to control

FIG. 20–23

Expert Solution & Answer
Check Mark
To determine

Calculate the number of control wires required to control the three-phase motor in Figure 20–23.

Explanation of Solution

The 3 wires are connected to the externally operated disconnect switch, and the switch is connected to pull box through 3 wires. Four wires are used to connect stations 1 and 2. Four wires and three wires are used to connect station 2 and station 3 to pull box, respectively. The pull box is connected to motor starter using 6 wires, and finally, starter is connected to a three-phase motor using 3 wires. Redraw the given figure with the representation of the required control wires as shown in Figure 1.

Electric Motor Control, Chapter 20, Problem 1SQ

Conclusion:

Thus, the number of control wires required to control the three-phase motor in Figure 20-23 is calculated.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Design a counter to count-up from 2 to 7 using three of D Flip Flops (3) 3-Bit Count up (3 to 5) Using D Flip-Flop: The State Equation of D Flip-Flop: Q(t+1)=D(t) => Dn=Qn Present State D Flip-Flop Next State n Q2p Q1p Q0p 3 0 1 1 1 Q2n Q1n Q0n D2 D1 D0 0 0 1 0 0 4 1 0 0 1 0 1 1 0 1 5 1 0 1 0 1 1 01 1 D2-Sum(3,4) and don't care X-Sum(0,1,2,6,7) D1=Sum(5) and don't care X=Sum(0,1,2,6,7) D0=Sum(4,5) and don't care X=Sum(0,1,2,6,7) Using K-map to simplify the functions: D2=Q1+Q0' D1=Q1'QO DO=Q1' XOX XOX Q2 10 Q2 01 Q2 1xx Q0 QO Qo D2 Q2 >CK Q2 D1 Q1 BCD CK Q1 DO QF ►CK Q0 ☐ Present State Next State D Flip-Flop n Q2p Q1p Q0p Q2n Q1n Q0n D2 D1 D0 2 0 1 0 0 1 1 0 1 1 3 0 1 1 1 0 0 1 00 4 1 0 0 1 0 1 1 0 1 5 1 0 1 1 1 0 1 1 0 6 1 1 0 0 1 0 0 1 0 D2 D2=Sum(3,4,5), X=Sum(0,1,7) D1 Q2 1 Q1 1 0 ☑ 0 Qo D2=Q0+Q1' ✗ 0 Q1
Consider the following 4×1 multiplexer with inputs: w0=2, w1=1, w2=x2' and w3=0 And with switches: S1 x1 and S0=x0 What is the multiplexer output f as a function of x2, x1 and x0?
I need help adding a capacitor and a Zener diode to my circuit. I’m looking for a simple sketch or diagram showing how to connect them. i want diagram with final circuit after adding the zener diad and capacitor. don't do calclution or anything. thanks

Chapter 20 Solutions

Electric Motor Control

Knowledge Booster
Background pattern image
Electrical Engineering
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Electric Motor Control
Electrical Engineering
ISBN:9781133702818
Author:Herman
Publisher:CENGAGE L
Types of Protective Relays and Design Requirements, Part 1a.; Author: GeneralPAC: Power System Tutorials;https://www.youtube.com/watch?v=JYil4T5VSDM;License: Standard Youtube License