EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 14, Problem 1SQ
What is the purpose of phase failure relays?
Expert Solution & Answer
To determine
State the purpose of phase failure relays.
Answer to Problem 1SQ
The purpose of phase failure relay is to disconnect the loads on the event of phase failure.
Explanation of Solution
Phase failure relay:
Phase failure relay are the type of protective relays. When the three-phase motor is running, if a fuse blows or the wire connected to motor breaks, the motor will operate in single-phase but the serious over-heating might occur. To prevent the motor from these situations, phase failure relay is utilized.
The main purpose of phase failure relays is to disconnect loads, like motors, from the power supply in the event they fail.
Conclusion:
Thus, the purpose of phase failure relay is to disconnect the loads on the event of phase failure.
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
Find the inverse Z-transform of X(z) using partial fraction method
X(z) =
z²+Z
Z2-3Z+2
for
i) ROC 12
iii) ROC |z| <1
.The previous solution does not explain the steps
Consider the signal:
f(t) =
글씨를
1
0,
otherwise
Use the Fourier transform formula to find F(w).
3. Find the transfer function and show all steps.
Chapter 14 Solutions
EBK ELECTRIC MOTOR CONTROL
Knowledge Booster
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
- 6. Determine the type of the filter in the following figure and calculate the cut off frequency fc, show all steps.arrow_forward5. Find the Transfer Function of the following circuit. Prove that it’s a low pass filter, show all steps.arrow_forward2. Find the transfer function, show all steps.arrow_forward
- I have this fsk function code: function [x]=fsk_encode(b,s,f0,f1,N,Fs,K) % b= bit sequence vector % s(1)= output level for 0 % s(2)= output level for 1 % N= length of bit sequence % Fs= Sampling frequency y=zeros(1,N*K); %Setup output vector %for each bit calculatee the rando samples for n=1:N for k=1:K t = (k - 1) / Fs; if(b(n)==0) y((n-1)*K+k)=cos(2*pi*f0*t); % pulse=0 else y((n-1)*K+k)=cos(2*pi*f1*t); % pulse=1 end end x=y; %set output end And this is another code that calls the function in order to get the power density spectrum: clc;clear; % EE 382 Communication Systems- Lab 8 % Plots the power spectrum of the ASK modulation % First specify some parameters N=256; % number of bits per realization M=100; % number of realizations in the ensemble T=0.001; % bit duration in seconds delf =2e+3; fc=10e+3; f0=fc-delf; f1=fc+delf; Fs=8*f1; % sampling frequency (this is needed to calibrate the frequency axis) K=(T/(1/Fs)); % Define arrays for bit sequences and sampled waveforms…arrow_forwardCalculate the parameters in the figurearrow_forwardWrite the angle expression form of first null beam width FNBW) for 2/2 dipole. for 즐, 꽃 3arrow_forward
- The circuit is in the DC steady state, So all transients are passed. What are the values of 1 and V, under those conditions. P 24v + + √2 АЛАД 42 4F 3.H ww 22 eee + 203 Varrow_forwardFind the value of Vc (t) for all I That is, the complete response including natural and forced responses.) АДДА 422 OV ДААД t = 0 3F + V(t) -arrow_forward1.0 Half-power point (left) 0.5 Minor lobes Main lobe maximum direction Main lobe Half-power point (right) Half-power beamwidth (HP) Beamwidth between first nulls (BWFN) *Which of the following Lobes of an antenna Pattern 180 out of Phase the main Lobe ? And where are the ch other gems ?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning
EBK ELECTRICAL WIRING RESIDENTIALElectrical EngineeringISBN:9781337516549Author:SimmonsPublisher:CENGAGE LEARNING - CONSIGNMENT
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
EBK ELECTRICAL WIRING RESIDENTIAL
Electrical Engineering
ISBN:9781337516549
Author:Simmons
Publisher:CENGAGE LEARNING - CONSIGNMENT
FMPR-103 pt1 l Power Systems Protection v1; Author: L&D for Protection and Control;https://www.youtube.com/watch?v=ELWncjsh5uE;License: Standard Youtube License