Industrial Motor Control
7th Edition
ISBN: 9781133691808
Author: Stephen Herman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 20, Problem 1RQ
To determine
The operation of the circuit 2 if contact M1 did not close.
Expert Solution & Answer
Explanation of Solution
Consider the contact M1 is not closed and the current do not flow through the auxiliary contact and to the motor starter, then to the relay coil TR1. Thus, the motor 1 do not operate and the timer delay coil TR1 is DE energized. Since, the de-energized coil fails to close the contact of the TR1 the motor 2 do not starts.
Consider that the motor M2 is in the off state so the timer delay coil TR2 is not energized and the contacts of the TR2 is closed so the motor M3 fails to operate.
Thus, the case when the contact M1 are open the three motors M1, M2 and M3 do not work.
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
Complet the solution:
Vavg Ti Te Ts Qhexp Nuexp htheo Re Nutheo Error
(m/s) (°C) (°C) (°C)
(W)
2.11 18.8 21.3 45.8
2.61 18.5 20.8 46.3
Heat transfer
Given data:
a= 10 cm.
L= 10 cm.
b= 20 cm.
H=40cm.
⚫ a = 10, cm: This could represent the width of the duct.
⚫b=20, cm: This might be the height of the duct.
⚫L = 10, cm: This usually stands for the length of the duct in
the direction of flow.
⚫H=40, cm: This could indicate the height of some
component or another duct-related dimension, but the exact
meaning depends on the experiment's context.
please explain each step and include drawings on the phase diagram. thanks
Write clearly which points correspond to concentration of solute in front of alpha, concentration of solute in front of beta, amount of solid in the liquid in front of alpha/beta, lowest possible energy (tangent), as well as any other important information.
Thank you
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Q3: A 4-stroke 6 litres engine is fuelled with methane (CH4) at an air-fuel ratio = 0.8. It operates at 2000 rpm with a volumetric efficiency of 80%. The exhaust (product) leaves the engine at 800 K, and the heat lost to the coolant is 3.4×105 kJ/kmol. What is the engine's output power? Assume both air and fuel (methane) inlet to the engine at 298 K. Take for methane, the molecular weight is M = 16 kg/kmol, and the heat of combustion is 50.01 MJ/kg. The ambient conditions (p = 101 kPa, T = 25 °C). (24 points)arrow_forwardTemperature (°C) 100 4. Consider the solidification of a binary Pb-10%Sn alloy. Assume that during solidification, there is complete mixing in the liquid and no diffusion in the solid. Use the phase diagram below to answer the following question. (a) Draw (on the phase diagram) the compositions of the liquid and the solid at the interface as a function of temperature during solidification. (b) Illustrate on the phase diagram how one would calculate the volume fraction solidified at a given temperature. (c) (d) Indicate the temperature at which solidification is complete. Do you expect ẞ to be present in the as-cast microstructure? Explain 300 327°C 200 a (Pb) 20 20 a + L 18.3 183°C α + β 40 60 Composition (wt% Sn) Liquid 600 500 232°C B+L 400 B 61.9 97.8 300 808 100 (Sn) 200 100 Temperature (°F)arrow_forwardI tried this problem a couple of times and don't know where I'm going wrong can you help me out pleasearrow_forward
- y(0)=1, Using Laplace transforms solve the following differential equations : 11) y"-4y+4y=0, 12) y+2y+2y=0, y(0)=2.1, y'(0) = 3.9 y'(0)=-3. 13) y+7y+12y=21e", y(0)=3.5, y'(0)=-10. 14) +9y=10e. y(0)=0, y'(0) = 0. 15) y+3y+2.25y=91³ +64, y(0)=1, y'(0) = 31.5 16) -6y+5y= 29 cos(21), y(0)=3.2, y'(0)=6.2 17) "+2y+2y=0, y(0)=0, y'(0)=1. 18) +2y+17y=0, y(0)=0, y'(0)=12. 19) y-4y+5y=0, y(0)=1, y'(0) = 2. 20) 9y-6y+y=0, y(0)=3, y'(0)=1. 21) -2y+10y=0, y(0)=3, y'(0)=3.arrow_forward4. Consider the rectangulan 2535 Let 16 a and section discussed 977b + class. in ie make a M thin" rectangle, Can you you show that Q = Go {a² = x² } . Imax = 2 Ga ты J =arrow_forward1. Consider a circular shaft in torsion that of radius r=b has a key way as shown, circle of radius a Let us try the solution x₁ (5,0) = k (6² = r²) (1- 2 awso 1.1 Does this solve the problem for the stres rer 1,2 Solve for is and 23.arrow_forward
- 3. - a For an elliptical cross that the tangent to section resultant shear can you s stress is show ellipse with the same 24 i ratio of eccentricity, in passes through to point alb that in question, it + Parrow_forward2. Consider the rod with an elliptical that strain 4 a Cross secton considered in class, Integrate the was displacement displacements, relations to obtain thearrow_forwardPlease answer Oxygen at 300 kPa and 90°C flowing at an average velocity of 3 m/s is expanded in an adiabatic nozzle. What is the maximum velocity of the oxygen at the outlet of this nozzle when the outlet pressure is 60 kPa? Use the table containing the ideal gas specific heats of various common gases. The maximum velocity of the oxygen at the outlet of this nozzle is 532.5 Numeric ResponseEdit Unavailable. 532.5 incorrect.m/s.arrow_forward
- A container filled with 70 kg of liquid water at 95°C is placed in a 90-m3 room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Assume the room is at the sea level, well sealed, and heavily insulated. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Determine the amount of heat transfer between the water and the air in the room. The amount of heat transfer between the water and the air in the room is kJ.arrow_forwardA strain gauge rosette that is attached to the surface of a stressed component gives 3 readings (ɛa = A, b = B, &c = C). If the strain gauge rosette is of the D° type (indicating the angle between each of the gauges), construct a Mohr's Strain Circle overleaf. You should assume that gauge A is aligned along the x-axis. Using the Mohr's Strain Circle calculate the: (i) principal strains (ε1, 2)? (ii) principal angles (1, 2)? You should measure these anticlockwise from the y-axis. (iii) maximum shear strain in the plane (ymax)?arrow_forwardQ1. If the yield stress (σy) of a material is 375MPa, determine whether yield is predicted for the stresses acting on both the elements shown below using: (a) Tresca Criterion (b) Von Mises Criterion P Element A R S Element B Note: your values for P (vertical load on Element A) should be negative (i.e. corresponding to a compressive vertical load).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
Electrical Transformers and Rotating MachinesMechanical EngineeringISBN:9781305494817Author:Stephen L. HermanPublisher:Cengage Learning
Precision Machining Technology (MindTap Course Li...Mechanical EngineeringISBN:9781285444543Author:Peter J. Hoffman, Eric S. Hopewell, Brian JanesPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Electrical Transformers and Rotating Machines
Mechanical Engineering
ISBN:9781305494817
Author:Stephen L. Herman
Publisher:Cengage Learning
Precision Machining Technology (MindTap Course Li...
Mechanical Engineering
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning