EBK ELECTRICAL TRANSFORMERS AND ROTATIN
4th Edition
ISBN: 9781337025867
Author: Herman
Publisher: VST
expand_more
expand_more
format_list_bulleted
Question
Chapter 7, Problem 1RQ
To determine
The number of degrees by which, the voltages of a three phase system are out of each other.
Expert Solution & Answer
Explanation of Solution
Given:
The number of phases of the system
Calculation:
The below figure represents the three phase system.
Figure-(1)
Calculate the number of degrees
Thus, the number of degrees between the phase with each other of a three phase system is
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
Q5/ Determine the Nodal Voltage for the figure
13
V₁
R3
ww
20
z
4A
www
12
Ry 202
R₂602
ZA
The arc length voltage characteristic of a DC arc is given by the equation V=24+4L where
'V' is the arc voltage in volts and L' is the length in mm. The static volt-ampere
characteristic of the power source is approximated by a straight line with no load voltage of
80V and the short circuit current of 600A. Then the optimum arc length is
(mm).
B. Draw the circuit diagram for the figure below.
50 0
75 2
9 V
100 2
Chapter 7 Solutions
EBK ELECTRICAL TRANSFORMERS AND ROTATIN
Ch. 7 - Prob. 1RQCh. 7 - Prob. 2RQCh. 7 - A wye-connected load has a voltage of 480 V...Ch. 7 - A wye-connected load has a phase current of 25 A....Ch. 7 - Prob. 5RQCh. 7 - A delta connection has 30 A of current flowing...Ch. 7 - A three-phase load has a phase voltage of 240 V...Ch. 7 - If the load in question 7 is connected in a wye,...Ch. 7 - An alternator with a line voltage of 2400 V...Ch. 7 - Prob. 10RQ
Knowledge Booster
Similar questions
- Three inductors are connected in parallel. Inductor 1 has an inductance of 0.06 H; inductor 2 has an inductance of 0.05 H; and inductor 3 has an inductance of 0.1 H. What is the total inductance of this circuit?arrow_forwardHow many degrees are the current and voltage out of phase with each other in a pure resistive circuit?arrow_forwardHow did he get the correct answer can you please work it outarrow_forward
- how to solve it and how to now if - 120 or +120 i need her solving with explain please quickkarrow_forwardAn inductor has an inductive reactance of 250 Ω when connected to a 60-Hz line. What will be the inductive reactance if the inductor is connected to a 400-Hz line?arrow_forwardFour inductors, each having an inductance of 0.6 H, are connected in series. What is the total inductance of the circuit?arrow_forward
- The input power to a 3-phase load is measured as 6700 watts. If the line voltage and line current to the load are 430 V and 18 A respectively. The power factor of the System is,arrow_forwardA three-phase load has a phase voltage of 240 V and a phase current of 18 A. What is the apparent power of this load?arrow_forwardQUESTION 8 Consider the equations of motion of an armature controlled DC motor given by Jw(t)+bw (t) Ki(t) = -Tfriction - Tload (t) di (t) + Ri (t) + Kw (t) = Vin (t), dt where vin(t) is the input voltage and Tload(t) is the input load torque. The outputs are the armature current i(t) and the motor speed w(t). The steady-state response of motors are specified by nominal voltage, stall torque, stall current, no load speed, and no load current. At steady-state operation, the motor equations satisfy bo) -Ki =-T -T. fric load Ri +Kov_- 55 55 The stall torque is the load torque required stead-state speed of the motor is zero. The stall current is the armature current when the motor speed is zero. The no load speed is the speed of motor when the load torque is zero. The no load current is the current when the load torque is zero. What is stall torque for this motor in N-m? Keep 3 significant figures, and do not include units. Use Scientific notation. The constants are given below. Nominal…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Electrical Transformers and Rotating MachinesMechanical EngineeringISBN:9781305494817Author:Stephen L. HermanPublisher:Cengage LearningUnderstanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage LearningRefrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Electrical Transformers and Rotating Machines
Mechanical Engineering
ISBN:9781305494817
Author:Stephen L. Herman
Publisher:Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning