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 33, Problem 8SQ
How many windings are required for three-speed motors?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
"I need proof in the solution and a supported
source with the solution."
Write a 8086 microprocessor program to clear (100) consecutive memory locations starting at
offset address 8000H. Assume the data segment value equal to 3000H
write an 8086 microprocessor program to add two numbers each of four bytes. The first number
(least significant byte) starts at memory offset 0500H and the second number (least significant byte)
start at offset memory address 0600H Assume the data segment value equal to 0100H.Store the result
at memory offset starts 0800H
write a program to move a block of 100 numbers consecutive bytes of data strings at
offset address 8000 H in memory to another block of memory locations starting at offset
address A000 H. assume that both blocks are in the same data segment value 3000H
(25 Marks)
Write a program to multiply AX by (10.5) using shift instruction
solve simultaneous equation for the analogue computer given in figure
5.2 Explain how a rotating commutator winding may be represented as an
equivalent pseudo-stationary coil along the brush axis, and describe
the special properties of this type of coil.
Write the general voltage and torque equations for the two-pole
commutator machine shown in Fig. Prob. 5.2. Explain how the
rotational inductance coefficients (G) may be obtained in terms of the
Land 1 inductance coefficients.
q-axis
9
Fig. Prob. 5.2
d-axis
Chapter 33 Solutions
EBK ELECTRIC MOTOR CONTROL
Ch. 33 - Prob. 1SQCh. 33 - Prob. 2SQCh. 33 - Prob. 3SQCh. 33 - What is the primary reason for using a compelling...Ch. 33 - What is the purpose of an accelerating relay?Ch. 33 - When is it most important to use decelerating...Ch. 33 - Why are different motor connections shown for what...Ch. 33 - How many windings are required for three-speed...
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
- (b) Derive the steady state voltage equations for a compensated metadyne generator shown in Fig.1 A 2kW, 200V, 1500rpm, 2-pole fully compensated metadyne generator has the following parameters: Field self inductance and resistance 30Η, 200Ω Armature self inductance and resistance 0.067, 1 Ω - Field armature mutual inductance 1.2H Calculate for steady state operation, the field current and power gain at rated output. 19-axis १६ Fig. 1 Laxis -arrow_forwardQ2: Determine the suitable auto-transformation ratio for starting a 3-phase induction motor with line current not exceeding three times the full-load current. The short-circuit current is 5 times the full-load current and full-load slip is 5%. Estimate also the starting torque in terms of the full-load torque.arrow_forward(a) Explain the required tests to construct the circle diagram of the induction motor. The stator leakage impedance of a star connected induction motor is (0.5+j1.4) § per phase, and the rotor leakage impedance referred to stator is (0.6+j1.5) 2 per phase. Neglect the magnitizing current, estimate the line current and torque if the machine runs with a slip of 5 percent when connected to a 400V three phase supply (i) normal operation, and (ii) with one line open.arrow_forward
- Q2. Enumerate the stages in derivation from first principles of the voltage equation for unbalanced operation of three phase induction motor. Find the efficiency of an induction motor at full load. The machine details are given in the following: 2000hp, 2300V, 3-phase star connected, 60Hz, 4-pole, full load slip R, 0.022, R, 0.1202, Re-451.29, X=500, X, X,=0.320, = 0.03746, When the speed is 1400rpm, using the synchronous reference frames model and rotating reference model. [17M]arrow_forwardDerive the steady state voltage equations for a compensated metadyne generator shown in Fig.1 A 2kW, 200V, 1500rpm, 2-pole fully compensated metadyne generator has the following parameters: Field self inductance and resistance 30Η, 200Ω Armature self inductance and resistance 0.06Η, 1 Ω Field armature mutual inductance 1.2H Calculate for steady state operation, the field current and power gain at rated output. 19-axis บ Fig. 1 F daxisarrow_forward(b) Derive the transformations for currents between a rotating balanced two phase (a,ẞ) winding and a pseudo stationary two phase (d,q) winding. (assume equal turns on all coils). From power invariance, show that the voltage transformations are identical to those for the currents. Describe, from physical concepts, how the transformation may be used to represent a three phase synchronous machine. Explain how torque is developed.arrow_forward
- Q3. (a) Explain the principle of operation of the induction generator and compare its characteristics with those of the alternator. (b) A 3 phase synchronous generator is delivering a power of 0.9 infinite bus at rated voltage and at a pf 0.8 lagging. The generator has X-1 & X=0.6p.u. Determine the load angle and the excitation voltage. In case loss of excitation takes place, will the generator remain in synchronism?arrow_forwardGeneralized Machine Theory Attempt ALL Questions. Q1. (a) Explain and illustrate the object of the performance analysis of any type of machine by unified theory. [8M]arrow_forward"Using emu8086 programming, I need two different solutions based on a source." write a program to move a block of 100 numbers consecutive bytes of data strings at offset address 8000 H in memory to another block of memory locations starting at offset address A000 H. assume that both blocks are in the same data segment value 3000H . Write an 8086 program that complements the first byte of flags register.arrow_forward
- "I need proof in the solution and a supported source with the solution." a. Write an 8086-microprocessor program to clear bits 0 to 5, set bits 6 to 10 and complement bits 11 to 15 of word stored in a memory location 34000H. b. Write an 8086-microprocessor program to added number 5 to each number from (16 to 0) and then store in memory locations starting at the offset address of 3000H.arrow_forward"I need proof in the solution and a supported source with the solution." a. There are 20 data bytes are stored in memory location with offset address 3000H. Write 8086 microprocessor program to transfer the block of data to new location with offset address 4001H. b. Write an 8086 program to implement the equation g=x(y + z) where x = 10H, y = 20H and z = 30H and store the result in a memory location 45000H.arrow_forward"Using emu8086 programming, I need two different solutions based on a source." Write an assembly language program to execute of the following tasks: 1. Execute the operation of an EX-NOR (exclusive nor) without utilizing the XOR instruction. 2. Without using DIV instruction, divide the content AX by (L=8).arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
How Electric Motors Work - 3 phase AC induction motors ac motor; Author: The Engineering Mindset;https://www.youtube.com/watch?v=59HBoIXzX_c;License: Standard Youtube License