if you want to remove an article from website contact us from top.

# the disadvantages of scherbius system used for speed controlling in 3 phase induction motor is

Category :

### Mohammed

Guys, does anyone know the answer?

get the disadvantages of scherbius system used for speed controlling in 3 phase induction motor is from screen.

## Question: The disadvantages of scherbius system used for speed controlling ...

MCQs: The disadvantages of scherbius system used for speed controlling in 3 phase induction motor is - (A) It cannot be used for slip ring induction motors - (B) It cannot be used for squirrel cage induction motors

## The disadvantages of scherbius system used for speed controlling ...

Home / Electrical Engineering Questions / Electrical Machines Test Questions / The disadvantages of scherbius system used for speed controlling ...

Mcqs Clouds mcqsclouds.com

## The disadvantages of scherbius system used for speed controlling in 3 phase induction motor is

A. It cannot be used for slip ring induction motors

B. It cannot be used for squirrel cage induction motors

C. It can be used for large induction motors

D. None of these

Related Questions on Electrical Machines Test Questions

Iron losses are considered to be the constant losses. It depends on

Copper losses in a rotating machine are

A. Variable losses B. Constant losses C. Both (a) or (b) D. None of these View Answerr

Stray losses are the losses which vary with the load but their relationship with load current cannot be identified. Stay losses is maximum in

A. Synchronous machines

B. D.C. machines

C. Induction machines

D. Equal in all types of machines

The brush contact losses in a d.c. Machine is

A. Inversely proportional to the square of current

B. Directly proportional to the square of current

C. Inversely proportional to the current

D. Directly proportional to the current

Electrical power output in a d.c. generator is equal to

A. Electrical power developed in armature – copper losses

B. Mechanical power input – iron and friction losses

C. Electrical power developed in armature – iron and copper losses

D. Mechanical power input – iron and friction losses – copper losses

More Related Questions on Electrical Machines Test Questions

Aerospace & Aeronautical Mcqs

Agriculture Mcqs

Banking Exam Questions

Biology Mcqs

Career Aptitude Test

Central Superior Service Test Mcqs (CSS)

Chemical Engineering Mcqs

Chemistry Mcqs

Civil Engineering Mcqs

Computer Science MCQs

ECAT & MCAT Entry Test Mcqs

Economics Mcqs

Electrical Engineering Questions

Electronic Engineering Questions

English for Competitive Exams

English Literature Mcqs

English MCQs

General Knowledge Quiz

Geography Mcqs

Health & Physical MCQs

Islamic Studies Mcqs

Judiciary & Law Mcqs

Mathematics Quizzes MBA Questions

Mechanical Engineering Questions

Medical Subjects Mcqs

Pedagogy Mcqs Physics MCQs Placement Tests Science Mcqs Sociology Mcqs

Software Engineering Mcqs

Statistics Mcqs

स्रोत : mcqsclouds.com

## The disadvantages of scherbius system used for speed controlling in 3 phase induction motor is

MCQs: The disadvantages of scherbius system used for speed controlling in 3 phase induction motor is - Electrical Engineering Questions - Electrical Machines Test Questions

## Electrical Machines Test Questions

Home >> Category >> Electrical Engineering Questions >> Electrical Machines Test Questions >> The disadvantages of scherbius system used for speed controlling in 3 phase induction motor is

« Previous Next »

Engineering MCQs CBSE MCQs

Q.  The disadvantages of scherbius system used for speed controlling in 3 phase induction motor isa. It cannot be used for slip ring induction motorsb. It cannot be used for squirrel cage induction motorsc. It can be used for large induction motorsd. None of these

MCQs:  If the transformation ratio of an autotransformer is given by V2 / V1 then the ratio of power transferred to that of input power is given by

MCQs:  Use of an autotransformer is economical when its transformation ratio is

MCQs:  If an autotransformer having transformation ratio equal to 0.6 is supplying a load of 8kw then its power transferred from primary to secondary is given by

MCQs:  In an autotransformer if the power transferred inductively is equal to the power conducted through, then transformation ratio is given by

MCQs:  Whether the given autotransformer is step up or step down, its VA rating is always

MCQs:  Compared to the two winding transformer, in an autotransformer the leakage reactance and copper losses is

MCQs:  If a two winding transformer is converted into an autotransformer by applying additive polarity and subtractive polarity which results in the secondary voltages of 1840 and 1810 volts. Then the primary and secondary voltages of transformer are

MCQs:  A star connected three phase transformer is provided with tertiary delta connected winding which allows the flow of

MCQs:  A ferro resonant transformer regulation is also known as

MCQs:  In a constant voltage transformer, the primary winding and secondary winding is formed by the

MCQs:  A constant voltage transformer is fed with the sinusoidal input voltage. Its output is

MCQs:  The output voltage of constant voltage transformer contains excessive harmonics which can be filtered out by using

MCQs:  The constant voltage transformers are most commonly used in

MCQs:  In the operation of constant current transformer, two magnetic fields are produced. The magnetic field produced in the secondary is

MCQs:  The constant current transformer are mainly used for

MCQs:  The high leakage impedance transformers are suitable for the applications of

MCQs:  Small iron core transformers used in certain frequency range is also called audio frequency transformer. The audio frequency range is

MCQs:  Pulse transformers are small in size. The leakage inductance and permeability of alloy used is

MCQs:  In a three phase transformer, the angle between two consecutive cores is

MCQs:  In a three phase transformer, the current flowing in three primaries produces three corresponding fluxes. The sum of these three fluxes at any instant is

« Previous Next »

## Related Questions

Single phase induction motors are

According to double revolving field theo...

The spit phase induction motor has

In washing machines, most commonly used ...

Split phase induction motors are availab...

In capacitor start capacitor run inducti...

The capacitor connected permanently in c...

In refrigerators the commonly used motor...

In shaded pole induction motor, directio...

The starting torque and power factor of ...

In a single phase induction motor, the m...

The torque equation of single phase indu...

The stator of split phase induction moto...

A two phase servomotor is commonly used ...

For moment of inertia to be small in two...

A load of 110kW at 0.8 power factor is t...

If two transformers are operated in para...

For the same excitation voltage and wind...

स्रोत : teswesm.com

## 20 What are the advantages and disadvantages of Static Scherbius scheme of speed

20 What are the advantages and disadvantages of Static Scherbius scheme of speed from EE 1205 at Indian Institute of Technology, Chennai

## KINGS COLLEGE OF ENGINEERING DEPARTMENT OF MECHANICAL...

DOC PREVIEW Pages 8 Total views 100+

Indian Institute of Technology, Chennai

EE 1205 bibimohanan 05/26/2015

20. What are the advantages and disadvantages of Static Scherbiusscheme of speed control?21. Write the speed equation of an induction motor.22. What is VVVF control?PART-B1. Draw the power circuit arrangement of three phase variable frequencyinverter for the speed control of three phase induction motor and explain itsworking.(16)2. Explain the V/f control method of AC drive with neat sketches.(16)3. Discuss the speed control of AC motors by using three phase ACVoltage regulators.(16)4. Explain the speed control schemes of phase wound induction motors.(16)5. Explain the concatenation operation of three phase induction motors.Hence derive the speed experienced for the cascaded set.(16)6. Explain in detail about Slip power recovery scheme.(16)7. Explain the different methods of speed control used in three phaseinduction motors.(16)8. Explain the working of following methods with neat circuit diagram.i) Kramer system ii) Scherbius system(16)9. Explain in detail rotor resistance method of speed control of a slip ringinduction motor.(16)10. (i) Explain the operation of Pole changing method of speed control.(8)(ii) Explain the pole amplitude modulation method.(8)11. Explain the static Kramer method and static scherbius method of speedcontrol of three phase induction motor.(16)12. Explain in detail about the various methods of solid state speed controltechniques by using inverters.(16)13. Explain the solid state stator voltage control technique for the speedcontrol of three phase induction motor.(16)14. Explain the various methods of speed control of a three phase inductionmotor when fed through semiconductor devices.(16)

### We have textbook solutions for you!

The document you are viewing contains questions related to this textbook.

Chapter 23 / Exercise 1

Physics Laboratory Experiments

Wilson Expert Verified View Solutions

Browse all Textbook Solutions

## Become a Member

Up to 40 questions to ask our expert tutors

## Students also studied

HW #6 Solutions.pdf EEL 3111 10 HOMEWORK

EE106L_Exp3_Villas.docx

MITL 104 3

EE042-4-2-IES-Lab Manual-Guided-Expt 3 (1).docx

ENGINEERIN 104 7

IES-4-Experiment.docx

APLC CT101 14

HW#6_DC Machines.pdf

EEE MISC 1

FINALS_MACHINES_OT_1_LEC.pdf

EECE 2018115504 21 View More

## Related Q&A

An example of a polymerization reaction is the reaction of a glycol with an organic diisocyanate. Identify the polymeric material that is produced from this reaction. a. Polynuclear aromatic

Q&A

Ethanol is used not only in alcoholic beverages but is also produced for industrial purposes and as a biofuel. If a truck transporting ethanol is involved in a fire, choose the best way to mitigate

Q&A

Benzene, toluene, and xylene (commonly known as BTX) are the three most commonly encountered aromatic hydrocarbons. Which of the BTX compounds is the least volatile at 68 F? Xylene Toluene Benzene

Q&A

A box contains 1000 tickets. The values on the tickets are all different, and a histogram of the ticket values does not follow the normal curve. In fact, there are no values below zero, and the

Q&A

Natural polymers such as leather and wool contain amino acids. At fire scenes, they can thermally decompose to produce which of the following? Sulfur dioxide and ammonia Hydrogen sulfide and sulfur

Q&A

Ethers are a class of organic compounds that can be used as an organic solvent, refrigerant, and (previously as) an anesthetic. Other than their flammable characteristics, discuss the potential

Q&A

## Students also studied

HW #6 Solutions.pdf EEL 3111 10 HOMEWORK

EE106L_Exp3_Villas.docx

MITL 104 3

EE042-4-2-IES-Lab Manual-Guided-Expt 3 (1).docx

ENGINEERIN 104 7

IES-4-Experiment.docx

APLC CT101 14

HW#6_DC Machines.pdf

EEE MISC 1

FINALS_MACHINES_OT_1_LEC.pdf

स्रोत : www.coursehero.com

Do you want to see answer or more ?
Mohammed 1 month ago

Guys, does anyone know the answer?