how can we avoid magnetostriction in transformer?describe
the suitable methods.

Answers were Sorted based on User's Feedback



how can we avoid magnetostriction in transformer?describe the suitable methods...

Answer / adil akhtar

we can avoid magnostriction by (1) using the difrent type of
alloy of iron in the core sheets.(2) using the slicon steel
in the core.(3) leminating the magnetic alloy when their
surfaces are abraded.

Is This Answer Correct ?    11 Yes 3 No

how can we avoid magnetostriction in transformer?describe the suitable methods...

Answer / i_dinz

magnetostriction- the magnetic materials have a structure
called domains., as for AC, the domain in the materials
rotate for every magnetisation and demagnetisation cycles..,

by selecting proper core grades we can reduce the M.effect,
the core which has low hystersis has less M.effect

the magnetostriction also due to improper GRAIN ORIENTED
MOMENTS in the material,

So CRGO silicon sheets are used, wher there is a proper
grain orientation

CRGO-cold rolled grain oriented.

Is This Answer Correct ?    11 Yes 3 No

how can we avoid magnetostriction in transformer?describe the suitable methods...

Answer / dilip kumar

Magnetostriction is the effect due to non uniform arrangement domain or grain in the core material.
when alternating current is passed through the core having non uniform grain arrangement, then for every positive and negative cycle the transformer core tries to expand and contract (100 times/sec for 50Hz transformer), due to which some fast vibrations are produced on the transformer,which inturn produces a humming noise in the transformer), it cannot be avoided.

Magnetostriction can be minimized by using the cores which have more uniform grain orientation. (eg:CRGO)

TO totally avoid the Magnetostriction effect, one should go for DC instead of AC (where you can't say that as a transformer anymore).

HOPE IT HELPS!!!

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

WHAT ARE THE DFT AND RMS MEASURMENTS PRINCIPLE IN NUMERICAL TECHNOLOGY OF POWER SYSTEM ?? WHICH IS BETTER IN WHICH QUANTITY MEASURNMENT??

1 Answers  


In Transformer testing at Shop test we normally test for vector group, open ckt.,short ckt. but what are the other test performed for transformer once it reaches at site.For e.g:if the transformer is dry having rating 1000KVA?

2 Answers  


What is accuracy of a measurement?

0 Answers  


What are the types of earthing? Explain dagramatically.

3 Answers   Siemens,


what is the work of trip circuit supervision relay?

2 Answers   Volkswagen,






what should be 3phase motor capacity or rating to connect in star connection. what should be 3phase motor capacity or rating to connect in delta connection. what should be 3phase motor capacity or rating to connect in star delta connection

1 Answers  


the winding of Gen and Motor is star or in delta ??? and why

1 Answers  


IF THE OUTPUT OF A 100KVA, 415V GENERATOR IS STEPPED UP TO 11KV WITH A 500KVA TRANSFORMER,CAN THE TRANSFORMER BE LOADED ABOVE THE SOURCE GENERATOR RATING?

4 Answers  


line diagram for mcb , mccb , rccb .

1 Answers  


What is technical difference between ELCB & ELMCB?

3 Answers  


Excat meaning of burden in only one word?

3 Answers   Bhel, DG Electricals,


What is the practical way to calculate the cable size for known ampere load?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)