In our plant we are having 6.6 v motor wih MV drive running
frm last two years.udenly at some speed motor getting vey
vibrations what is the problem
Answer Posted / anurag pattanayak
could be resonance...try skipping the critical speed...
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the resonant peak?
kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased
which model T or pie model is prefarable in power syatem
What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?
When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?
what is spadar bar .why I use in DC generator.
what is mean by transition resistance of transformer?
Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?
in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?
Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?
is it possible to say motor horsepower number without seeing name plate(when name plate damaged)
A low wet bulb temperature indicates
WHat is the general checks required for Dry type transformers
what is the purpose of silicon dropper used in battery charger?
What is EHT tariff or Power factor Tariff ????