why the starting current of a motor is high?
Answer Posted / jayaram
iniatially the motor don't have any backemf so motor draw
high current at the starting stage. whenever motor is
started it generates backemf so motor takes normal load
current.
| Is This Answer Correct ? | 12 Yes | 1 No |
Post New Answer View All Answers
briefly explain principle of resistance welding
What is the reason that the humming sound is coming from the induction furnace panel?
why capacitive load is not used in routine life????any reason is there ??????
why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?
What cmos is and its benefits?
what is the use of power transformer in GSS.
is it value of power factor is more than unit. whats effects in the source supply
critically criticize the application of ring main unit in power system
Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.
How will be the single line diagram of series trip HT breaker? how it works?
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!
how we can calcultae the short circuit level for bus bar
Why syn. Generators are used for the production of electricity?
i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection