what are the types used for alternator earthing,what will
happen if more than two alternator is working in
parallel with each having own system earthing.is there any
possibility for circulating current in between two system.




Answers were Sorted based on User's Feedback



what are the types used for alternator earthing,what will happen if more than two alternator is ..

Answer / prw

The earths of each alternator must not be connected at the
same time because this will result in third harmonic
current flowing causing excessive heating. The earth should
be switched so that only one earth is connected to ground

Is This Answer Correct ?    17 Yes 1 No

what are the types used for alternator earthing,what will happen if more than two alternator is ..

Answer / sudheer

if two alternators running parallel and both alternators
neutral grounded by one earthing strip, there is chance of
circulating current. because the unbalanced current flow
through the neutral of one alt.to second alt.by the neutral.
if both alternators earthing is separate , then no chance
of circulating current.

Is This Answer Correct ?    13 Yes 6 No

what are the types used for alternator earthing,what will happen if more than two alternator is ..

Answer / er. ankush miglani

the two types of earthing is used: 1. pipe type earthing
2. sheet type earthing
NOTHING WILL HAPPEN WHEN TWO ALTERNATORS ARE WORKING
PARALLEL WITH EACH HAVING ITS OWN EARTHING.
NO THERES NO POSIBILITY OF CURRENT CIRCULATION.

Is This Answer Correct ?    7 Yes 12 No



Post New Answer



More Electrical Engineering Interview Questions

What is the field weakening mode of a ac motor?

1 Answers   L&T,


what is the difference between CT and CVT in EHV Sub Stations

4 Answers   Hofincons, Lanco, TATA,


how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,


What happens if a three phase induction motor is suddenly single-phased while running? Which type of winding connection will be affected?

22 Answers   DRDO, FACT, B4S Solutions, SL Electricals,


If auto trip is operated, can you close the breaker.

2 Answers   KSEB, Siemens, L&T,






in 11kv generators the neutral point is connected to earth via earth coil while in the 33 / 11 kv transformer the neutral point is connected to earth via earth resistor why? 

1 Answers  


If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........

3 Answers   MacLellan,


how the fan is switched off immediately switching off the switch?

2 Answers  


IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 Answers  


how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

0 Answers   Hindustan Unilever Limited,


WHY HOLDING CONTACTOR OF MOTOR STARTER IS CALLED NO VOLT COIL.

3 Answers  


can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

0 Answers   UPSC,






Categories
  • Civil Engineering Interview Questions Civil Engineering (5062)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4327)
  • Electrical Engineering Interview Questions Electrical Engineering (16561)
  • Electronics Communications Interview Questions Electronics Communications (3564)
  • Chemical Engineering Interview Questions Chemical Engineering (959)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (253)
  • Instrumentation Interview Questions Instrumentation (2972)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (90)
  • Marine Engineering Interview Questions Marine Engineering (107)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Textile Engineering Interview Questions Textile Engineering (198)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (90)
  • Engineering AllOther Interview Questions Engineering AllOther (1376)