when the motor was star position that is running ok but when
the motor was delta it was tripped? why?
Answers were Sorted based on User's Feedback
Answer / pawanchauhan12
basically this type of problem created when motor winding delta coil sequence not proper. For finding of fault following this processor :- Firstly check motor winding continuity 1:5{RR} ,2:6{YY} & 4:3{BB} .if continuity not matched then interchanged sequence of {RR} wire of power .if problem not solved then again interchanged second sequence of {YY} wire of cable .
Is This Answer Correct ? | 5 Yes | 2 No |
Answer / pramit dutta
By connecting the stator winding 1st in star and then in delta
,the line current drawn by motor at starting is reduced to 1/3 th as compared to starting current with the windings connected in delta.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / santosh kumar kishore
in delta connection motor takes more current and in star
position motor takes less current so either change
connection or increase relay setting.
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / a p patil
motor star connection join winding terminal C2,A2
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / naveen joshi
There are many reason whether resistance increased by terminal contact in motor or phase difference in roter and stator not matched during transition from star to delta , increase the pause timing in timer .
.
Is This Answer Correct ? | 0 Yes | 0 No |
if generator is running in iso mode parrallel with grid and suddenly grid breaker off what will happen?
Whats the purpose of neutral earthing?
5 Answers Electrical, Hindalco, TCS,
which motor is used in high mast ( street light) & give the hight of tower .
2 Answers Construction, Honda,
defination of reactor
What are the advantages and disadvantages of the ac motors?
What is maximum demand and contract demand?
how to calculate bus-bar sizes? (copper bus-bars)
what is POTT and PUTT explain?
How to model two generators into a single generator ? Eg. two generators connected to a bus, would like to model it as a single generator connected to a bus.
Why charcoal and salt add in earthing pit.
6 Answers Garware, NTPC, Sterling Wilson,
What is difference between isolator and circuit breaker?
What is the maximum number of swithes that can be connected in series up to down stream point in an LV Distribution system?