HOW DOES ONE SELECT A TRANSFORMER PHASOR GROUP IE, WHETHER
A STAR-DELTA TR OR A STAR-STAR OR A DELTA-DELTA, ETC.
TRANSFORMER IS MORE SUITABLE FOR A PARTICULAR KIND OF LOAD
OR WORKING CONDITION???
Answers were Sorted based on User's Feedback
Answer / p v
A Delta to Star more practical. Neutral is available on
load side for Line to Neutral voltage.
The Delta on the supply side will filter the undesired 3rd
harmonic.
Is This Answer Correct ? | 3 Yes | 1 No |
Answer / hareesh kumar s d
a delta 2 star transformer s used when there s a need of
neytral for examole industrial lighting. all conversions
depend on your load
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / gurucharan singh
Delta star is required only when distrbution system is
required or for higher voltage transmission line to cut
down high power tranformer insulation cost. Delta at
primary is preferred as it does not passes earth fault to
system at delta side. star with neutral is required for
detection earth fault curren, unbalanced loads, single
phase loads...star star or delta delta are considered
normally at same voltage ratio to lower down system fault
current at secondary side.
Is This Answer Correct ? | 0 Yes | 0 No |
Draw torque - speed curve and load curve of induction motor? mark operating point ?
why the armature coil in dc machine is round?? swagat k.
what is mutual induction principle?
If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units
What is the different type of class in CTS and why it is required
how we calculate full load current of A.C & D.C Motors?
kindly tell me how the load on generator increase by just increasing the fuel of prime mover, as if for exampple 20 MW gen set is synchronized the load ramps from zero to 20 MW gradully and during this procress only fuel of prime mover increases. Which thing determines the load on generator with respect to fuel
1.what is surge 2.what is lightning 3.what is switching 4.difference between surge,lightning,switching used in power system 4.definition of surgearrestor,lightningarrestor 5.adv and disadv of surgearrestor,lightningarrestor 6.uses and purpose of surgearrestorand lightning arrestor 7.block dia of surge arrestor 8.blockdiagram of lightning arrestor 9.operation and working of surge arrestor and lightning arrestor 10.basic formula of surgearrestor and lightning arrestor 11.basic diagram of surge arrestor and lightning arrestor
1 Answers Crompton Greaves, Framo, L&T,
can we identify the direction of power flow in transmission line by after only looking the tower
7 Answers TNEB Tamil Nadu Electricity Board,
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
What is the distance b/w R&Y phase in 33kv T.line,11kv &440v
what is IP65 & What is its advantages