Interested to Buy Any Domain ? << Click Here >> for more details...
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???
- 3 Answers
- 7807 Views
- KPTCL, I also Faced
- E-Mail Answers
Answer Posted / 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 |
Post New Answer View All Answers
WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)
State norton’s theorem?
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
i have 3500 amp load and select current transformer and perches.how i calculate .please understand
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?
Write the force balance equation of ideal dashpot element.
various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.
Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC
What should be the height of basement according to NBCC code?
am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?
HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER
On what basis the the size of Lightning arrester for buildings are selected ?
what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
Explain the working of variable frequency transformer?
