Interested to Buy Any Domain ? << Click Here >> for more details...
DOES AN EARTH FAULT CURRENT ON THE DELTA SIDE OF A 6.6/33KV
STEP UP STAR-DELTA CONNECTED TRANSFORMER REFLECT ON THE
STAR SIDE? IF YES, THEN HOW AND WHAT IS THE AMOUNT OF
CURRENT REFLECTED?
- 1 Answers
- 5308 Views
- I also Faced
- E-Mail Answers
Answer Posted / k.prakashchandra
There can not be earth fault on delta side as there is no
neutral for earthing and the neutral of the primary gets
isolated .It is customary to have delta -star step up
transformer instead of star-delta.
| Is This Answer Correct ? | 1 Yes | 9 No |
Post New Answer View All Answers
why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?
how calculated Transformer losses.
What is the main cause of magnetism?
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
how to compute kvar in substation feeder to improve power factor and sending voltage
I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
Why do we use center tap transformer that used with portable tools
HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?
pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )
Describe the control mechanism of missile launcher???
What will be the output voltage of a transformer if it is primarily energized from a square wave voltage source?
how are reversing the direction of rotation of dc motor
armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?
