Interested to Buy Any Domain ? << Click Here >> for more details...
What is vector group? What is meant by DYN11?Why is it needed?
- 13 Answers
- 86081 Views
- Areva, Bhel, BRG, Escorts, Fortis, I also Faced
- E-Mail Answers
Answer Posted / bikash chandra pal
Abobe two reply explained correctly "what is vector group".
The answer to the last question "why it is needed" is as
follows:-
By virtue of constrction & terminal connections of the
transformer, a difference between primary vector &
secondery vector occurs. We need to know the same for the
following reasons:-
1)Matching of vector group is required (to avoid
circulating current/ fault ), when 2 transformer need to be
operate parallal on a common bus/system.
2) to provide transformer differential protection correctly.
etc
| Is This Answer Correct ? | 37 Yes | 23 No |
Post New Answer View All Answers
Draw the circuit of clapp oscillator?
I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR
HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????
what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?
how to calculate the torque of a motor?
Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing
how we select ac fuse rating of an power inverter???
I need HT sphere gap calibration table. Can any body help me.
Why different Pressure switch used in marine boiler water circulation system
If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.
what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW
Define reserve-generating capacity?
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
How to calculate ant test the burden of Current transformer
what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth
