What is vector group? What is meant by DYN11?Why is it needed?
Answer Posted / shraddha
I read a number of answers but nobody has cleared about the
leading and lagging thing. In case of Dyn11, 11 indicates 11
o'clock i.e. a displacement of 30 degrees between HV and LV.
Now in this case, is HV leads LV by 30 degrees or vice
versa and how can one find out that in any of the cases.
Is This Answer Correct ? | 6 Yes | 14 No |
Post New Answer View All Answers
What is thresh hold value of current?
diff b/w elcb and rccb
what is High resistance grounding and whatis the criteria for the selection of High resistance grounding
why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)
What are the symptoms of a bad PG card of a drive (inverter) esp. of Yaskawa Ac Drives (inverters) G7 ?
Why the field rheostat is adjusted such that the voltmeter reads 380V
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 happen ehen synchronisation is done at below rated speed
how to calculate IR value of 33KV cable ??
Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?
what is diff. between earthing grid,earthing mess, earting grid?
how indusrial diesel generator work
what is die electric strnth of transformer ?
What is conventional thermal current (Ith)
how is the magnetic current test is different in delta-star and delta delta transformer.