why we step down voltage level from 33kv to 11kv and 11kv
to 415v.Instead we can step down voltage from 33kv to 415v
directly using single transformer.
- 12 Answers
- 69070 Views
- ABB, Adani, Central Electricals, Electrical, HCL, I also Faced
- E-Mail Answers
Answer Posted / rakesh singh
The fault level of 33 KV/.415KV transformer is less as
compaired to the 11KV/.415KV.So during the faulty
conditions the fault current will be high in the first case
and for the lighting circuit we will have to put lighting
transformers to reduce the fault level up to the fault with
stand capacity of lighting switch gears which are available
up to 10 KA only.
But for the power circuit i.e for MCC and PMCC for whitch
switch gear of 35 KA and 50 KA are available we can use 33
KV/.415KV transformer loking to our total load and
availabilty of supply at 33 KV volatage level.
| Is This Answer Correct ? | 7 Yes | 16 No |
Post New Answer View All Answers
what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.
What is online and offline ups? how does it works?
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
How the capacitance og capacitor volatage transformer is decided?
WHAT IS IM (INDEX OF MOUNTING )IN MOTORS
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?
what happens when series resonance occurs?
Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.
witch pump used in wtp
Why magnetic flux produces an induced current?? what is the detailed procedure ?? ans plz
any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.
What is transmittance?
Write masons gain formula.
