Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

why transformer ratings in kva?

Answer Posted / ankaraju.k

At the designing of transformer you can not predict which
type of load is placed on thatone i.e; the power factor is
unknown.under no load conditions thhe transformer losses is
depend on nearly sqare of voltage.under load condition the
losses depends on sqare of current.So overall losses in
transformer is depends on voltage and current only,so yhe
rating is inKVA

Is This Answer Correct ?    74 Yes 24 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

1604


(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1866


Define open loop control system.

1109


What happens when ac supply is given as excitation voltage instead of dc supply

3806


What is mean by STUB protection?

2065


What is meant by coupling capacitor?

1073


The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

2084


What is the fault or needs to be done when frequency in ac drives is not changing?

1661


is the value of inductance depends upon the evalue of thitha in doubly excited machine?

1882


Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

2102


Difference between earthing & grounding.?

2168


What are the different types of transformers?

1163


What was your role in the silicon evaluation/product ramp? What tools did you use?

1954


what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.

3240


How to select transmission line type (i.e. 11kv or 33kv) for new established industries

2034