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 we are used D.c. voltage in L.T.side or controling
side.we can use UPS also ,in place d.c. voltage

Answer Posted / dinesh kumar sharma

dc voltage is necessary for l.t pannels was because dc is
free from harmonics as well as smooth, in dc voltage no
variations are there so controlling becomes easier.
no we can not use ups takes ac to charge battery store in
dc and than when ever supply cut off than battery going to
discharge voltage is converted into dc to ac one of the
example in case of computer
and also ups can be used for smaller duration so why we
use UPS

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can any body tell me the different types of LT cables & their application.

2100


why are u join ntpc

2149


1.What will be stored in online ups EPROM IC?

2046


1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

2272


1.what is the funtion of chiller primary & scondary pumps. 2.what is the use of distribution lines & Types. 3.what is the use the thermal power stations & how much capacity.

1973


Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.

2130


How to test lightning Arrester?

896


Any one can explaination about calibration with rotating sub standards?

2066


If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.

2093


Consider three heater bank connected in 3 phase star with neutral.Each heater bank connected in each phase.So each phase get 230 volts supply.my question is,during balance condition, current flow in neutral or Not

1633


we have 15 ampere variyac but we want 30 ampere variyac what we do

1923


What are the difference between normal application Transformer and Solar application Transformer?

1649


two phases with neutral supply can be taken in 3C X 10 sq.mm cable .

1418


can we synchronize star system generators with delta system generators?

2049


what is the relationship between current&voltage in practical purpose ?

5018