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...

what is difference between AC VVVF drive & Dc VVVF drive
explain their working principle?

Answer Posted / haider imam

vvvf is genaraly use in ac drive because only change
frequancy in ac drive in dc drive there is no any
ferequancy so how regulate this.

Is This Answer Correct ?    1 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

2057


I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1968


what is the minimum clearance between a 11KV 150KVAR capacitor cell and series reactor.can a series reactor can be mounted in the same structure of the capacitor cells structure

2222


What is synchro?

1177


why you don not show protection and type of isolation in key single line diagram?

1985


What is ideal IR values for ground and neutral.

1760


I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

1875


what is the purpose that we use PLC system in power system

5092


What is the practical way to calculate the cable size for known ampere load?

1441


Define availability (operational)?

1162


a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

1546


how cables go in and come out for distribution from the feeder pillar box?

2092


how to extend relay operating timing in 24V dc relay card (without using Timer )

2007


How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.

1894


A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N

2977