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 use dc motor instead of ac motor?

Answer Posted / sunil guru

EVEN NOW DC MOTORS ARE PROFFERED BECAUSE.....

1.HIGH STARTING TORQUE.

2.EASY CONTROL OF FIELD EXCITATION SO SPEED CAN BE
CONTROLLED

3.HIGH SPEED VARIATION IS POSSIBLE

4.BETTER STARTING AND BRAKING CHARACTERISTICS

used in lifts,hoists,cranes,traction systems........

Is This Answer Correct ?    28 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how we can calculate chiller required ampear?

1999


This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

2421


How to calculate no of EARTH PIT? Describe the formula as per IS standard?

3728


HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

1882


how to calculate the fault in substation

2340


can any one know is sbi interview based on merit or based on roll number

1937


Describe the test procedure to determine the vector group

2067


What's the difference between non break power supply and non break non short break power supply

1398


What is a feedback in control system?

1159


why the NGR (neutral grounding resistor) always OFF during DG off?

3425


why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

2131


what is meant by flywheel and its role in retardation test

2373


show the single line diagram of star delta starter with single phase preventer

4577


1.what is the reason for transformer and lightning arrester blast in 33kv system

3033


what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

2273