Supose we have one 220v A.C fan.if we provide 220v D.C what
will be happen?
Answer Posted / a.kossay
IF THIS MOTOR IS A UNIVERSAL MOTOR SO IT CAN WORK BUT THE
DC VOLTAGE LIMIT MUST BE DECREASED TO VALUE THAT WILL
SUPPLY THE POWER RATINGS OF THE AC POWER SUPPLY, IF THE
MOTOR IS INDUCTION MOTOR IT WILL NEVER WORK BECAUSE THE DC
SOURCE WILL NEVER GENERATE A ROTATING FIELD THAT INDUCTION
MOTOR NEEDS TO ROTATE ITS ROTOR
| Is This Answer Correct ? | 17 Yes | 1 No |
Post New Answer View All Answers
What is the difference in calculating size of AC cables compared to calculating size of DC Cables? Usually DC Cables are larger than AC Cables although they have the same ampacity. Why is it?
What is essential to prove safe isolation of electrical circuit?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
How to calculate capacitor bank value to maintain unity power factor with some suitable example?
mention hazard experienced during installation
Iwould like to know barc interview questions
What happen when change order of CT in GIS feeder?
Why different Pressure switch used in marine boiler water circulation system
pls tell us AC plant are how do work and parts name with picture
What is the purpose of stand by earth fault protection for transformer ?
I'm looking for a mnaual set for a Teradyne J750. Softcopy would be preferred but I'll take what I can get.
What is the difference between a 3 winding and 2 winding Potential Transformer
I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2
How wire size can define in electrical wiring? What is the ratio?
Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??