is it possible to run a dc motor on ac supply with good performance.....?
Answer Posted / marsad
Dc motor cannot be run at good performance when powered by AC supply.. this will result in heavy core loss...
if you really wanted to use both ac or dc suppy for working a motor. you should prefer a universal motor. which is actually an AC series motor with some modifications.. .
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the working principle of servo motor? And explain it.
bus bar design conditions and sizing pls tell me quickly
What are the advantages & disadvantages of a group electrive drive?
when we decide to use soft starter drive or vfd drive in mcc to operate apump?
1 Ton is equal to how many watts?
if we give 60 hz single phase supply to the transformer used in europe , than what will happen
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.
What is the formula to calculate the size of Aluminium and copper cable?
EXPLAIN THE TRANSFORMER MAINTENANCE?
. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?
how to measure the current by compact digital equipment with dislay which fit inside any equipment
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
Pl.brief me any electrical major fault you have rectified.
what is your majour contributions in your present job