what will happen if dc motor given ac supply
- 11 Answers
- 37783 Views
- Mahaveer, I also Faced
- E-Mail Answers
Answer Posted / parth belani
It will run. heating will take place which will damage the
motor if it is given AC supply for longer duration.
when AC supply is given to DC motor, the direction of the
magnetic field as well as the direction of the current in
the armature will be reversed in the second half of the AC
cycle. so, the direction of the torque will remain the same
in both the halves of the AC cycle. and motor will run.
| Is This Answer Correct ? | 29 Yes | 12 No |
Post New Answer View All Answers
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
please send me previous year questions of jspl through which i could prepare myself for the test.
how to calculate the no load current in transformer?
which connection is safer series or parallel?usually which connection we prefer at home?
The shot circuit in any winding of transformer result? Explain
Pl. give me checklist for installation & commissioning of machine tool.
what exactly commisioning work does in electrical site work... LT side?..
write a program that prints prime numbers from 1-20 in digonal form
why we have and use 3 phase not 2 or 4 or other in power system?
what is POTT and PUTT explain?
can we find the inductance of a induction motor?
how to calculate fault level?
Explain how you intend to work under pressure to meet up with deadline target?
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
What is the current carrying capacity of 35sq.mm flexible cable?
