Interested to Buy Any Domain ? << Click Here >> for more details...
What happens if a three phase induction motor is suddenly
single-phased while running? Which type of winding
connection will be affected?
- 22 Answers
- 71073 Views
- B4S Solutions, DRDO, FACT, SL Electricals, I also Faced
- E-Mail Answers
Answer Posted / raj mohan singh
The following are the
effects of single
phasing:
1) Due to single phasing
the current in
the remaining two phases
increases
and it is approximately
2.4 times the
normal current value.
2) Single Phasing reduces
the speed of
the motor.
3) The motor becomes noisy
and
starts vibrating due to
uneven torque
produced in the motor.
4) If the motor is arranged
for
standby and automatic
starting then
the motor will not start,
and if the
overload relay provided
fails to
function then the motor may
burn.
5) The windings will melt
due to
overheating and can give a
fatal shock
to the personnel.
6) It may cause overloading
of the
generator.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
How to calculate or formula to calculate rhe power in 2 phase system ??
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.
How many types of colling system it trformers?
How we can determine short circuiting current any plant and for example a plant which power generation is 415 volts and plant load is 500 kw.
What is resistance reading of earth copper rod with grid and without grid?
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
how calculate gd2 of ht motors
We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.
Any Electrical Engineering jobs?Please refer for interviews. Thank you
wat system call?
defination of transistor controlled series capacitor
What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?
i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.
If we connect a motor and generator together (I mean that the generator gives the motor electricity and the motor gives the generator movement) regardless the losses. Will the generator still generate and the motor still move?
