What happens if a three phase induction motor is suddenly
single-phased while running? Which type of winding
connection will be affected?
- 22 Answers
- 66090 Views
- B4S Solutions, DRDO, FACT, SL Electricals, I also Faced
- E-Mail Answers
Answer Posted / stefan
#4
Usually when talking about "single-phased" motor, it means
that two of three phases are connected. In these cases, the
motor will slow down, and the phase currents for the
remaining phases will be increased. I don't know how much. I
am also not sure if the overload device would cut-off the
motor from power supply. Unless problem is not noticed, the
motor will most likely burn. When the motor is opened, you
should be able to see that 2 of the 3 phase windings are
black, and one is good looking (if motor is Y-connected)
| Is This Answer Correct ? | 16 Yes | 13 No |
Post New Answer View All Answers
Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?
What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?
what happens to the supply voltage if there is any change in frequency?
What is slope...? Explain slope 1 and slope 2...?
why co incidence factor considered in transformer sizing?
what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?
What is FM200 Gas??Applications........
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
what is droop control?
How may I enrol or get admission to your program?
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
whit is 33kv power 300*300 cable full current with formula
how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?
Mention the disadvantages of low power factor? How can it be improved?
Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response
