a 3 phase motor was running with delta connected, suddenly
one phase winding got burnt off, what will be the effect ?
Answer Posted / rvg
delta connected winding, one winding burnt off means, its
open circuited. So the motor will work as open delta system
and run normaly with non uniform torque.
The max. load that can carry will be reduced to 57.7% of
full load.
If the motor is connected through a phase faliure relay,
the relay will trip the total ckt.
Is This Answer Correct ? | 111 Yes | 3 No |
Post New Answer View All Answers
how to design coil turns ?
DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS
How line capacitance & line inductance varies with increase in height tower.
Define branch?
why dc is used in control circuit for mv & hv switchgear instead of ac
I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??
what is advertised hop count
new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection
What would be the size of wire used for 2 Ton of window A.C?
why steady state stability limit is greater than transient stability limit ? How it can be explained ?
RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?
how we can calculate chiller required ampear?
How to calculate LT XLPE CABLE for 11 kv / 433 v , 1000 kva oil type transformer system?
What should be the height of basement according to NBCC code?
Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp