why most of the induction motors are delta connected?
Answer Posted / mukund apte. ( 91 9724397177
If we consider the following
(i) KW of Star motor & Delta motor are same.
(ii) Load on both motors are same.
(iii)rpm of both motors are same.
(iv)PF of both motors are same.
(v) both motors are working at same ambient temp.
(vi)And power supply is without hamonics.
THEN HEATING IN BOTH THE MOTORS WOULD BE EQUAL.
Note:- If power supply contains 3rd harmonics,then Delta connected motor would run hoter.
Practically this has been verified.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
As per the Anchor capstan motor specification, full load current is 200A. starting current is 1750 A and acceleration time is less than 8 seconds. Please guide for selection of cable size.
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?
Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com
Why the cores of large transformers build up of circular cross section?
if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?
what is the criteria for selecting fuse rating in 1phase, 2phase & 3phase welding sets?
What is s-domain and its significance?
how to calculate fault level?
what is control supply rating of a machine
What is the drawback of class b amplifier? How is this minimized?
how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps
What is lighting kitts.
What is the armature mmf in a D.C machine?
is it possible to turn on the single phase star delta on delay timer using 24 v dc ?