why 3 phase motors are preferable over single phase motors ?
Answer Posted / simon
1.Self starting capacity.
2.Due to 3 phase three coils r located at 120 degree elt.
3.The Phase V of 3 phase is 440.
4.The P.f of 3 Phase is nearly 0.8 to 0.9.Which is high as compared to 1 Phase.
Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
how to calculate the breaking capacity of different breakers.
What is the types of HT motor testing
What is the complete procedure of erection of electrical panel in industry
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..
Phase control and integral control are used for?
Define thermal resistance in the context of power amplifier.
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
why we use copper earthing for neutral while for body GI.
What are diffrent type of road taxes?
how to setting Load amps tripping time and extra settings for load Transformer protection relay with RMU panel using C&S model relay..?
Starting current of a 10 HP induction Motor is ______ time’s full load current.
Starting Time of LT & HT Motor
Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both
Why compensation is necessary in feedback control system?