For the same power rating,which motor is bigger in size,AC or DC?
- 9 Answers
- 15697 Views
- Bhel, I also Faced
- E-Mail Answers
Answer Posted / rabisankar
For 1phase AC machine P=v*i*cos (thita).
For 1phase DC machine P=v*i.
now cos(thita)<=1.
so for same power rating ac machine must have larger i than dc.
so thick conductor is required,so its size is larger than dc
machine.
| Is This Answer Correct ? | 0 Yes | 8 No |
Post New Answer View All Answers
what is servo motor and how it works?
What is the difference between acs 550 & acs 850
how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable
What is meant by celling voltage & current in excitor ?
why dc is used in control circuits for MV & LV switchgeras instead of ac
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
When will you multiply and devide with derating factors to the actual value while sizing the cable?
why the value of k is more in shell typr transformers?
what is the difference b/w pvc cu conductor and cu breaded wire..?
What is an 86-P or an 86-A trip
sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.
What is a dc motor?
I need bhel previous year quetion papers for electrical engineering department.I searched but i could not find out
As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?
what is RNG in the DG synchronizing by PLC?
