what is the difference b/w single and three phase circuits?



what is the difference b/w single and three phase circuits?..

Answer / power team

* Power Consumption is less in case of Three Phase Circuit
(P= sqrt of 3 * Vph * Iph * PF)where as in single phase
circuit,power consumption is more(P= Vp * Ip *PF)

* Efficiency is much better in 3Ph circuit than 1Ph circuit

* Cost of transmission is high in 3Ph circuit

* Voltage regulation is better in 1Ph

* 3Ph circuits are widely used by Industrial HT consumers

Is This Answer Correct ?    7 Yes 2 No

Post New Answer

More Electrical Engineering Interview Questions

how we can check new PT ? without name plate.

1 Answers   Indo Power Projects,


how to calculate the change over time for star delta starter for different KW motor?

0 Answers  


how do i get electrical supervisor certificate in gujrat?

3 Answers   DGVCL Dakshin Gujarat Vij Company, Infosys, ONGC, Orient, Reliance,


How the electric train gets the supply of electricity? What is the return path of the current?

8 Answers   Siemens,


plz tell me the potential difference between phase and netrul

2 Answers   CGL,






How can we decide the fualt levels of sub-stations?

2 Answers   Bhel, Enercon, Prakash Industries,


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.

0 Answers  


IS RTCC AND OLTC REQUIRED FOR 500 KVA 11KV/433V TRANSFORMER FOR AN INDUSTRY?

7 Answers   IGCAR, TNEB Tamil Nadu Electricity Board,


What is the function of a capacitor in a ceiling fan?

2 Answers  


i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

0 Answers   TNEB Tamil Nadu Electricity Board,


What are the different lines and what are the different types of losses occur on them?

2 Answers  


2. What are the parameters of EHT sub-station?

0 Answers   APGenco,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)