How to run 1ph motor(230 VOLTS its full load amps is 4.5
ampa))with 480 volts main(we didn hav neutral)Thn we go for
step down transformer.Our load 10 amps,so we conisder this
amps in primary are secondary side



How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neu..

Answer / h r jadhav

when line voltage 480 is used across the primary of step
down trf having secondary is 230 volts then 1 phase motor
will load same current to lv side however it will load the
primary with respect to tf ratio. so if u have tf rated 10
amp for primary it is welland good.and if it is for
secondary it is well.

Is This Answer Correct ?    1 Yes 3 No

Post New Answer

More Electrical Engineering Interview Questions

what mean ohm

1 Answers   Shoba Devlopers,


what are the types of transformers

59 Answers  


why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  


how to calculate neutral current in three phase four wire system

1 Answers   Auto Meters,


How to calculate earth wire load by formula

0 Answers   Caparo,






what is the safety of ACB & VCB and how can this work and how can the service the ACB & VCB parts name with picture

21 Answers   ABB, ACB, Bharti, Claris Lifesciences, Honda, L&T, RotoPower, Sterling Wilson, Wipro,


How will you Physically differentiate A.C and D.C motor?

10 Answers   BSNL, Polycab,


voltage at generation stage is usually- ? a.11kv b.33kv c.66kv d.220kv

12 Answers  


how to calculate short ckt current of trafo. ex.3-ph 3MVA trfo. 11/440, impdence voltage=7.25%

1 Answers  


When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

2 Answers  


tell me about eletrical contractor

0 Answers   TATA,


either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4452)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • 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)