give 5 differences between relay and contactor



give 5 differences between relay and contactor..

Answer / sk reddy

Contactor used in 3 phase.Relay used in single phase.Contactor will be drivern by relay

Is This Answer Correct ?    0 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

what is the similarity and difference between ups and inverter?

4 Answers   GMR,


what is conductor constant of raccun conductor

0 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited,


What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are answering, pls send mail ids also.

1 Answers  


why the pf of semiconductor device is improved the electrical devices

0 Answers  


how much current will take for 1kw power. and what is the eqoutiion which is connecting with kw and A.

2 Answers  






what are the changes made in induction motor so that it act as induction generator

4 Answers   APPSC,


why is power supplied in 3 phase only? why not in 2 or 4 phases?

11 Answers  


Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

0 Answers  


single phase power supply give to separate one steel coup with water, what reaction create

0 Answers   Turbo,


How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs

1 Answers  


WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 Answers  


distribution transformer de-rating formula on over limit iron losses  

0 Answers   IESCO,


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)