Follow Our FB Page << >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...

why ct mensioned 0.5/5p20 plese any reply to me

Answers were Sorted based on User's Feedback

why ct mensioned 0.5/5p20 plese any reply to me..

Answer / aju m paulose

0.1, 0.2, 0.5, 1, 3 are Accuracy class
They are used for metering purposes

5P10, 5P15, 5P20 are used for metering and protection purposes

5 indicates Composite error in % and 'P' for protection and 10 means accuracy limit factor...

i.e the CT will have 5% error if the current under measurement is 10 times the normal value

Is This Answer Correct ?    19 Yes 2 No

why ct mensioned 0.5/5p20 plese any reply to me..

Answer / balakrishna

ct has 3

here 0.2, 0.5,1 used for metering classes
5p10,5p20 used for protection like overcurrent & earth
fault purpose

ps class used for the differential/distance protection

Is This Answer Correct ?    6 Yes 2 No

Post New Answer

More Electrical Engineering Interview Questions

why high speed tripping relay is used in protection circuit why not normal relay

0 Answers  

what is the definition of a power transformer ?

4 Answers  

How can calculat the lode of transformer?

2 Answers   Maruti Suzuki,

please describe the Transformer setting, Motor setting, I/C setting, Tie setting

0 Answers  

which winding aply in an alternator?

3 Answers  

hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

0 Answers  

why the electrical plug point pin(earth) size in max

1 Answers   Autoneum Nittoku, Bajaj,

What are the functions of different Parts of Alternator?

2 Answers  

why swinburnes test cannot be performed on series machines?explain

0 Answers  

What are the advantages of the three-phase motor over single phase motor?

0 Answers  

what is difference between ELCB, RCBO & MCB

2 Answers  

different aspects of voltage stability

0 Answers  

  • Civil Engineering Interview Questions Civil Engineering (5081)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4448)
  • Electrical Engineering Interview Questions Electrical Engineering (16620)
  • Electronics Communications Interview Questions Electronics Communications (3915)
  • Chemical Engineering Interview Questions Chemical Engineering (1093)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (258)
  • Instrumentation Interview Questions Instrumentation (2994)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (123)
  • Power Plant Engineering Interview Questions Power Plant Engineering (171)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)