Interested to Buy Any Domain ? << Click Here >> for more details...
can i know how to design overcurrent setting and earth
fault for 11kv & o.433kv system assuming tx 1000kva.
- 2 Answers
- 6068 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / prakash.
First selected for ct ratio in HT panel.1000kva transformer full load current in primary 52.5amps.so ct ratio in 60amps(60/5).
Now relay setting for over current 55amps.
And earth fault setting 0.5amps in ct secondary amps..
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / k.prakashchandra
Normally EFR is set at 20% 0f OCR setting.
| Is This Answer Correct ? | 2 Yes | 0 No |
minimum ohm for lighting minimum ohm for Earthing
How much Fault current can be contributed by a motor?
If you see the HRC fuse name plate. Its shown ampere rating shown which is in many KA (like 80KA and so on). any body explain what is meaning of this value?
how to measure earth pit resistance
7 Answers BARC, BYD Electronic, Construction,
why can't we provide dc supply to a transformer?
why is a avtomatic voltage regulator used for?
What should be value of Circuit breaker operating time and tripping time?
What is EOL?
Where servomechanism is used?
Why let through energy not considered for ACB breaker while cable sizing?
Which standard we are following earthing resistance test
How to calculate multiplication factor in kva example 500kva ans pls ?
-
Civil Engineering (5086) - Mechanical Engineering (4456)
- Electrical Engineering (16639)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
