Interested to Buy Any Domain ? << Click Here >> for more details...
how set earth fault over current in relay
- 5 Answers
- 18022 Views
- Jacobs, Reliance, I also Faced
- E-Mail Answers
Answer Posted / kiran sule
In any relay Set earth fault to minimum That means If Earth
fault range is 20 to 80 % of secondary current then set it
to 20% . In case of over current calculate rated current
and add 5%for relay & ct error and 5% to over load that
means set it to 110% to full load capacity.
If for 200/1 CT If full load current is 160 that mens 80%
to secondary current of Ct+10% relay CT error and Over load
that means relay ia seted to 180A interms of secondary at
0.9 a that means 90%
| Is This Answer Correct ? | 19 Yes | 2 No |
Post New Answer View All Answers
How to calculate Air conditioning capacity for a telecom BTS shelter?
Electrical Engineering
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?
what is breathing?
what is the affect of earth's magnetic field on the frequency used in aircraft???
How to calculate Ith (I thermal) for curent transformer
what is the difference between transformer,converter and transducer
How to check the Bushings of the transformer?
What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating
why we are not giving the zone 1 trip command to the master trip relay
1.what is the reason for transformer and lightning arrester blast in 33kv system
what parameters are should nessary for control technic dc drive(in rolling mills)?
state the working principle of incondenscent tube?
what is meant by rotating magnetic filed
what is the difference between ac motor and dc generator
