WHAT IS THE SPECIFICATIONS CONSIDERED DURING DESIGN FOR THE
OVER CURRENT RELAY?
Answer Posted / appurao. s
For the Over Current Relay, (Mostly CT operated)it will be considered the Ct secondary current either 1A or 5A depends on the system design. Mostly today's digital relays are having the option to select between the range.
Also the time for interrupting the flow of current when the over current phenomena arises. Time setting will be range bound, so that the user can decide.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?
what are the differant std sizes of cable trenches?
what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????
can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?
What is the difference between indoor and outdoor transformer
How to select the proper VSD to operate high inertial load
What is meant by time harmonics and space harmonics?
briefly explain the main blocks found in a microprocessor based system
For a stable system, where should the poles of a system be in a root loci plot?
to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power
Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?
what are the installation procedure of high voltage power transformer,CT,CB&PT?
Why back emf used for a dc motor? Highlight its significance.
What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
what is the use of permanent magnet generator in exciter