How to protect power transformer 630kVA
How to protect power transformer 630kVA
(OP)
Hi
I have a discussion with my colleagues regarding best protection performance for power transformers 630 kVA. According to their demands it should be executed by MV Fuses(lower price), but my personal opinion is rather different and I think that the wright choice is by circuit breaker and overcurrent-time protection.
I am kindly asking for your opinion!
I have a discussion with my colleagues regarding best protection performance for power transformers 630 kVA. According to their demands it should be executed by MV Fuses(lower price), but my personal opinion is rather different and I think that the wright choice is by circuit breaker and overcurrent-time protection.
I am kindly asking for your opinion!






RE: How to protect power transformer 630kVA
If you do go with breaker and relay, I'd recommend a numeric differential relay. That way you would have both overcurrent, on both sides of the relay, as well as differential.
RE: How to protect power transformer 630kVA