Current Limiting Reactor
Current Limiting Reactor
(OP)
I have two questions:
1. Where can I find the X/R ratio of a 3ph, 12.6 kV, 5%, 600A reactor?
2. I calculated the MVA rating of this reactor as follows:
1.73x12.6x600/1000=13.1 MVA. Is this correct?
Thanks,
kingi
1. Where can I find the X/R ratio of a 3ph, 12.6 kV, 5%, 600A reactor?
2. I calculated the MVA rating of this reactor as follows:
1.73x12.6x600/1000=13.1 MVA. Is this correct?
Thanks,
kingi






RE: Current Limiting Reactor
2. Yes
Mike
RE: Current Limiting Reactor
Thanks,
kingi
RE: Current Limiting Reactor
It's impossible to accurately speculate. The Q-factor (X/R) varies substantially with design and even within designs of the same manufacturer.
RE: Current Limiting Reactor
For a 13.1 MVA reactor, the range for X/R is on the order of 40 to 70.
RE: Current Limiting Reactor
kingi
RE: Current Limiting Reactor
It will still be quite a few watts of heat loss when you run the numbers out, since you're dealing with the square of the current.
RE: Current Limiting Reactor
I seriously question that table you reference based on conductor material as being accurate (of course 40-70 is a huge range). There are many different types of winding and conductor profile configurations for air-core reactors...and i say that as someone who works for a reactor configuration.
Just my $0.02 worth.
RE: Current Limiting Reactor
It's the same chart and equations that GE has referenced for years, I think.