"L class" vs "C class" for CT

[tem1234]

Hi,

I try to understand what's the difference between a C800 and a 10L800 CT.

From what i understand, it's pretty much the same thing, considering 10% error on the C class.

I think the L class is from an old standard, ASA (american standard association), and the C class from a new standard IEEE.

So, is it normal to buy a new breaker in 2013 and to have L class CT in the bushing?

Thanks

 

[scottf]

The "L" class is used by CSA today. C800 and 10L800 are essentially the same thing.

For the "L" class in CSA, there also exists a 2.5L, which works the same way, just with an accuracy limit of 2.5% at 20 times Inom @ rated burden.

 

[tem1234]

Thanks scottf

I found the CSA standard that talk about that.