Westinghouse De-ion Type 150-DH-1000 Interrupting Time

[wbd]

Hello,

Does anyone have any documentation on the interrupting time for the above breaker, circa 168 vintage? Neither the breaker nameplate nor the manual has any interrupting time listed. Perhaps someone may have other documentation or possibly some test reports showing the interrupt time.

Thank you

 

[dpc]

What voltage class is this?

 

[dpc]

It's in Conrad's book - Table I-13a. Listed as 8 cycles. It's also in the EasyPower library. This is a 15 kV breaker.

 

[wbd]

dpc - thank you. I do know it is in the EasyPower library and have been looking for Westinghouse documents showing the time as a client is questioning it because from other work a 5 cycle was used. EasyPower sent me a Westinghouse 1941 document that has some DH bkrs but not the exact one.

I also see it in Conrad's book.

 

[dpc]

I think everything from Westinghouse of that vintage is going to be 8 cycles, but I'm not sure.