Breaker DLRO testing

[rlundsrud]

Seems rather high if these are milliOhms. That would be a 92V drop on B phase. Maybe microOhms (uOhms)?

It seems to me that you asked for the opinion of an expert and you do not like it. I think you would need to pay another expert to see if they will tell you what you want to hear.

I am not sure that a 50% variation phase to phase is bad or not but am inclined to believe the manufacturer when they say it is.

ETA: I found this.

http://ecmweb.com/test-amp-measurement/dc-testing-circuit-breakers

How did you get the 92 volts. I thought the contact test was a dc test and I can't get that value (I know you used the milliohms value). I appreciate any explanation.