Thanx, waross, I'll try to do it..
alehman, I've replaced 3 CDVRs, but at the ending it was the same result. Yeah it's a PMG exciter.. Metering with megohmmeter I have found that any insulation in main field and in exiter field was correct. Metering with multimeter I the test of main field...
Yeah, waross, I've allready 3 times have checked all the things you are talking about... They were correct by the manuals of Caterpillar.. Itsmoked: it was working for 1 year untill this problem has began.
I have realy big problem with SR4B generator.. The problem is that CDVR can't work properly well. It shows an alarm "Field overcurrent". Has anyone experience??? I was trying to find help at local distributor, but it was nothing..
