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Monday, July 9, 2012

Tripping of Customer 69kV Line ( July 5, 2012 at 1934H )

Below is my root cause analysis (RCA) for the tripping of our 69kV Line. Since I could not speak for the Test and maintenance section-Relay Group, I presented the root cause using simple calculation and analysis. Please leave comments below for the improvement of this RCA.

Thursday, March 8, 2012

Root Cause Analysis: Oil Trace at Phase B of 115kV Current Transformer

I. BACKGROUND OF THE PROBLEM:


      February 28, 2011, 1705H- The Senior Engineer on-duty , observed the oil trace on the head of phase B of 115kV current transformer while doing his daily routine inspection.