Dga Models - GE 845 Instruction Manual

CHAPTER 8: TRANSFORMER M&D

DGA Models

845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
The Data correlation model in this section is a customized trend chart where the user can
select the required parameter trends to display.
DGA models consist of the standard Duval Triangle and Gas Ratios model which is
computed based on the latest 50 DGA data samples. The Key Gas model is computed
based on the latest DGA data.
MODELS
8–7