Page 385 - Practical Power System and Protective Relays Commissioning

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1 B 3 B 3 B 3 B 3 B 3 B 3 B 1 2 1 2 1 2 1 2

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indicators oil transformer’s (11)

temperature as same (500kVA)

check measurement for test test transformer measurement

operation winding resistance resistance test breakdown filtering oil Transformer resistance test resistance

changer and oil check group Transformer station check group

Tap Check Insulation Ratio Winding Vector Dielectric 220/11kV Auxiliary Insulation Ratio Vector Winding

11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 12 13 13.1 13.2 13.3 13.4