GE T60

5-118 T60 Transformer Protection System GE Multilin
5.4 SYSTEM SETUP 5 SETTINGS
5
3. Configure source n (source 2 for this example) as the current from CTY in Winding 1 in the SYSTEM SETUP  SIGNAL
SOURCES  SOURCE 1(4) settings menu.
SOURCE 2 NAME: “WDG 1Y”
SOURCE 2 PHASE CT: “F5”
SOURCE 2 GROUND CT: “None”
SOURCE 2 PHASE VT: “None”
SOURCE 2 AUX VT: “None”
4. Configure source n (source 3 for this example) to be used as the current in Winding 2 in the SYSTEM SETUP  SIGNAL
SOURCES  SOURCE 1(4) settings menu.
SOURCE 3 NAME: “WDG 2"
SOURCE 3 PHASE CT: “M1”
SOURCE 3 GROUND CT: “M1”
SOURCE 3 PHASE VT: “None”
SOURCE 3 AUX VT: “None”
5. Configure the source setting of the transformer windings in the SYSTEM SETUP  TRANSFORMER  WINDING n set-
tings menu.
WINDING 1 SOURCE: “WDG 1X”
WINDING 2 SOURCE: “WDG 1Y”
WINDING 3 SOURCE: “WDG 2"
SETUP METHOD B (ALTERNATE)
This approach adds the current from each phase of the CT1 and CT2 together to represent the total winding 1 current. The
procedure is shown below.
1. Enter the settings for each set of CTs in the
SYSTEM SETUP  AC INPUTS  CURRENT BANK settings menu, as shown for
Method A above.
2. Configure Source n (Source 1 for this example) to be used as the summed current in Winding 1 in the SYSTEM SETUP
 SIGNAL SOURCES  SOURCE n settings menu.
SOURCE 1 NAME: “WDG 1"
SOURCE 1 PHASE CT: “F1 + F5”
SOURCE 1 GROUND CT: “None”
SOURCE 1 PHASE VT: “None”
SOURCE 1 AUX VT: “None”
3. Configure Source n (Source 2 for this example) to be used as the Winding 2 current in the SYSTEM SETUP  SIGNAL
SOURCES  SOURCE n settings menu.
SOURCE 2 NAME: “WDG 2"
SOURCE 2 PHASE CT: “M1”
SOURCE 2 GROUND CT: “M1”
SOURCE 2 PHASE VT: “None”
SOURCE 2 AUX VT: “None”