GE 845 - Page 81

CHAPTER 3: INTERFACES FRONT CONTROL PANEL INTERFACE
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 3–7
The transformer status is indicated in the top right of the display.
The parameters displayed in the Front panel screen example are as follows for a 2-
Winding Transformer with VT:
The parameters displayed in the Front panel screen example are as follows for a 2-
Winding Transformer without VT:
The parameters displayed in the Front panel screen example are as follows for 3-Winding
Transformer:
Parameter Input for the value
W1 Ia Metering\ CT Bank 1 -J1\ J1 Ia
W1 Ib Metering\ CT Bank 1 -J1\ J1 Ib
W1 Ic Metering\ CT Bank 1 -J1\ J1 Ic
W2 Ia Metering\ CT Bank 2 -K1\ K1 Ia
W2 Ib Metering\ CT Bank 2 -K1\ K1 Ib
W2 Ic Metering\ CT Bank 2 -K1\ K1 Ic
P: Metering\ Power 1\ Pwr1 Real
Q: Metering\ Power 1\ Pwr1 Reactive
PF Metering\ Power 1\ Pwr1 PF
Parameter Input for the value
W1 Ia Metering\ CT Bank 2 -K1\ K1 Ia
W1 Ib Metering\ CT Bank 2 -K1\ K1 Ib
W1 Ic Metering\ CT Bank 2 -K1\ K1 Ic
W2 Ia Metering\ CT Bank 3 -K2\ K2 Ia
W2 Ib Metering\ CT Bank 3 -K2\ K2 Ib
W2 Ic Metering\ CT Bank 3 -K2\ K2 Ic
P: Metering\ Power 1\ Pwr1 Real
Q: Metering\ Power 1\ Pwr1 Reactive
PF Metering\ Power 1\ Pwr1 PF
Parameter Input for the value
W1 Ia Metering\ CT Bank 1 -J1\ J1 Ia
W1 Ib Metering\ CT Bank 1 -J1\ J1 Ib
W1 Ic Metering\ CT Bank 1 -J1\ J1 Ic
W2 Ia Metering\ CT Bank 2 -K1\ K1 Ia
W2 Ib Metering\ CT Bank 2 -K1\ K1 Ib
W2 Ic Metering\ CT Bank 2 -K1\ K1 Ic
W3 Ia Metering\ CT Bank 3 -K2\ K2 Ia
W3 Ib Metering\ CT Bank 3 -K2\ K2 Ib
W3 Ic Metering\ CT Bank 3 -K2\ K2 Ic
SLD Breaker symbol Color Transformer Status
Color Scheme
Open
Color
Close
Color
Not
Configured
Unknown Disconnected De-Energized Energized
Not
Configured
Red (Open) Red Green Orange
Green (Open) Green Red Orange