GE 745 - Page 207

CHAPTER 5: SETPOINTS S6 TESTING
745 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 5–111
• W1(W3) PHASE A(C) CURRENT MAGNITUDE: Enter the winding 1(3) phase A(C) current
magnitude (in terms of the winding full load current) while in fault mode.
• W1(3) PHASE A(C) CURRENT ANGLE: Enter the winding 1(3) phase A(C) current angle
(with respect to the winding 1 phase A current phasor) while in fault mode. Note that
the winding 1 phase A current angle cannot be edited and is used as a reference for
the other phase angles.
• W1(3) GROUND CURRENT MAGNITUDE: Enter the winding 1(3) ground current
magnitude (in terms of the winding FLC) while in fault mode. Note that ground refers
to the measured CT current in the connection between transformer neutral and
ground. As such, this message only appears for wye or zig-zag connected windings.
• W1(3) GROUND CURRENT ANGLE: Enter the winding 1(3) ground current angle (with
respect to the winding 1 phase A current phasor). This message only appears for wye
or zig-zag connected windings.
MESSAGE
W2 PHASE C CURRENT
MAGNITUDE: 1.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W2 PHASE C CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
W2 GROUND CURRENT
MAGNITUDE: 0.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W2 GROUND CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
W3 PHASE A CURRENT
MAGNITUDE: 1.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W3 PHASE A CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
W3 PHASE B CURRENT
MAGNITUDE: 1.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W3 PHASE B CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
W3 PHASE C CURRENT
MAGNITUDE: 1.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W3 PHASE C CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
W3 GROUND CURRENT
MAGNITUDE: 0.0 x CT
Range: 0.0 to 40.0 x CT in steps of 0.1
MESSAGE
W3 GROUND CURRENT
ANGLE: 0°
Range: 0 to 359° in steps of 1
MESSAGE
VOLTAGE INPUT
MAGNITUDE: 1.0 x VT
Range: 0.0 to 2.0 x VT in steps of 0.1
MESSAGE
VOLTAGE INPUT
ANGLE: 0° Lag
Range: 0 to 359° Lag in steps of 1
MESSAGE
FREQUENCY:
60.00 Hz
Range: 45.00 to 60.00 Hz in steps of
0.01