GE 889 - Currents

6–8 889 GENERATOR PROTECTION SYSTEM – INSTRUCTION MANUAL
IMPEDANCE CHAPTER 6: METERING
Impedance
Positive Sequence Impedance
The positive sequence impedance is shown here. The ohm values are presented in
secondary ohms. Positive sequence impedance 1 is calculated using 3-phase J1 Currents
and 3-phase J2 Voltages. Positive sequence impedance 2 is calculated using 3-phase K1
Currents and 3-phase J2 Voltages.
Path: Metering > Impedance > Positive Impedance 1 (X)
Z1 Resistance
Range: 0.00 to 6553.50 ohms in steps of 0.01
Z1 Reactance
Range: 0.00 to 6553.50 ohms in steps of 0.01
Z1 Magnitude
Range: 0.00 to 6553.50 ohms in steps of 0.01
Z1 Angle
Range: -359.9° to 359.9° in steps of 0.1
Currents
NOTE
NOTE:
The number of Currents supported is order code dependent.
Path: Metering > CT Bank 1-J1 (CT Bank 2-K1)
Phase A (Ia)
Range: 0.000 to 12000.000 A
Phase B (Ib)
Range: 0.000 to 12000.000 A
Phase C (Ic)
Range: 0.000 to 12000.000 A
Ground (Ig)
Range: 0.000 to 12000.000 A
Neutral (In)
Range: 0.000 to 12000.000 A
Phase A (Ia RMS)
Range: 0.000 to 12000.000 A
Phase B (Ib RMS)
Range: 0.000 to 12000.000 A
Phase C (Ic RMS)
Range: 0.000 to 12000.000 A
Ground (Ig RMS)
Range: 0.000 to 12000.000 A