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Manual 26174
EGCP-2 Engine Generator Control Package
Woodward
109
CT Phase A, B and C Offset
Calibrates CT Phase A, B, or C input sensing of EGCP-2 at zero current.
Only calibrate when generator is operating with no load.
Calibrate within ±0.3 of 0.0 A.
Measure actual generator currents with clamp on ammeter, or panel
ammeter. Verify 0 A on the selected phase input.
Calibrate selected phase CT reading in the calibration window.
CT Phase A Scale
Calibrates CT Phase A
o
Do NOT calibrate if generator load is under 50% of Rated.
o
Factory calibration will be within 1%.
Load generator to above 50% of Rated load
Measure actual generator currents with clamp on ammeter or panel
ammeter.
Adjust until monitored current equals measured current.
Calibrating the Phase A CT for 70 A
CT Phase B Scale
Calibrates CT Phase B
o
Do NOT calibrate if generator load is under 50% of Rated.
o
Factory calibration will be within 1%.
Load generator to above 50% of Rated load
Measure actual generator currents with clamp on ammeter or panel
ammeter.
Adjust until monitored current equals measured current.
CT Phase C Scale
Calibrates CT Phase C
o
Do NOT calibrate if generator load is under 50% of Rated.
o
Factory calibration will be within 1%.
Load generator to above 50% of Rated load
Measure actual generator currents with clamp on ammeter or panel
ammeter.
Adjust until monitored current equals measured current.