Current Tab

Use this tab to enter generator overcurrent settings, loss of excitation current settings, rotating diode fault settings, and the number of poles.

Parameters

Over-Current

Setpoint

This value establishes the threshold that the CGCM uses to recognize when a generator overcurrent condition exists. When the condition occurs, the CGCM starts timing toward a trip, based on the selected overcurrent curve and time dial. Valid values range from 10.00 to 320.00 % Rated I; the default value is 105.00 % Rated I.

Curve

This value establishes the time overcurrent characteristic curve that will be used by the overcurrent function of the CGCM. Valid values range from 1(default) to 17.

Time Dial

This value establishes the tripping time in relationship to the magnitude of the actual current applied to the CGCM. Valid values range from 0 to 9.9; the default value is 0.5.

Voltage Restraint

This value compares the monitored voltage with the fixed nominal voltage limit. When the voltage is between 100 percent and 25 percent of nominal voltage, the CGCM automatically lowers the selected time overcurrent pickup point proportionally. Valid values range from 0.0 (default) to 200.0 % Rated V.

OK

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Help

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