GE IS200DAMAG1BBB Channel output card

An auxiliary contact on the generator breaker connected to the discrete input is used to select speed and load control operation. When the input to the 52G BREAKER contact is open, the control is in droop speed control. When the 52G BREAKER contact is closed, the control is in isochronous load control or droop control.

The Load sensor computes the load 

carried by each phase of the generator. The current load on each phase is multiplied by the cosine of the phase difference between the current and the voltage and the three phases are added to determine the total load. The output of the load amplifier is adjusted by the load gain set point. By setting the load gain voltage on each unit to the same level at full load, proportional load sharing is achieved. Regardless of differences in generator set capacities in the system, each generator set is loaded to the same percentage of its capacity. A final adjustment of the individual load gain adjustment will compensate for minor differences in the generator sets.

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