9903-129

About the 9903-129

The 9903-129 model of Woodward Generator Loading Control units are outfitted for nuclear-based applications when connected to an acceptable generator system. This unit is designed to ensure that power is effectively converted into electric energy The exciter voltage and protective parameters are installed into this one compact device. The automatic voltage regulator in this unit is installed as optimal for several types of nuclear generators. The 9903-129 unit is designed to operate with two options of system connections. There is compatibility with an isolated power system, or a local power system, parallel to an infinite bus.

Each Load Sharing Controller calculates the output so it can either raise or lower its generator output by accompanying the line voltage to its load signal voltage. The load signal voltage of the paralleling lines is the average voltage of all controls connected by the paralleling lines. Which makes the 9903-129’s load signal voltage equal to that of the paralleling lines and maintains the desired bus load.

The isolated system is only able to connect one set of load sharing and speed control to the unit, while the local power system is able to handle up to 15 sets. When connected to either system, the 9903-129 is able to process soft loading and unloading. AX Control Inc. is able to cover our inventory of Woodward devices with our own comprehensive warranty.