WOODWARD 9907-027 Load Sharing Module

The Woodward 9907-027, also cataloged as the 9907-027 Load Sharing Module, operates as a dedicated hardware component for proportional load distribution and frequency synchronization among parallel-connected engine-generator sets. Configured as a panel-mounted controller, this speed regulator subsystem monitors active electrical power variables and delivers direct physical/electrical execution by regulating proportional bias outputs to external governor systems.

Hardware Specifications

Actuator Loop Feedback Response and Load Optimization

The 9907-027 regulates auxiliary bias networks to manage actuator loop feedback response parameters across proportional governors, correcting engine fuel rack positions to match system load demands. By measuring real-time phase current vectors and busbar voltage levels, the internal analog processing circuit computes precise active kilowatt levels and cross-current errors across the parallel control lines. The hardware layout uses dedicated pots for droop and load gain tuning to balance transient load changes smoothly and maintain frequency stability, keeping the generator loops aligned without data lag or clock errors on the main processing bus.

Frequently Asked Questions

Q: What distinct operational roles do the droop and load gain adjustments perform on the 9907-027 module faceplate?

A: The droop control dictates the proportional drop in frequency required to achieve stable autonomous load sharing without governor hunting. The load gain potentiometer adjusts the sensitivity of the internal load sensor, scaling the output bias voltage to ensure balanced kilowatt distribution across dissimilar generator sets.

Q: Can the 115-230 VAC power terminals be disconnected from the screw clamps while the generator is running on the main busbar?

A: No. Disconnecting the reference or auxiliary AC lines under load instantly removes the voltage sensing input, causing the internal logic to read a zero-load state. This leads to immediate actuator loop saturation, forcing the governor to over-fuel the engine in an unstable runaway condition.