Woodward 2301A Speed Control & Load Sharing

The 2301A provides control in either isochronous or droop mode. The isochronous mode is used for constant prime mover speed with: · Single-prime-mover operation; · Two or more prime movers controlled by Woodward load sharing control systems on an isolated bus; · Base loading against an infinite bus with the load controlled by an Automatic Power Transfer and Load ( APTL) Control, an Import/ Export Control, a Generator Loading Control, a Process Control, or another load-controlling accessory. The droop mode is used for speed control as a function of load with: · Single-prime-mover operation on an infinite bus or · Parallel operation of two or more prime movers. The following is an example of the typical hardware needed for the 2301A system controlling a single prime-mover and generator: · A 2301A electronic control · An external 20 to 40 Vdc power source for low-voltage models; 90 to 150 Vdc or 88 to 132 Vac for high-voltage models · A proportional actuator to position the fuel-metering device, and · Current and potential transformers for measuring the load carried by the generator. Applications The 2301A 9905/ 9907 series electronic controls have switch-selectable speed ranges. Any of these control models can be set to operate within one of the following rated speed ranges: · 500 to 1500 Hz · 1000 to 3000 Hz · 2000 to 6000 Hz · 4000 to 12 000 Hz