General Information

Description

The 9905/9907 series of the Woodward 2301A controls load sharing and speedof generators driven by diesel or gasoline engines, or steam or gas turbines.

These power sources are referred to as "prime movers" throughout this manual.

The control is housed in a sheet-metal chassis and consists of a single printedcircuit board. All potentiometers are accessible from the front of the chassis.

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 controlsystems on an isolated bus;

•Base loading against an infinite bus with the load controlled by an AutomaticPower Transfer and Load (APTL) Control, an Import/Export Control, a GeneratorLoading Control, a Process Control, or another load-controlling accessory.

The following is an example of the typical hardware needed for the 2301Asystem 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 150Vdc 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 thegenerator.

Applications

The 2301A 9905/9907 series electronic controls have switch-selectable speedranges. Any of these control models can be set to operate within one of thefollowing rated speed ranges:

•500 to 1500 Hz

•1000 to 3000 Hz

•2000 to 6000 Hz

•4000 to 12 000 Hz

WOODWARD 2301A Low Voltage Load Sharing Speed Control 9905-020 REV-P

Woodward WIC12PE 81599989

Woodward 8290-180

Woodward smm40 ip44 1766-523 24vdc

Woodward 9907-205

Woodward SPM- 9907-028 Revision F

Woodward 150 9905-867

Woodward 9907-173

Woodward 5462-758/5462758

Woodward 9907-838

Woodward 8250 221JN Governor Attuatore 8250221JN

Woodward 8270-092 EG-A control

Woodward 9907-173

Woodward smm40 1766-535 24v