Description 9907-252 Woodward 2301A Load Sharing & Speed Control Product Dimensions： Product Description (Detailed Explanation) The Woodward 9907-252 is a specialized version of the 2301A family configured for High Voltage (HV) power supply and Forward Acting actuators. This analog controller is the industry standard for managing prime movers coupled to electric generators. Its primary function is to maintain a constant engine speed (isochronous) or a speed that varies with load (droop). When multiple generators are connected to a single bus, the 9907-252 ensures that each unit carries its proportional share of the total electrical load, preventing “current fights” and stabilizing the power grid. Product Parameters (Technical Specifications) Parameter Category Specification Power Supply 88–132 VAC or 90–150 VDC (High Voltage Range) Actuator Output 0–200 mA (Forward Acting) Speed Range 500 Hz to 25,000 Hz (Magnetic Pickup input) Load Sharing ±2.5 VDC Load Sharing Lines Idle Speed Adjustable from 25% to 100% of Rated Speed Enclosure Chassis Mount (Sheet metal housing) Ambient Temp. -40°C to 70°C (-40°F to 158°F) Vibration 4Gs (5 to 500 Hz) Product Advantages (Key Benefits) Proven Reliability: The 2301A series is renowned globally for its extreme durability and long service life in harsh industrial and marine environments. Precise Load Sharing: Provides exceptional stability when paralleling multiple generators, ensuring a balanced distribution of real power (kW). Speed Stability: Offers isochronous speed control, maintaining exactly the same frequency regardless of the load applied to the generator. Flexible Dynamics: Features adjustable gain, reset, and actuator compensation pots, allowing it to be tuned to the unique response characteristics of various engine types. Built-in Protection: Includes failsafe circuitry that shuts down the actuator signal if the speed sensor (Magnetic Pickup) signal is lost. Precautions (Important Notes) Voltage Selection: Ensure the power supply matches the 88–132 VAC / 90–150 VDC range. Applying low voltage (24V) to this specific model will result in non-operation, while incorrect high voltage can destroy the unit. Magnetic Pickup (MPU) Clearance: The MPU must be properly gapped from the flywheel ring gear to ensure a clean signal. A weak signal will cause unstable speed or a “Loss of Speed” shutdown. Shielding: All low-level signal wires (MPU and Load Sharing lines) must be twisted-pair shielded cables and grounded at the control end only to prevent electromagnetic interference. Actuator Compatibility: This is a Forward Acting model. Ensure the mechanical governor or actuator is configured to increase fuel when the current increases. Product Applications (Typical Use Cases) Marine Power Generation: Managing the main and auxiliary generators on ships for stable propulsion and hotel loads. Remote Power Plants: Synchronizing multiple diesel or gas engines to provide steady electricity for mining or industrial camps. Emergency Backup Systems: Ensuring rapid and stable power ramp-up for hospitals and data centers during grid failure. Co-generation: Controlling steam turbines that generate both process heat and electricity in manufacturing plants. Oil & Gas Facilities: Providing frequency-stable power for remote drilling rigs and offshore platforms. Shipping Port: Xiamen, China Payment: Bank of Chicago, Bank of Singapore Express cooperation: fedex, DHL, UPS and your express account Service: Professional Sales provides 24 hours /7 days online service Please make an inquiry for more models： 5501-381 WOODWARD 5466-1047 WOODWARD 8200-226 WOODWARD 5466-1049 WOODWARD 8250-565 WOODWARD 5466-253 WOODWARD 8272-582 WOODWARD 5501-365 WOODWARD 8290-189 WOODWARD 723PLUS WOODWARD 8290-191 WOODWARD 8200-203 WOODWARD 8290-195 WOODWARD 8235-622 WOODWARD 8405-307 WOODWARD 8251-766 WOODWARD 8406-113 WOODWARD 8405-011 WOODWARD 8407-522 WOODWARD 8405-084 WOODWARD 8440-1706 WOODWARD 9904-041 WOODWARD 8440-1831 WOODWARD 9905-028 WOODWARD PCU-DPIO V4.6.3 WOODWARD 9905-392 WOODWARD 1680-2004 WOODWARD 9905-463 WOODWARD 8235-154 WOODWARD 9905-792 WOODWARD 8250-573 WOODWARD 9905-990 WOODWARD 8273-140 WOODWARD 9907-1106 WOODWARD 8440-2165 WOODWARD 9907-186 WOODWARD 8901-457 WOODWARD 9907-205 WOODWARD 8923-1633 WOODWARD 9907-345 WOODWARD