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9905-020 - 2301A Load Sharing and Speed Control Module is available in stock which ships the same day.
9905-020 - 2301A Load Sharing and Speed Control Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 9905-020
Manufacturer: Woodward
Series: 2301A
Control Type: Speed Control & Load Sharing
Input Voltage: 88–132 VAC or 100–150 VDC (High Voltage Model)
Magnetic Pickup: 1.0 to 30 Vrms
Power Consumption: 5 Watts Nominal
Operating Temp: -40 °C to +85 °C
Actuator Output: 0–200 mA (Standard)
Enclosure: Chassis Mount (Unsealed)
Origin: United States
FUNCTIONAL DESCRIPTION:
The 9905-020 is a robust 2301A Load Sharing and Speed Control module designed and manufactured by Woodward to provide precise governing for prime movers such as diesel engines, gas engines, or steam turbines. As a high-voltage variant, it is designed to operate within power systems that utilize 115 VAC or 125 VDC supplies. This electronic control ensures stable frequency and proportional load distribution, making it a critical component for both single-unit governing and complex multi-generator parallel operations.
PRECISION SPEED GOVERNING
The module monitors the speed of the prime mover via a magnetic pickup (MPU) and compares it to a programmed setpoint. It then generates a precise 0–200 mA signal to drive the actuator, regulating fuel flow to maintain the desired RPM. The 9905-020 supports both isochronous operation for constant frequency and droop operation for stable paralleling with utility grids or other generators, providing the versatility needed for industrial power plants.
ADVANCED LOAD SHARING CAPABILITIES
The 2301A Load Sharing and Speed Control module facilitates proportional load sharing through a dedicated communication bus. By sensing the individual generator's load and exchanging data with other 2301A controls over the load-sharing lines, it ensures that every unit in the system carries an equal percentage of its rated capacity. This prevents "load swinging" and protects individual engines from being overloaded during sudden changes in demand.
SYSTEM PROTECTION AND RELIABILITY
The 2301A series is renowned for its analog simplicity and ruggedized performance. The 2301A Load Sharing and Speed Control module features built-in protection against speed signal loss; if the magnetic pickup fails, the control immediately drives the actuator to a minimum fuel state to prevent overspeed. Its wide operating temperature range and high immunity to electrical noise make it a reliable choice for the demanding environments found in marine, oil and gas, and remote power generation facilities.
WHY BUY FROM WOC:
World of Controls specializes in extending the operational lifespan of Woodward legacy systems by providing the 9905-020 in both UNUSED and professionally REBUILT conditions. Every high-voltage 2301A control undergoes exhaustive functional validation on specialized test benches to verify speed sensing thresholds, load-sharing line stability, and actuator output linearity. By combining this rigorous technical testing with global express logistics and a comprehensive warranty, WOC delivers a high-reliability solution that ensures your power generation systems remain online and efficient.
What is the Woodward 9905-020?
The 9905-020 is a high-voltage electronic control module from the Woodward 2301A series designed for speed governing and load sharing. It manages the fuel intake of engines or turbines to maintain a constant speed and ensures that multiple generators running in parallel share the electrical load proportionally.
What is the primary difference between the 9905-020 and low-voltage models?
The 2301A Load Sharing and Speed Control module is a high-voltage model designed to operate on 88–132 VAC or 100–150 VDC power supplies, whereas low-voltage models (like the 9907-014) typically require 10–40 VDC.
Can the 2301A Load Sharing and Speed Control module be used in isochronous mode?
Yes, it is designed for isochronous operation, which maintains a constant engine speed regardless of the load, provided the engine is capable of handling the load changes.
How does the control handle a failure of the Magnetic Pickup (MPU)?
If the speed signal is lost, the 2301A Load Sharing and Speed Control module initiates a failsafe response by reducing the actuator output to minimum fuel, effectively shutting down or slowing the engine to protect it from damage.
Is the 9905-020 compatible with other Woodward 2301A controls?
Yes, it can be paralleled with other 2301A controls using standard load-sharing lines, provided the systems are configured to communicate over the same load-sharing bus.
