Overview

The Woodward 9905-148 belongs to the 2301A Electronic Load Sharing and Speed Control series. It is a forward‑acting model that operates in isochronous or droop mode, ensuring stable generator operation.

Moreover, it is compatible with both Woodward and non‑Woodward speed control devices, making it flexible for integration into diverse engine-driven generator systems. The controller provides automatic load sharing, speed control, and synchronization before grid connection.

Technical Data

Key Features

• Load Sharing → Distributes load evenly among generators, maximizing utilization and lifespan

• Speed Control → Maintains precise speed regulation, reducing wear and improving performance

• Synchronization → Ensures generators match frequency, phase, and voltage before grid connection

• Flexibility → Compatible with various engine types and generator sizes

• Isochronous/Droop Modes → Supports both constant frequency and proportional load sharing operation

Typical Applications

Power Generation Plants

• Multi-generator synchronization and load sharing

Industrial Facilities

• Backup and parallel generator systems

Marine Propulsion

• Shipboard generator synchronization and reactive power control

Utility Systems

• Distributed generation with import/export power management

Oil & Gas Operations

• Turbine-driven generators requiring precise synchronization and load control

FAQ

Q1: What makes the 9905-148 unique?
A1: It integrates load sharing and speed control in one unit, reducing complexity and improving reliability.

Q2: Can it work with non‑Woodward speed controls?
A2: Yes. It supports integration with both Woodward and non‑Woodward speed control devices.

Q3: What input signals does it accept?
A3: It accepts ±3 VDC, 0.5–4.5 VDC, or PWM speed setting inputs.

Q4: Is it suitable for harsh environments?
A4: Yes. It operates reliably from –40 °C to +85 °C.

Q5: What modes are supported?
A5: Isochronous mode for constant frequency and droop mode for proportional load sharing.