WOODWARD 9907-838 REV-NEW Load Sharing Module

Description

The WOODWARD 9907-838 REV-NEW Load Sharing Module is a digital control unit designed for accurate load distribution in parallel generator systems. It enables stable real and reactive power sharing between multiple engines or turbine-driven generators. With improved reliability and fast dynamic response, this module is widely applied in industrial and marine power management systems.

Product Specifications

Parameter	Description
Manufacturer	Woodward
Model Number	9907-838 REV-NEW
Product Type	Load Sharing Module
Country of Origin	United States
Input Voltage	18–32 VDC
Power Consumption	Approx. 15 W
Control Mode	Isochronous / Droop Load Sharing
Signal Inputs	CT inputs, voltage sensing, speed reference
Output Signal	Actuator control / load share line
Operating Temperature	-20°C to +70°C
Storage Temperature	-40°C to +85°C
Dimensions	Approx. 240 × 160 × 60 mm
Weight	Approx. 1.5 kg
Mounting Type	Panel or rack mounting

Key Features

• Accurate kW and kVAR load sharing
• Stable parallel generator operation
• Fast response to load changes
• Adjustable droop and gain settings
• Strong anti-interference capability
• Compatible with Woodward governor systems

Installation and Operation Notes

1. Verify proper DC supply (18–32 VDC) before energizing.
2. Ensure correct CT polarity and voltage sensing wiring.
3. Use shielded wiring for load share lines to prevent signal noise.
4. Configure droop and gain parameters during commissioning.
5. Perform synchronization checks before parallel operation.
6. Disconnect power before servicing or wiring adjustments.

Application Areas

• Parallel diesel generator systems
• Gas engine power plants
• Marine power management systems
• Industrial standby power stations
• Distributed energy systems

Frequently Asked Questions (FAQ)

Q1: What is the main function of the 9907-838 REV-NEW module?
A: It ensures balanced load sharing between generators operating in parallel.

Q2: Does it support both isochronous and droop control?
A: Yes, it supports configurable isochronous and droop modes.

Q3: Is synchronization equipment required?
A: Yes, proper synchronization must be completed before closing breakers for parallel operation.

Q4: What signals are required for load measurement?
A: Current transformer (CT) inputs and voltage sensing signals are required.

Q5: Can it operate in marine environments?
A: Yes, when installed in a protected control cabinet, it is suitable for marine applications.

Recommended Similar Models

Model Number	Description
Woodward 9907-205	Digital Load Sharing Controller
Woodward 9907-018	Speed Control Module
Woodward 9907-147	Generator Governing Module
Woodward 9907-164	Engine Governor Control
Woodward 9907-252	Governor Control Board

The WOODWARD 9907-838 REV-NEW Load Sharing Module provides dependable and precise load distribution for multi-generator systems, ensuring stable and efficient power operation in demanding industrial environments.

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