Overview

The Woodward 8440-1667 is part of the SPM-D10/XN synchronizer series, engineered for precise and automated synchronization of three-phase AC generators. It continuously monitors voltage, frequency, and phase angle between the generator and the busbar, adjusting the generator’s speed and voltage to match the grid before issuing a breaker close command.

This model is especially suited for systems equipped with automatic voltage regulators (AVRs) and speed control modules, whether or not they are Woodward-branded. It supports both analog and PWM outputs, allowing flexible integration with a wide range of control architectures.

The unit features a two-line LCD display for real-time status, alarms, and parameter adjustments. Its compact design and rugged construction make it suitable for marine, industrial, and utility applications.

Key Specifications

Features

• Automatic Synchronization: Matches generator to grid in voltage, frequency, and phase.

• Flexible Outputs: Supports both analog and PWM for speed and voltage control.

• User Interface: LCD display provides clear feedback and alarm status.

• Wide Power Supply Range: Operates on 90–250 VAC/DC for global compatibility.

• Compact Design: Easy to integrate into existing control panels.

Typical Applications

• Power Plants: Synchronizing backup or peaking generators with the utility grid.

• Marine Systems: Aligning onboard generators with shore power.

• Industrial Facilities: Coordinating multiple generators in parallel operation.

• Microgrids: Managing synchronization between renewable and conventional sources.

FAQ

Q1: What makes the 8440-1667 different from other synchronizers?
A1: It offers both analog and PWM outputs, a wide power supply range, and a user-friendly LCD interface.

Q2: Can it be used with non-Woodward AVRs and speed controls?
A2: Yes, it is compatible with third-party equipment that supports standard analog or PWM inputs.

Q3: Is it suitable for marine or offshore use?
A3: Yes, its rugged design and wide input range make it ideal for marine and industrial environments.

Q4: What is the display used for?
A4: The two-line LCD shows synchronization status, alarms, and allows parameter configuration.