Overview

The Woodward EC8551-094FY Synchronizer is used in two- or three-phase AC generator systems. Its primary role is to ensure that a generator’s output is properly synchronized with the grid or another generator before connection. By automatically adjusting frequency, phase angle, and voltage, it prevents damage to equipment and ensures smooth load sharing.

This synchronizer is suitable for a wide range of prime movers, from fast-reacting diesel engines to soft-reacting gas turbines, making it versatile across industries such as power generation, oil & gas, and marine propulsion.

Technical Specifications

Key Features

• Automatic Synchronization: Matches generator frequency, phase, and voltage to the bus.

• Flexible Output: Provides either analog or discrete bias signals.

• High Accuracy: Class I precision with true RMS voltage sensing.

• Selectable Modes: Run, Check, Permit, and Off modes for operational flexibility.

• Wide Applicability: Works with both diesel and gas turbine prime movers.

Typical Applications

• Power Plants: Synchronizing backup or auxiliary generators with the main grid.

• Marine Systems: Ensuring safe paralleling of shipboard generators.

• Oil & Gas: Synchronizing turbine-driven generators in refineries and offshore platforms.

• Industrial Facilities: Smooth integration of multiple generator sets for continuous power supply.

FAQ

Q1: What does the EC8551-094FY do?

A1: It automatically synchronizes a generator’s frequency, phase, and voltage with a bus or another generator.

Q2: What types of prime movers can it handle?

A2: It is suitable for fast-reacting diesel engines and soft-reacting gas turbines.

Q3: How does it sense voltage?

A3: It uses two-phase true RMS voltage sensing for both generator and bus.

Q4: What synchronization modes are available?

A4: It supports phase match and slip frequency synchronization with voltage matching.