I/O modules

The Woodward 9905-002N is a precision synchronizer control module for industrial generator systems. This vital unit manages the synchronization of an alternator to an electrical bus. Moreover, it ensures smooth and safe paralleling of power generation sources.

Core Function and Operational Principle

This module accurately matches the voltage, frequency, and phase angle of a generator to the bus. Upon achieving perfect alignment, it triggers the circuit breaker for a seamless connection. Consequently, the system prevents mechanical stress and power surges during the synchronization process.

Detailed Technical Specifications

The 9905-002N features a robust design for reliable performance in demanding environments. Below is a comprehensive breakdown of its key technical parameters.

Technical Specifications:

• Manufacturer & Model: Woodward 9905-002N

• Product Category: Synchronizer Control Module

• Rated Supply Voltage: 230 V AC

• Power Consumption: 10 Watts (typical operational load)

• Operating Frequency: 60 Hz (SPMA model designation)

• Primary Function: Automatic generator synchronization and paralleling

• Key Inputs: Monitors generator and bus voltage, frequency, and phase.

• Output Signal: Provides a “close breaker” command upon achieving sync.

• Control Accuracy: High-precision measurement for minimal slip frequency.

• Form Factor: Industrial-grade enclosed module or panel-mounted unit.

• Dimensions: Compact design for standard panel cutouts.

• Weight: Engineered for secure mounting without excessive panel load.

• Electrical Interface: Terminal block connections for power and signal wiring.

• Internal Components: Includes sensing transformers, logic processors, and relay outputs.

• Operating Temperature: Rated for stable performance in control room environments.

Integration and Typical Applications

The Woodward 9905-002N is essential for power plants, marine vessels, and industrial co-generation facilities. It integrates seamlessly with other Woodward governor and control products. For instance, it can work alongside speed control systems or protective devices like the RMS-TSG-TZ-C Static Trip unit. This module is part of a broader ecosystem that includes components like the IS200AEBMG1AFB board and sensors such as the PR6423/128-110.

Details