WOODWARD 8440-2150 Circuit Breaker Control Module

Product Overview

The Woodward 8440-2150 is a highly capable circuit breaker control and synchronization module belonging to the LS-5 V2 Series. Specifically designated as the LS-521 version, this unit is engineered to manage complex power bus segments. It excels at synchronizing and controlling circuit breakers in applications ranging from simple mains-to-generator transfers to complex multi-segment load sharing. 

Technical Specifications

• Manufacturer: Woodward

• Series: LS-5 V2

• Model / Part Number: 8440-2150 (LS-521)

• Current Rating: 5 A

• Input Voltage Range: 12/24 Vdc (Operates between 8 to 40 Vdc)

• Input Resistance: Approx. 20 kOhms

• Linear Measuring Range: Up to 1.25 x $V_{rated}$

• Accuracy: Class 1

• Ambient Humidity: Up to 95%, non-condensing

• Enclosure: Plastic chassis specifically designed for secure mounting

Core Synchronization & Control Functions

The LS-521 module is equipped with advanced logic to handle critical power transitions:

• Phase Match Syncing: Ensures the phase angles of two independent power sources are aligned before closing the breaker.

• Slip Frequency Synchronization: Manages the frequency difference between sources to facilitate smooth coupling.

• Mains Failure Detection: Rapidly identifies utility power loss and manages the recoupling process once stable power returns.

• True RMS Sensing: Provides accurate voltage and current measurements even in systems with high harmonic distortion.

• Load Sharing Segment Control: Manages power distribution across different segments of a complex distribution network.