Woodward 8440‑1878 Digital Synchronizer with Load Management

Product Description

The Woodward 8440‑1878 DSLC‑2 is an advanced digital synchronizer and load control module engineered for three-phase AC generator systems. It integrates synchronization, load sensing, and process control functions into one microprocessor-based unit, enabling precise paralleling and voltage matching for smooth, reliable breaker closure events.

Moreover, the unit supports phase-match and slip-frequency synchronization, allowing flexible control for both new installations and legacy systems. With 5 A CT inputs for accurate load measurement and multiple communication interfaces including dual Ethernet, RS‑485, and RS‑232, it seamlessly integrates with modern SCADA, PLC, and plant automation networks.

The DSLC‑2 is suitable for industrial plants, data centers, hospitals, and marine power systems, supporting up to 32 generators in parallel, ensuring fast, stable load sharing under variable operating conditions. Its rugged design, wide operating temperature range, and industrial certifications guarantee dependable performance in demanding environments.

Technical Specifications

• Product family: DSLC‑2 Digital Synchronizer and Load Control

• Model number: 8440‑1878

• Power supply: 12/24 VDC nominal

• CT inputs: 5 A nominal for precise load sensing

• Synchronization modes: Phase-match and slip-frequency; voltage matching supported

• Generator paralleling: Supports up to 32 generators

• Communication ports: 2× Ethernet, 1× RS‑485, 1× RS‑232

• Operating temperature: −40 °C to +70 °C

• Dimensions: 250 × 227 × 84 mm (9.84 × 9.00 × 3.30 in)

• Weight: 2.0 kg

• Certifications: UL, cUL, GOST‑R, CSA

FAQ

Q1: What is the primary function of the 8440‑1878?
A1: It provides precise synchronization, load sensing, and process control for three-phase AC generator systems.

Q2: How many generators can the DSLC‑2 control in parallel?
A2: It supports paralleling of up to 32 generators for large multi-unit power plants.

Q3: Which synchronization modes are supported?
A3: Phase-match and slip-frequency synchronization, with voltage matching for smooth breaker operation.

Q4: What communication interfaces are available?
A4: Dual Ethernet, RS‑485, and RS‑232 for integration with SCADA, PLC, and legacy systems.

Q5: What is the operational temperature range?
A5: The unit operates reliably from −40 °C to +70 °C in industrial environments.