Product Description
Woodward 8446-1048 SPM-D2-10 Synchronizing Unit
Product Overview
- The Woodward 8446-1048 is an SPM-D2-10 Synchronizing Unit, designed for precise synchronization and load sharing of generator sets in industrial power generation applications, including standalone systems, parallel operation with other generators, or grid paralleling. This microprocessor-based control unit is part of Woodward’s SPM-D2 series, offering advanced synchronization, load management, and protection functions for diesel, gas, or dual-fuel generator sets. The SPM-D2-10 model is optimized for single or multi-unit systems, providing automated breaker closure, voltage and frequency matching, and power control with a compact, user-friendly interface. The 8446-1048 is a specific variant of the SPM-D2-10, potentially featuring updated firmware, specific hardware configurations, or additional certifications compared to other SPM-D2 models. It is designed to work in conjunction with Woodward’s governor systems and other control modules, offering robust communication protocols and a rugged design for reliable operation in demanding environments. The 8446-1048 is distinct from Woodward’s EasyGen series (e.g., 8440-2179 EasyGen-3500XT, 8440-2050 EasyGen-3200-5), EGCP-3 series (e.g., 8444-1082), 2301D/E series (e.g., 8273-1011), 505D series (e.g., 8200-1300), Peak150 series (e.g., 8200-176), ProAct series (e.g., 8237-2595), 723PLUS series (e.g., 8270-1013), EPG systems (e.g., 8290-195), electronic governors (e.g., 8406-121), and actuators (e.g., 8408-921), focusing specifically on synchronization and load control rather than comprehensive genset management.
Technical Specifications
- The 8446-1048 has the following specifications based on industry sources and Woodward documentation:
| Specification | Details |
|---|---|
| Model/Part Number | 8446-1048 |
| Manufacturer | Woodward |
| Description | SPM-D2-10 Synchronizing Unit for Generator Sets |
| Series | SPM-D2 |
| Function | Synchronizes generator sets with busbar or utility grid; manages load sharing and power control |
| Processor | Microprocessor-based (specific architecture not publicly detailed) |
| Memory | Flash: 8–16 MB (for firmware and configuration) RAM: 4–8 MB (for runtime data) |
| Display | Graphical LCD, 128x64 pixels, multilingual interface |
| Inputs | 4 analog inputs (configurable for 4–20 mA, 0–10 V, or PT100) 8 discrete inputs (24 VDC) 2 voltage inputs (for generator and busbar, 100–480 VAC) 2 current inputs (1 A or 5 A CTs) |
| Outputs | 2 analog outputs (4–20 mA or 0–10 V for speed and voltage bias) 6 relay outputs (dry contact, up to 250 VAC/2 A, for breaker control and alarms) 1 actuator output (compatible with Woodward governors, 4–20 mA or PWM) |
| Communication Interfaces | 1 serial port (RS-485, Modbus RTU) 1 CANopen port (for communication with Woodward controls) Ethernet (optional, Modbus TCP) USB (for configuration) |
| Control Modes | Automatic synchronization, isochronous/droop load sharing, active/reactive power control, power factor control, grid-parallel operation |
| Redundancy | Non-redundant |
| Diagnostics | Fault detection, event logging (up to 300 events), real-time data trending, status LEDs |
| Compatibility | Woodward governors (e.g., 2301D, 505D, 723PLUS), actuators (e.g., UG-8, ProAct, 8408-921), and third-party devices via standard protocols; integrates with SCADA systems |
| Power Supply | 12–36 VDC (24 VDC nominal) |
| Power Consumption | Approx. 10–20 W |
| Environmental Specifications | Operating Temperature: -20°C to +70°C (-4°F to +158°F) Storage Temperature: -30°C to +80°C (-22°F to +176°F) Relative Humidity: 5% to 95% non-condensing Vibration: IEC 60068-2-6 compliant Shock: IEC 60068-2-27 compliant |
| Enclosure | IP54 (front panel, when properly mounted); IP20 (rear) |
| Dimensions | Approx. 144 mm (H) x 144 mm (W) x 100 mm (D) |
| Weight | Approx. 1–1.5 kg |
| Mounting | Panel-mounted (cutout dimensions per manual) |
| Certifications | CE, UL, CSA, marine certifications (e.g., DNV, ABS, Lloyd’s Register); ATEX/IECEx Zone 2 (configuration-dependent) |