Product Description
Woodward 9907-028 Rev C SPM-A Synchronizer
Product Overview
- The Woodward 9907-028 Rev C is an SPM-A (Synchronizer and Phase Matcher), designed for precise synchronization of generator sets with a busbar or utility grid in industrial power generation applications. This analog-based control unit is part of Woodward’s SPM-A series, providing reliable voltage, frequency, and phase matching for diesel, gas, or dual-fuel generator sets in single-unit or parallel operation. The SPM-A ensures safe and accurate breaker closure for grid or busbar paralleling with minimal setup complexity. The 9907-028 Rev C is a specific variant of the SPM-A, featuring Revision C hardware or firmware updates, which may include improved performance, enhanced stability, or additional features compared to earlier revisions or other SPM-A models (e.g., 9905-001K). It is designed to interface with Woodward governors and voltage regulators, offering robust performance in industrial environments. The 9907-028 Rev C is distinct from Woodward’s digital synchronizers like the DSLC series (e.g., 9905-976, 8923-1262), DSLC-2 series, EasyGen series (e.g., 8440-2179 EasyGen-3500XT, 8440-2050 EasyGen-3200-5), EGCP-3 series (e.g., 8444-1082), SPM-D2 series (e.g., 8446-1048), 505 series (e.g., 9905-792, 9905-864), 2301A series (e.g., 9905-463), MicroNet Plus (e.g., 8800-1001), TG-13 (e.g., 8516-050), 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 analog-based synchronization for generator sets.
Technical Specifications
- The 9907-028 Rev C has the following specifications based on industry sources and Woodward documentation:
| Specification | Details |
|---|---|
| Model/Part Number | 9907-028 Rev C |
| Manufacturer | Woodward |
| Description | SPM-A Synchronizer for Generator Sets |
| Series | SPM-A |
| Function | Synchronizes generator sets with busbar or utility grid; controls voltage, frequency, and phase matching |
| Control Type | Analog-based |
| Inputs | 2 voltage inputs (generator and busbar, 100–240 VAC) 2 current inputs (1 A or 5 A CTs, configuration-dependent) 1 speed bias input (from governor) |
| Outputs | 1 speed bias output (±3 VDC or ±9 VDC, configuration-dependent) 1 voltage bias output (±3 VDC or ±9 VDC, configuration-dependent) 2 relay outputs (dry contact, 250 VAC/5 A, for breaker closure and alarms) |
| Frequency Range | 40–70 Hz (suitable for 50/60 Hz systems) |
| Phase Matching Accuracy | ±2 degrees (typical) |
| Voltage Matching Accuracy | ±1% of nominal voltage |
| Communication Interfaces | None (analog control, no digital communication) |
| Control Modes | Automatic synchronization, manual synchronization (with external controls) |
| Redundancy | Non-redundant |
| Diagnostics | Basic fault detection, status LEDs for power, sync, and breaker status |
| Compatibility | Woodward governors (e.g., 2301A, 505, EGB series), voltage regulators (e.g., Basler, AVR), and third-party governors with compatible speed/voltage bias inputs; interfaces with circuit breakers |
| Power Supply | 90–150 VAC or 18–32 VDC (configuration-dependent) |
| Power Consumption | Approx. 5–15 W |
| Environmental Specifications | Operating Temperature: -40°C to +70°C (-40°F to +158°F) Storage Temperature: -55°C to +105°C (-67°F to +221°F) Relative Humidity: 5% to 95% non-condensing Vibration: MIL-STD-810 compliant Shock: MIL-STD-810 compliant |
| Enclosure | IP20 (requires control cabinet); optional IP54 with enclosure |
| Dimensions | Approx. 190 mm (H) x 140 mm (W) x 70 mm (D) |
| Weight | Approx. 1–1.5 kg |
| Mounting | Panel-mounted or DIN-rail (with adapter) |
| Certifications | CE, UL, CSA, marine certifications (e.g., DNV, ABS, Lloyd’s Register, configuration-dependent) |