SPM-D2-1010B/YB 8440-2167
SPM-D2-1010B/YB Three-Phase Synchronizer - Automatic Generator Synchronizing Unit
Lifecycle note: Use the unit nameplate and current Woodward documentation as final references before approving a replacement.
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Woodward SPM-D2-1010B/YB 8440-2167 is a microprocessor-based synchronizer for AC generator applications. The YB package uses 100 VAC measuring inputs and can evaluate three-phase or two-phase generator and busbar voltages before issuing the breaker-close command.
Woodward 8440-2167 automatically matches frequency, phase and voltage using discrete raise/lower commands to compatible governors and automatic voltage regulators. Phase-match or slip-frequency synchronization, synch-check supervision and circuit-breaker time compensation support repeatable paralleling.
The official SPM-D2-10 specification lists five discrete alarm inputs, three discrete outputs, a 24 VDC supply, USB serial service and Woodward ToolKit configuration for the YB variant. The front display and synchronoscope provide operating and commissioning feedback.
Commissioning Woodward 8440-2167 requires correct generator/bus voltage phasing, sensing range, breaker feedback and close-time compensation, plus verified speed and voltage bias directions before an automatic breaker close is enabled.
| Manufacturer | Woodward |
|---|---|
| Model | SPM-D2-1010B/YB 8440-2167 |
| Ordering number | 8440-2167 |
| Product type | Automatic Generator Synchronizing Unit |
| System family | Woodward SPM-D2-10 Series |
| Exact package | SPM-D2-1010B/YB |
| Measuring inputs | 100 VAC; three-phase / two-phase selectable |
| Power supply | 24 VDC |
| Synchronized breakers | 1 |
| Bias outputs | Discrete raise/lower for speed and voltage |
| Discrete alarm inputs | 5 |
| Discrete outputs | 3 |
| Service interface | 1 USB serial interface; ToolKit configuration |
Woodward SPM-D2-1010B/YB 8440-2167 is a automatic generator synchronizing unit in the Woodward SPM-D2-10 Series. Its exact role is spm-d2-1010b/yb three-phase synchronizer.
Woodward SPM-D2-1010B/YB 8440-2167 is used where the installed system requires 100 VAC sensing, 24 VDC supply and discrete speed/voltage bias. Confirm the complete architecture and application approval before replacement.
The key data for Woodward SPM-D2-1010B/YB 8440-2167 are the exact package, electrical ranges, I/O or interface configuration, environmental limits and system role listed in the technical table and applicable Woodward documentation.
Compare Woodward SPM-D2-1010B/YB 8440-2167 with the installed nameplate, revision, firmware or Coder release, connectors, terminal assignments, sensing ranges and system configuration. A nearby suffix is not proof of compatibility.
Verify power isolation, grounding, wiring, mounting, field signal ranges, communication settings and the approved application file before installing Woodward SPM-D2-1010B/YB 8440-2167.
Commission Woodward SPM-D2-1010B/YB 8440-2167 with the applicable Woodward procedure, then prove inputs, outputs, alarms, control actions, communications and fail-safe behavior before returning the equipment to service.
Do not assume a direct replacement for Woodward SPM-D2-1010B/YB 8440-2167. Match the complete order code 8440-2167, suffix, hardware revision, electrical interfaces and installed-system requirements.
Provide the complete Woodward SPM-D2-1010B/YB 8440-2167 nameplate, part number, revision and serial number, together with the application, quantity, destination and clear connector photographs.
Woodward specification 37622 explicitly lists order code 8440-2167 as the SPM-D2-1010B/YB package. Open the linked official Woodward document in a new tab and compare it with the installed-unit documentation.
Send the complete model, part number, revision, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
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