Woodward 8272-683 Digital
| Item | Specification |
|---|---|
| Part Number | 9907-028 (Rev C / Rev E) |
| Official Product Name | SPM-A Analog Speed & Phase Synchronizer Module |
| Core Function | Generator genset frequency & phase matching for grid/paralleling breaker closing |
| Input Sensing Voltage | 115 / 230 VAC RMS, auto-adaptive |
| Voltage Tolerance Range | ±10% of rated AC input |
| Supported Grid Frequency | 50 Hz / 60 Hz dual universal |
| Frequency Synchronization Deviation Range | ±10% nominal frequency |
| Static Phase Matching Accuracy | ±5 electrical degrees |
| Max Allowed Phase Deviation Threshold | ±10 electrical degrees |
| Voltage Matching Function | Not integrated (speed/phase only control) |
| Selectable Dwell Match-Up Time | 1/8 s, 1/4 s, 1/2 s, 1 s (factory default: 0.5 s) |
| Power Consumption | ≤ 5 W maximum |
| Built-in Control Output Channels | High impedance output, Low impedance output, EPG dedicated output |
| Compatible Woodward Controllers | 2301, 2301A, 2500, EPG, EGA / EGM governor series |
| Operating Mode Selection | OFF, RUN, CHECK, PERMISSIVE four switchable modes |
| Breaker Contact Resistive Rating | 10 A @ 28 VDC; 3 A @ 120 VAC (50/60 Hz) |
| Operating Temperature Range | -45 °C ~ +70 °C |
| Optimal Stable Working Temp | +10 °C ~ +30 °C |
| Storage & Transit Temperature | -45 °C ~ +70 °C |
| Overall Dimension (W × H × D) | 292 mm × 171 mm × 57 mm |
| Net Unit Weight | 1.71 ~ 2.2 kg |
| Mounting Type | Cabinet panel embedded mounting / DIN rail optional |
| Enclosure Protection Class | IP20 (indoor switchgear cabinet installation) |
| Adjustment Potentiometers | Phase Offset, Gain, Stability trimmers on front panel |
| Fail-Safe Logic | Lockout circuit prevents breaker closing under out-of-sync condition |
| Manufacturing Origin | United States |
| Typical Application Scenarios | Diesel/gas generator grid paralleling, multi-genset bus synchronization, marine auxiliary power synchronization, industrial backup power transfer systems |
