ABB SYN5202-0271
Product Name
ABB SYN5202-0271 SYNCHROTACT 5 Dual-Channel Digital Synchronizer Module (for generator-to-line & line-to-line paralleling, Modbus RTU/RS-485, 24 VDC auxiliary supply).
Product Description
The ABB SYN5202-0271 is a dual-channel digital synchronizer belonging to the SYNCHROTACT 5 series, designed for fully automatic synchronization and paralleling of generators to power lines, as well as paralleling of already synchronous lines in power generation, transmission, and industrial process applications. Its core safety architecture features two independent channels with distinct hardware and software to maximize protection against asynchronous closing, minimizing grid disturbance and equipment damage. Key capabilities include voltage, frequency, and phase angle monitoring; configurable sync setpoints (voltage/frequency/phase mismatch thresholds); dead bus/dead line handling; and alarm/control outputs for breaker closing and fault indication. It supports Modbus RTU over RS-485 for integration into SCADA/DCS systems, enabling remote monitoring, configuration, and control. Typical use cases include power plants (steam/gas/hydro), industrial cogeneration, and substations requiring high-reliability paralleling operations.
Key Parameters & Specifications
| Category | Specification | Notes (Discrepancy Alert) |
|---|---|---|
| Manufacturer | ABB (SYNCHROTACT 5 Series)
|
SYN5202-0271=dual-channel synchronizer; not a generic PLC/I/O or servo module |
| Model Number | SYN5202-0271 | Confirm suffix for region/variant; SYN5202=dual-channel base platform |
| Product Type | Dual-channel digital synchronizer (generator/line paralleling) | For safe closing of power circuit breakers |
| Channels | 2 independent synchronization channels (U1/U2); separate hardware/software | 2-out-of-2 or voted logic per application |
| System Frequency | 50 Hz, 60 Hz, 16.7 Hz (16 2/3 Hz) | Configurable via software (SinView 5 typical) |
| Voltage Input (Sync) | Nominal typically 50–130 VAC (phase-phase); 0–110% Un range | Confirm with your application’s nominal voltage |
| Auxiliary Power | 24 VDC (typical for SYN5202-0271); check nameplate for exact rating | Critical for reliable operation |
| Outputs | Control relays (breaker close, trip, alarm); 0–10 VDC analog output (monitoring); configurable fault/alarm signals | Over/under voltage, over/under frequency, phase sequence error, excessive phase mismatch |
| Communication | Modbus RTU over RS-485 | For SCADA/DCS integration; check baud rate/parity settings |
| Accuracy & Response | ±0.1% measurement accuracy (typical); response time < 100 ms (trip/alarm) | Depends on wiring, |
