Product Core Brief
- Model: SYN5202-0277 (also designated as SYN 5202-0277 / SYN5202)
- Brand: ABB Power Grids / ABB Electrical Automation
- Series: Synchrotact 5 (SYN 5000 Series)
- Core Function: Microprocessor-controlled automatic synchronizing device and synchrocheck relay designed to safely parallel synchronous generators with power grids or interconnect power systems.
- Type: Dual-Channel Automatic Synchronizer / Synchrocheck Unit
- Key Specs: Dual redundant processing channels (main + safety check), voltage/frequency matching output controls, backlit LCD HMI display, configurable input/output relays, high-accuracy phase angle measurement
- Condition: New Original (New Surplus) / Tested Surplus
Product Introduction
In power generation stations, hydro plants, and heavy industrial power networks, connecting a synchronous generator to an energized grid requires precise matching of voltage amplitude, frequency, and phase angle. Closing a circuit breaker out of phase can cause severe mechanical damage to turbine shafts, generator windings, and switchgear. The ABB SYN5202-0277 is a high-reliability dual-channel automatic synchronizing unit from ABB’s field-proven Synchrotact 5 family.
Engineered with two independent microprocessor channels, the SYN5202-0277 automatically adjusts generator speed and excitation voltage until all synchronization parameters are met. Once conditions align, it calculates the exact breaker closing lead time to ensure phase coincidence at the instant the contacts touch.
