ABB SYN5302A-Z high-precision digital automatic synchronization device

ABB SYN5302A-Z (SYNC HROTACT 5) high-precision digital automatic synchronization device
Conclusion: It has not been discontinued and is still in service and supply (2026-06-02), and belongs to ABB’s mainstream synchronous/grid connected control products currently in service.

1、 Model and ordering information (common versions)
Model: SYN5302A-Z
Series: SyncHROTACT 5
Common version/order number:
V217：3BHB006716R0217
V277:3BHB006716R0277 (newer mainstream version)
V2277/V5777: Derivative Customized Edition
2、 Core positioning and purpose
High precision automatic synchronization/grid connection device, used for:
generator ↔ Grid/busbar quasi synchronous grid connection (thermal power/hydropower/gas power plants)
power grid ↔ Parallel connection of power grid, isolated power grid/microgrid
Parallel operation and load distribution of multiple generators
Medium high voltage system (100V~765kV), millisecond level synchronization
3、 Key technical parameters (high-precision highlights)
Frequency accuracy: ± 0.001 Hz
Phase accuracy: ± 0.1 ° (electrical angle)
Voltage input: 0-1000V AC, 45-65Hz (adaptive 50/60Hz)
Control output: synchronous control of up to 7 circuit breakers
Power supply: 24V DC (± 20%) or 110/220V AC/DC
Communication: RS485, Ethernet, optical port; Supports IEC 61850/Modbus/Profibus
Working temperature: -10 ℃~+60 ℃ (industrial wide temperature)
4、 Functional Features
Dual processor redundancy, high reliability
Dual mode of quasi synchronous/self synchronous, automatic/manual optional
Complete protection against overvoltage/undervoltage, overclocking/underfrequency, phase sequence errors, etc
EMC optimization, compliant with IEC 61000-4; IP40 (panel)
5、 Discontinuation and Replacement Instructions
SYN5302A-Z itself has not been discontinued and is the main active model.
The old SYN5100/SYN520V has gradually been replaced by the SYN5302 series.
There are new original, refurbished, and disassembled sources in the market, with V277 as the mainstream supply version.
6、 Typical applications
Thermal power plants, hydropower stations, gas turbine power plants
Large substations, microgrids/islanded power supply systems
Multi motor synchronous transmission for metallurgy, papermaking, and other industries
Parallel control of ship/offshore platform power station