ABB SYNCHROTACT 5 Automatic Synchronizing & Synchrocheck Relay

Short Description:

1. Core FunctionsAutomatic Synchronization: Controls the voltage, frequency and


Product Detail

1. Core Functions

Automatic Synchronization: Controls the voltage, frequency and phase of generators / lines to fully match the power grid, enabling safe closing and grid connection.

Synchrocheck: Provides safety interlocking during manual grid connection to prevent out-of-synchronism closing.

Multi-object Control: A single device can store 7 sets of parameters and control up to 7 circuit breakers.

Dead Bus Synchronization: Supports closing logic when one side is without voltage.

Frequency Compatibility: Suitable for 50Hz / 60Hz / 16.7Hz (railway traction networks).

2. Key Technical Highlights

Dual-channel Safety Architecture

Two systems with independent hardware, CPUs from different manufacturers, and different software operate in series.

Channel 1 performs synchronization, while Channel 2 provides independent monitoring to prevent common cause failures and achieve the highest safety level.

Communication & Remote Functionality

Supports IEC 61850, Modbus, Profibus, and LON buses.

Supports TCP/IP remote maintenance, diagnosis, and firmware upgrade.

Configuration Software – SynView 5

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Supports parameter configuration, oscillography, event logging, and fault diagnosis on Windows platforms.

3. Typical Applications

Power plants: Generator-to-grid synchronization

Substations: Line / busbar paralleling

Industrial captive power plants, data centers, marine power stations

Power grid black start (dead bus closing)

4. Upgrade Path

Can be directly upgraded to SYNCHROTACT 6: fully compatible in dimensions and wiring, with low replacement cost.


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