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DG Synchronization Panels

DG Synchronization Panels

Key Functions of a DG Synchronization Panel

  1. Synchronization:

    • Matches the voltage, frequency, and phase sequence of multiple generators or a generator with the utility grid.

    • Enables safe closing of breaker without causing electrical disturbances.

  2. Load Sharing:

    • Automatically distributes electrical load between generators.

    • Prevents overloading of a single generator.

  3. Auto Start/Stop:

    • Generators start/stop automatically based on load demand.

    • Reduces fuel consumption and wear-and-tear.

  4. Changeover Between Grid and DG:

    • Seamless changeover in case of grid failure.

    • Automatic or manual switching modes available.

  5. Generator Protection:

    • Over/under voltage

    • Over/under frequency

    • Overload, reverse power, phase failure, etc.

  6. Monitoring and Control:

    • SCADA or HMI interface for real-time monitoring.

    • Remote control capability (optional).


Main Components

ComponentFunction
Control RelaysFor interlocking and automation
Synchronization RelaysControls voltage, phase, and frequency matching
Load Sharing ModuleManages power distribution among DGs
AVR (Automatic Voltage Regulator)Maintains generator voltage
Speed GovernorMaintains engine RPM for frequency control
PLC or MicrocontrollerAutomation and logic control
Circuit Breakers/ContactorsLoad connection/disconnection
Meters (V, A, Hz, PF)Display electrical parameters
Alarms and IndicatorsFault and status display

Types of Synchronization

  1. Manual Synchronization – Operator manually matches parameters.

  2. Semi-Automatic Synchronization – Assistance in alignment but manual breaker closing.

  3. Fully Automatic Synchronization – Fully automatic matching and connection.


Applications

  • Hospitals

  • Data centers

  • Factories

  • Large commercial buildings

  • Utilities and substations

  • Remote or off-grid installations