
DG Synchronization Panels
Key Functions of a DG Synchronization Panel
-
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.
-
-
Load Sharing:
-
Automatically distributes electrical load between generators.
-
Prevents overloading of a single generator.
-
-
Auto Start/Stop:
-
Generators start/stop automatically based on load demand.
-
Reduces fuel consumption and wear-and-tear.
-
-
Changeover Between Grid and DG:
-
Seamless changeover in case of grid failure.
-
Automatic or manual switching modes available.
-
-
Generator Protection:
-
Over/under voltage
-
Over/under frequency
-
Overload, reverse power, phase failure, etc.
-
-
Monitoring and Control:
-
SCADA or HMI interface for real-time monitoring.
-
Remote control capability (optional).
-
Main Components
Component | Function |
---|---|
Control Relays | For interlocking and automation |
Synchronization Relays | Controls voltage, phase, and frequency matching |
Load Sharing Module | Manages power distribution among DGs |
AVR (Automatic Voltage Regulator) | Maintains generator voltage |
Speed Governor | Maintains engine RPM for frequency control |
PLC or Microcontroller | Automation and logic control |
Circuit Breakers/Contactors | Load connection/disconnection |
Meters (V, A, Hz, PF) | Display electrical parameters |
Alarms and Indicators | Fault and status display |
Types of Synchronization
-
Manual Synchronization – Operator manually matches parameters.
-
Semi-Automatic Synchronization – Assistance in alignment but manual breaker closing.
-
Fully Automatic Synchronization – Fully automatic matching and connection.
Applications
-
Hospitals
-
Data centers
-
Factories
-
Large commercial buildings
-
Utilities and substations
-
Remote or off-grid installations