Get Started - Generator Synchronizing Panels

Generator synchronizing panels are the brains behind seamlessly connecting multiple generators to a common electrical busbar to meet increased power demands or provide redundancy in critical applications. They ensure a smooth and safe paralleling process, preventing damage to both the generators and the electrical system.

Key Functions

  • Monitoring: Synchronizing panels continuously monitor key parameters of both the generators and the electrical busbar, including:
    • Voltage
    • Frequency
    • Phase angle
    • Phase sequence
  • Synchronization Control: The panel’s control logic compares readings from the generators and the busbar. It adjusts the speed and excitation of the incoming generator as needed to perfectly match the parameters of the live electrical grid before connection.
  • Automatic Switching: When the parameters are synchronized, the panel sends a signal to close the circuit breaker, seamlessly connecting the generator to the busbar.
  • Load Sharing: In systems with multiple generators, the panel helps distribute the power demand evenly across the generators.
  • Protection: The panel has built-in protective relays and safety features to prevent damage to the system or the generators in case of abnormal conditions.

Components of a Generator Synchronizing Panel

  • Synchronization Relays/Controllers: The heart of the panel, responsible for monitoring and control.
  • Metering: Voltmeters, frequency meters, and often a synchroscope (visualizes phase alignment)
  • Circuit Breakers: Control the connection of generators to the busbar.
  • Control Switches and Indicators: Allow for manual operation and provide status updates.
  • Surge Protection: Protects sensitive control circuitry.
  • PLC/HMI (Optional): In modern systems, PLCs (Programmable Logic Controllers) and HMIs (Human Machine Interfaces) provide greater control flexibility and advanced monitoring capabilities.

Types of Synchronization

  • Manual Synchronization: Operators monitor parameters and manually adjust the generator’s controls before closing the breaker.
  • Automatic Synchronization: The panel handles the entire synchronization process automatically for greater speed and accuracy.

Applications

  • Backup Power: Synchronizing panels are crucial for facilities that rely on backup generators like hospitals and data centers.
  • Peak Demand Management: Industries might synchronize generators to manage peak energy demands and reduce costs.
  • Utility Grid Support: In some cases, large industrial facilities may synchronize their generators with the utility grid to provide additional power during peak periods.