Schneider Electric PowerLogic™ MiCOM P922 Voltage and Frequency Management Relay

Schneider Electric PowerLogic™ MiCOM P922 Voltage and Frequency Management Relay is designed for power systems that need reliable voltage and frequency supervision along with load and generation management functions. It forms part of the MiCOM P92x range and is used in schemes where maintaining system stability is just as important as clearing abnormal conditions quickly.

The relay combines protection, measurement, control and automation functions in one unit, which makes it useful for substations, industrial power systems and network management applications. Instead of using separate devices for voltage monitoring, frequency supervision and restoration logic, the MiCOM P922 brings those tasks together in a single relay platform. That makes scheme design cleaner and gives operators a better view of how the system is behaving during disturbances.

MiCOM P922 is also suited for applications where load shedding and controlled restoration are part of the operating strategy. When the system recovers after a disturbance, the relay can support reconnection of disconnected loads in a controlled sequence, helping reduce downtime and avoid unnecessary stress on the network.

Specifications

• Manufacturer: Schneider Electric
• Product Family: PowerLogic™ MiCOM
• Model: MiCOM P922
• Relay Type: Numerical Voltage and Frequency Management Relay
• Protection Application: Voltage and frequency management, load shedding and system stability schemes
• Main Functions: Voltage monitoring, frequency monitoring, automation and restoration logic
• Suitable For: Utility substations, industrial power systems and network control applications
• Logic Capability: Supports load and generation management schemes
• Output Contacts: Up to 30 output contacts depending on configuration
• Restoration Function: Automatic restoration of disconnected loads after system recovery
• Measurement Performance: High frequency measurement accuracy for system stability applications
• Integration: Suitable for new and existing network control systems
• Communication: Supports standard communication protocols depending on relay configuration

Features

• Voltage and frequency management relay for power system stability applications.
• Suitable for load shedding and generation management schemes.
• Supports automatic restoration of disconnected loads after system recovery.
• Combines protection, automation, control and measurement in one relay.
• Can be integrated into both new and existing network control systems.
• Designed to minimise unwanted operation during abnormal network conditions.
• Logic functions support both simple and complex power management schemes.
• Helps improve power quality by supporting stable voltage and frequency control.

Applications

• Underfrequency load shedding schemes
• Overfrequency and abnormal frequency protection schemes
• Voltage supervision and voltage management applications
• Utility substations
• Industrial captive power systems
• Power system stability schemes
• Load restoration and demand management systems
• Network automation and control applications

Schneider Electric PowerLogic™ MiCOM P922 Voltage and Frequency Management Relay is suited for installations where system stability, controlled load management and reliable voltage/frequency supervision all need to work together within the same protection scheme.