Purpose & Function

• Provides network and system protection (NS protection) for decentralized power generation systems
• Automatically disconnects the generator from the grid if voltage or frequency thresholds are exceeded

 Monitoring Capabilities

• Voltage: Phase and line-to-line
• Frequency: Continuous tracking
• Islanding Detection:
  • ROCOF (Rate of Change of Frequency)
  • Vector shift

 Display & Interface

• Backlit LC graphics display for real-time values and fault history
• RS-485 interface for data exchange and parameter setting
• Stores up to 300 fault events with timestamps

 Compliance & Standards

• Pre-configured for national grid codes:
  • VDE-AR-N 4105 & 4110 (Germany)
  • G99/G98 (UK)
  • CEI 0-21 (Italy)
• Supports protective disconnection and interface protection

 Installation & Configuration

• DIN rail or screw mounting
• Remote shutdown via ripple control signal receiver
• Password protection and sealable enclosure for secure settings

 Applications

• Ideal for:
  • Photovoltaic systems
  • Wind turbines
  • Hydroelectric and CHP plants
• Can be used as:
  • Central NS protection
  • Interface protection device