Protection
Relays

This product is a protection and control relay designed for primary and secondary distribution networks, suitable for feeder, generator, and renewable energy applications (such as wind farms and photovoltaic plants). It offers advanced protection, control, and monitoring features, ensuring reliable operation in medium voltage (MV) switchgear and substations. The relay is available in multiple models to meet diverse customer requirements and installation needs.

Key Features and Advantages:

1. Comprehensive Protection Functions:
– Overcurrent and Earth Fault Protection: Provides reliable protection for feeders and generators, including directional earth fault protection and ground overvoltage protection.
– Switch-On-To-Fault (SOTF) Function: Quickly clears faults that occur when a circuit breaker is manually closed, preventing damage to equipment.
– Arc Flash Detection (AFD): Includes sensors and a dedicated module for detecting and mitigating arc flash incidents, enhancing safety.
– Island Protection: Identifies grid disturbances using voltage, frequency, and vector jump detection, coordinated with active and reactive power control to protect generators.

2. Advanced Control and Automation:
– Programmable Logic (PGC): Enables custom configuration of inputs and outputs for zone selection interlocking (ZSI), circuit breaker control (52 function), and recloser operation (79 function).
– IEC 61850 Compliance: Supports both Edition 1 and 2, including GOOSE messaging for substation automation and control. Compatible with HSR and PRP redundancy networks for high reliability.
– Time Synchronization: Uses SNTP or IRIG-B protocols for accurate time synchronization across the network.

3. Flexible Communication Options:
– Multiple industrial protocols supported, including DNP3, Modbus (serial and TCP), IEC 60870-5-103, and IEC 60870-5-104.
– Rear ports include RS485 (serial) and RJ45 (Ethernet), while a front micro USB connector allows easy access for configuration and monitoring.
– Wi-Fi Connectivity: Secure Wi-Fi with WPA2-AES encryption enables remote operation and monitoring, reducing risks for engineers and technicians.

4. User-Friendly Design:
– Intuitive interface for easy handling and configuration.
– Compact design reduces space requirements and installation time, lowering operational and maintenance costs.
– Wide auxiliary supply range (24–230 V DC/AC), making it adaptable to various voltage levels.

5. Certification and Reliability:
– Successfully tested and certified by independent laboratories (e.g., KEMA), ensuring high quality and reliability.
– Suitable for utility companies, industrial systems, and renewable energy applications.

Applications:

– Feeder Protection: Overcurrent, earth fault, and directional protection for MV switchgear.
– Generator Protection: Island detection, vector jump protection, and active/reactive power control.
– Renewable Energy: Ideal for wind farms, solar plants, and other renewable installations.
– Substation Automation: Supports IEC 61850 for seamless integration into modern substation systems.

This protection and control relay is a versatile, reliable, and secure solution for modern power distribution networks, combining advanced technology with user-friendly operation and robust safety features.