AEGIS - Multifunction Relay Platform

The AEGIS range of multifunction relay platform provides cost-effective, integrated Numerical Protection, Control, Monitoring & Measuring with Communication functionality. The platform has state-of-the-art technology which ensures superior performance. The multifunction capability of AEGIS finds application as main or backup protection in almost every area of power system protection.

Protection Function

• Directional/Non-Directional Over Current Protection.
• Directional/Non-Directional Measured ground fault Protection.
• Under/Over Voltage Protection.
• Neutral Voltage Displacement Protection Negative Sequence Over Current Protection.
• Cold Load Pick-up & Inrush restraint (68).
• Circuit Breaker Failure Protection.

• Self Monitoring
• Graphic LCD (160*160 dots) to view/change settings, view events, and analog information.
• 1A & 5A CT inputs in the same relay.
• Wide range of site selectable universal operating time curve (IEC & IEEE) or user-defined curve.
• Wide range of Auxiliary Supply
• Expandable Input/Output Modules.
• Outputs configurable to Self/Manual reset.
• Multi-level password protection.
• Four Independent setting groups.
• User-friendly setting and disturbance record analysis software.
• Programmable alarm/trip indication LEDs with text legend

Communication Feature

• Front USB port for local Communication.
• Rear Port: RS485 serial port for remote communication.
• Two optional RJ45/Fiber optic Ethernet ports for remote networking.
• The relay supports open protocols of MODBUS, RTU, IEC60870-5-1O3 & IEC 61850

Feeder Protection

• Comprehensive protection for distribution feeders.
• Main or backup protection on MV&HV systems
• Capacitor banks and reactors protection are based on the neutral current and Residual voltage detection principle.

Motor Protection Relay

• Wide range of protection for a synchronous motor.
• Medium size and large size rotating machines.

Transformer Protection Relay

• Differential protection with dual slope characteristics is used for the protection of two winding distribution power transformers.
• Protection of two winding distribution power transformers.
• Other than differential remaining protections can be used as backup protection.
• Other than differential remaining protections can be used as backup protection.