NUMERICAL RELAYS

OVERVIEW

Cost effective Intelligent Electronic Devices (IEDs) with modern technology; Integrated with protection, control and automation functions in single device. Unique IED with embedded red box providing gateway between PRP and HSR topology not offered by other manufacturers. 

• User defined configurations and setting parameters with events and disturbance recording functions
• Analogue input card is built with Electronic Voltage and Current transformer instead of Electromagnetic for high accuracy and linear Characteristics
• Complies with IEC, EN and BIS standards
• Communication protocols and interfaces meet IEC 61850 edition 2
• Compact housing enables fast installation and Commissioning
• Input Output expansion by I/O Peripheral Cards
• Protection include Distance, Line Differential, Transformer Differential, Busbar,  Differential (centralised/ decentralised), Overcurrent/Earth Fault Backup, Voltage/Frequency, Motor, in Transmission lines\Bus bars\ Transformers\Reactors\Motors\Bay Control Unit  
• Proven anti-islanding feature for Solar and Wind Generators
• Vector Shift protection default for Voltage input devices
• Arc Protection feature default for all devices
• Meets SCADA Communication protocols IEC 61850 ed1/ed2, IEC 60870-103/ IEC 60870-104, Modbus-RTU, Modbus-TCP
• Meets process level communication protocol IEC 61850-9.2LE and IEC 61850 edition 2 with zero recovery time as per IEC 62439-3 at process level
• Meets station level communication protocol IEC 61850 edition 2 with zero recovery time as per IEC 62439-3 at station level

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