A23R

Features:

The A23R is a multifunction protection and control system for transformer protection, specifically designed for Scott-connected or V-connected single-phase traction transformers.
It includes differential protection, harmonic blocking, and programmable inputs/outputs with 16 dual-color LEDs for indication.
The relay offers event, fault, and disturbance recording, SCADA communication, and supports IEC60870-5-103 & IEC61850 protocols.
It features Ethernet and RS485 ports for communication, along with a user-friendly interface and large LCD display.
The A23R also includes online/offline settings, disturbance analysis, and relay testing support.

A21R