Overhead Control / Feeder Protection Relay
The SIR-C is the right solution for recloser control and feeder protection relay with current, voltage, and frequency functions for primary and secondary distribution with an auxiliary power supply of 24-230 Vdc/ac.
With the ability to measure voltage through capacitive or resistive sensors (LEAs) it has 4 current channels and up to 6 voltage channels.
The SIR-C provides complete protection for industrial and utility feeder protection, with flexible protection capabilities, including Inverse Time Directional* Phase Overcurrent, Instantaneous calculated and measured neutral overcurrent, Inverse Time Directional* Calculated and Measured Neutral Overcurrent, auto reclosing, Phase Balance voltage protection (Bus bar and Line), frequency, second-and Second Harmonic Blocking, optional low-energy analog (LEA) voltage inputs, IEC cable/line thermal element, islanding detection, and much more.
Relay is provided with a frontal micro USB port to communicate with our own Software and rear serial or ethernet ports RS485/RJ45 enabling communication with other integrated systems through, IEC 60870 – 5 – 103/104, Modbus, DNP3.
The oscillography is downloaded by a communications port. The Fanox SICom communications program allows the oscillography record to be downloaded and saved in COMTRADE format (IEEE C37.111-1991).