Feeder protection relay SIR-C

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SIR-C Overhead Control I Feeder Protection The SIR-C is an Overhead Control / RTU 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 Capacitive and Resistive Low-power Voltage Sensors (LEA): 4 current and 6 voltage channels. Control Capabilities: Enables signaling/control of the circuit breaker (function 52) and the recloser (function 79). User-Friendly Interface: Equipped with a user-friendly navigation keypad with programmable hotkeys and LEDs for various functions. Allows communications: rear port (RS485 for serial and RJ45 for ethernet interface) and front port through a micro USB connector. Multiple industrial protocols: DNP3.0 and Modbus RTU, IEC60870-5-103, IEC60870-5-104, IEC61850. Clears fault quickly through the SOTF (Switch On To Fault) function. Non-volatile RAM memory in order to store up to 3072 events and disturbance fault recording (DFR), maintaining date & time thanks to its internal RTC (real Time Clock). Oscillography: contains 10 analogue channels and up to 96 configurable digital channels, which can be downloaded and saved in COMTRADE format (IEEE C37.111-1991) using the SICom Communications Software.