The Fanox SIL-G Protection Relay is a zero export protection relay often used for solar PV embedded generation.

Protection functions available in SIL-G are the following:

  • 81R, 78, 81 U/O, 27P, 32/40, 59P, 59N, 25, 79, 50P, 50N/G, 67P, 67N, 46, 79, 50BF, 52, 49, 86,CLP, 49T, 74TCS, 37 and IRIG-B
  • Monitors differences in voltage magnitudes, phase angles, and frequencies to perform synchronism checks across the circuit breaker, can be coordinated with the auto-reclose function (up to five recloses)
  • Used with auxiliary power supply (110-230 Vac/ 90-300 Vdc and optionally 24-48 Vdc)
  • Two rear ports on the back for remote communication
  • Two communication protocols can be used simultaneously: MODBUS RTU and IEC 60870-5-103, IEC 61850, DNP 3.0 or IEC 60870-5-104

Physical Features:

  • Metallic box with high electromagnetic compatibility level (EMC) and wide range of operating temperatures
  • Direct signalling/control on both of the circuit breakers(52 function) and both of the reclosers (79 function)
  • Reduced size makes the SIL-G relay easy to install and its light weight helps the customer to save costs in transport
  • 8 configurable inputs and 7 configurable outputs
  • 2 Oscillographic records, 20 fault reports and non-volatile RAM memory: stores 1.000 events with date/time even without power supply thanks to its internal RTC