Robust and Reliable FEEDER & GENERATOR PROTECTION RELAY for Primary protection or backup of feeders with rigid neutral systems (directional protection).

The SIL-G is the perfect feeder protection relay with current, voltage, and frequency functions for primary and secondary distribution with an auxiliary power supply of 24230 Vdc/ac, 48-230 Vdc/ac, 24-48 Vdc or in self-powered mode through the VTs (depending on model).

Offers enhanced features, and flexible communicationshaving WIFI, allows the users to set and configure the relay through Fanox free software and to operate the relay without being present in the installation prioritizing the security. The oscillography is downloaded by a communications port. The SICom communications program allows the oscillography record to be downloaded and saved in COMTRADE format (IEEE C37.111-1991

Reliability and security with protection against islanding detecting wave changes based on its voltage and frequency protections and preventing severe damages thanks to out of step function.

Integrating the synchronization capability into the generator protection relay through IRIG-B, SNTP, and Arc Flash detection (AFD) with 4 AFD inputs and 4 high-speed outputs available depending on model provides the most reliable solution. Preventative maintenance, advanced communications and security, Grid interconnection (Renewable energy).

Main applications: Renewable energy facilities and 36 kV / 66kV / 132 kV substations.

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    The SIL-G is a perfect protection relay for primary distribution which can protect a feeder by means of current and voltage functions.

    • It also have the advantage that provided with the main functions to protect a generator protecting decoupling, load shedding and loss of main (islanding). It is normally used with a circuit breaker as cutting element.
    • SIL-G can work with auxiliary power supply 24-220 Vdc/48-230 Vac or in self-powered mode through the VTs (depending on model).
    • Capability of measuring up to 1.000 volts when it is connected directly to the low voltage line.
    • Protects decoupling, load shedding and loss of main (islanding). Loss of Mains (islanding) occurs when part of the public utility network loses connection with the rest of the system. If this situation is not detected, then the generator could remain connected, causing a safety hazard within the network. Automatic reconnection of the generator to the network may occur causing damage to the generator and the network. SIL-G protection relay detects this situation thanks to its voltage and frequency functions focused on the Rate of change of frequency (ROCOF) method.
    • Protection functions: 50 (2), 67/51/50 (4), 50N (1), 50G (1), 67N (2), 67G (2), 46, 46BC, 49, 37, 59 (2), 59N/G (2), 59L, 47, 27(2), 27V1, 27L, 32 (4), 81O/U (4), 81R (4), 78, CLP, SHB, 50BF, 79, 52, 86, 49T, 74CT,60, 74TCS. Optionally 25, 27L and 59L.
    • Arc Flash detection (AFD) with 4 AFD inputs and 4 high-speed outputs available depending on model.
    • 79 protection function (Recloser) allows up to 4 attempts of reclosing which can be programmed by the user.
    • SIL-G has metallic box with high electromagnetic compatibility level (EMC) and wide range of operating temperature.
    • Direct signaling/control of the circuit breaker (52 function), of the recloser (79 function) and the communications local/remote control.
    • To allow the communication locally, relays have a front USB port. Depending on model, WiFi local communication is available.
    • For remote communications several rear ports are available with the following protocols (depending on model):
      • Serial rear port RS485: Modbus RTU, DNP3.0 Serial or IEC 60870-5-103
      • Ethernet rear port RJ45: Modbus TCP/IP, DNP3.0 TCP/IP or IEC 61850
      • Fiber Optic: redundant communication (HSR – IEC 61850)
    • Alarms panel is available.
    • SIL-G is capable of displaying different measurements like:
      • Phase currents, neutral (measured and calculated), maximum current, positive sequence current and negative sequence current.
      • Second harmonic current per phase
      • Phase to neutral, phase to phase voltages, neutral voltage (calculated and measured), maximum voltage, phase B line voltage (optional for the model with ANSI 25), positive sequence voltage and negative sequence voltage.
      • Current angle for each phase and neutral (referred to VA). Voltage angle per each phase and neutral (referred to V-A). Phase B Line voltage angle (optional for the model with ANSI 25).
      • Active, reactive and apparent powers (3- phase and per phase)
      • Thermal image
      • Line frequency and busbar frequency
      • Rate of change of frequency
    • The SIL-G is provided with (depending on model):
      • 8 configurable inputs and 7 configurable outputs.
      • 16 configurable inputs and 11 configurable outputs.
    • Up to 100 oscillographic records and fault reports (1500 cycles in total considering the number of cycles configurable to 15, 30 or 60 cycles), load data profiling with up to 2160 records and 2048 events can be recorded in non-volatile RAM memory maintaining the date and time thanks to its internal RTC (Real Time Clock).
    • Synchronization through IRIG-B and SNTP optional depending on model.

    50 Phase instantaneous overcurrent
    50N Neutral instantaneous overcurrent
    50G Ground instantaneous overcurrent
    67 Inverse time directional phase overcurrent
    67N Inverse time directional neutral overcurrent
    67G Inverse time directional ground overcurrent
    46 Phase balance current
    46BC Broken conductor detection
    49 Thermal image
    37 Phase instantaneous overcurrent
    59 Instantaneous phase overvoltage
    59N Instantaneous neutral overvoltage (measured/calculated)
    59L Instantaneous line phase L overvoltage
    27 Instantaneous phase undervoltage
    27L Instantaneous line phase L undervoltage

    27V1 Positive sequence undervoltage
    47 Phase balance voltage
    32U/O Directional Power
    81U/O Under/Over frequency
    81R Rate of change of frequency (ROCOF)
    78 Vector shift (Out of step)
    CLP Cold Load Pick-up
    SHB Second harmonic blocking
    50BF Breaker failure monitoring
    79 Recloser
    52 Breaker wear monitoring
    86 Trip output lockout with PLC
    49T External trip
    74CT CT Supervision
    60 Voltage Circuit supervision
    74TCS Trip circuit supervision
    25 Synchro check
    AFD Arc Flash detection

    Communication Software for SIA & SIL Protection Relays

    The SICom PC software has been designed and programmed to gain access to all of Fanox relays information, to modify the settings and configuration, check states and measurements and to analyze and save events and fault reports using a graphic-friendly user interface.

    SICom software works with Windows® Windows 7, Windows 8, Windows 8.1, and Windows 10 operating system.

    • General data reading: Complete model, Version, Serial number, etc.
    • States reading
    • Measurements reading
    • Reading and changing settings
    • Reading and changing configuration
    • Reading and deleting events
    • Reading and deleting fault reports
    • Reading and deleting demand current (load data profiling)
    • Reading and saving oscillographic records in Comtrade format
    • Changing the user passwords
    • Saving and Loading settings files
    • Saving and Loading configuration files
    • Saving events and fault reports
    • Saving demand current (load data profiling)
    • Date-time synchronization
    • Configuring the communication parameters
    • Reading and changing counters
    • Commands for opening and closing the circuit breaker and block/unblock the recloser
    • Configuration of the inputs
    • Configuration of the outputs
    • Configuration of the causes that start a Fault Report

    The update of the software does not require any user´s action, this is, if the computer is connected to Internet, SICom updates itself when it is started.
    It will allow you to prepare all the settings and relay configurations without having the relay connected to the PC (offline mode), reducing engineering and commissioning time.
    SICom program uses Modbus protocol, so only the ports with this protocol can be used to establish the communication.

    Auxiliary Supply24-220 Vdc/48-230 Vac24-220 Vdc/48-230 Vac24–48Vdc
    24-220 Vdc/48-230 Vac24-220 Vdc/48-230 Vac
    Self-powered through the VTs
    Consumption3,3 – 4,5 W3,3 – 4,5 W3,3 – 5,5 W3,3 – 5,5 W3,3 – 5,5 W
    Current measurementStandard CT 0,5VAStandard CT 0,5VAStandard CT 0,5VAStandard CT 0,5VAStandard CT 0,5VA
    Voltage measurementVTVTVT or directly from the lineVT or Directly from the line
    VT connection typeAdjustableAdjustable
    Trip Block11
    68 (Trip Bus)11
    Programmable LogicV3V3V1V1V3V3
    Sett. Group443334
    Inputs668868 / 16 / 24 / 8 + 4 AFD
    Outputs2 NO + 2 NC – NO2 NO + 2 NC – NO2 NC – NO + 5 NO2 NC – NO + 5 NO2 NO + 2 NC – NO7 / 11 / 18 / 7 + 4 HS-O
    LEDs8 configurable8 configurable6 configurable6 configurable8 configurable11 configurable
    HMI20X2 LCD + 7 keys20X2 LCD + 7 keys20X2 LCD + 7 keys20X2 LCD + 7 keys20X2 LCD + 7 keys20X4 LCD + 13 keys
    52 & 79 HMI2 led’s + 3 keys2 led’s + 3 keys2 led’s + 3 keys2 led’s + 3 keys2 led’s + 3 keys2 led’s + 4 keys
    Fault Report2020202020Up to 100
    Oscillography5 records x 100 cycles5 records x 100 cycles2 records x 138 cycles2 records x 138 cycles5 records x 88 cycles100 records x 1500 cycles
    Current demand
    Local Port (frontal)RS232RS232USBUSBRS232USB
    Remote Port (rear)RS485 or EthernetRS485 or EthernetRS485 + RS485
    Ethernet + RS485
    RS485 + RS485
    Ethernet + RS485
    RS485 or EthernetRS485 or Ethernet or Fiber Optic
    Communications ProtocolsModBus RTU
    DNP3.0 (TCP/IP)
    ModBus RTU
    DNP3.0 (TCP/IP)
    ModBus RTU
    DNP3.0 (TCP/IP)
    ModBus RTU
    DNP3.0 (TCP/IP)
    ModBus RTU
    DNP3.0 (TCP/IP)
    Modbus RTU
    DNP3.0 Serial
    IEC 60870-5-103
    Modbus TCP/IP
    DNP3.0 TCP/IP
    IEC 61850
    Size of177 x 107 mm177 x 107 mm241,31 x 177,80 mm241,31 x 177,80 mm177 x 107 mm198 x 187 mm

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