The SIL-A Advanced is an efficient Feeder Protection Relay with reliable Overcurrent and Earth fault Protection for Primary and Secondary Distribution, particularly suitable for MV switchgear.

Fanox has used the latest hardware technology to develop SIL-A Advanced, and it is available in several models according to customer requirements and installation needs. This solution is mainly indicated for installations such as wind farms o photovoltaic panels plants (Renewables).

SIL-A has a design that requires less equipment and space, reducing operating costs and maintenance. The optimal design makes the device’s useful life longer and enhanced safety by reducing hazards and saving installation time.

The SIL-A has the function of direct signalling/control of the circuit breaker (52 function) and the recloser (79 function), zone selection interlocking – ZSI (68 function) is available through configurable inputs and outputs thanks to the programmable logic (PGC). The Relay offers optional directional earth fault (isolated neutral included) and ground overvoltage protection. In case a CB is manually closed, a switch on to an existing fault may occur. This fault condition is critical if the overcurrent protection function does not clear the fault until the adjusted time delay is finished. It is necessary, in those cases, to clear the fault quickly by means of SOTF function.

Intuitive for easy handling use, SIL-A has flexible communication options for rear (RS485 for serial and RJ45 for ethernet interface) and frontal port through a micro USB connector.

In terms of rear ports, SILA is able to manage multiple industrial protocols:

  • DNP3 and Modbus (both serial or TCP versions)
  • IEC60870-5-103
  • IEC60870-5-104
  • IEC61850.
    All these combinations are selectable by model or general settings.

SIL-A Advanced has performed a complete set of type tests in Kema Laboratories (The Netherlands). This independent certification gives our customers higher quality and reliability assurance.

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    The SIL-A is a feeder relay with overcurrent and earth fault protection for primary and secondary distribution with auxiliary power supply 24-230 Vac/dc. The current measurement is obtained by standard current transformers /1 or /5.

    • Metallic box with high electromagnetic compatibility level (EMC) and a wide range of operating temperatures.
    • Direct signalling/control of the circuit breaker (52 function) and the recloser (79 function).
    • Zone selection interlocking – ZSI (68 function) is available through configurable inputs and outputs thanks to the programmable logic (PGC).
    • In case a CB is manually closed, a switch on to an existing fault may occur. This fault condition is critical if the overcurrent protection function does not clear the fault until the adjusted time delay is finished. It is necessary, in those cases, to clear the fault quickly using SOTF function.
    • To allow the communication, relays are provided with a local micro USB front port and with remote communication with different options (ports and protocols) on the rear side:
      • 1 RS485 Port: IEC60870-5-103, Modbus RTU or DNP3.0 Serial (selectable by general settings).
      • 1RS485 Port: IEC60870-5-103, Modbus RTU or DNP3.0 Serial (selectable by general settings) + 1 RJ45 Port: Modbus TCP/IP or IEC60870-5-104 (selectable by general settings).
      • 1 RS485 Port: IEC60870-5-103, Modbus RTU or DNP3.0 Serial (selectable by general settings) 1 RJ45 Port: IEC61850
    • The SIL-A has up to 6 configurable inputs and up to 6 configurable outputs (depending on model).
    • SIL-A is fitted with the demand of current (Load Data Profiling) with the following characteristics:
    • The number of records: 744.
    • Recording mode circular.
    • Sampling rate (interval): configurable through communications (1-60 min).
    • SIL-A is provided with non-volatile RAM memory in order to store up to 2048 events and configurable number of disturbance fault recording (DFR), maintaining date & time thanks to its internal RTC (real Time Clock):
    • 5 records in data and COMTRADE format (260 cycles each record): 1 to 8 pre-fault cycles + 252 to 259 postfault cycles.
    • 25 records in data and COMTRADE format (60 cycles each record): 1 to 8 pre-fault cycles + 52 to 59 postfault cycles.
    • 50 records in data and COMTRADE format (30 cycles each record): 1 to 8 pre-fault cycles + 22 to 29 postfault cycles.
    • 100 records in data and COMTRADE format (15 cycles each record): 1 to 8 pre-fault cycles + 7 to 14 postfault cycles.),
    • 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).

    SIL-A Advanced Modelos (A/D)

    50 Instantaneous phase overcurrent
    51 Inverse time phase overcurrent
    50N Instantaneous calculated neutral overcurrent
    50G Instantaneous measured neutral overcurrent
    51N Inverse time calculated neutral overcurrent
    51G Inverse time measured neutral overcurrent
    67G/51G Inverse Time Directional* Measured Neutral Overcurrent
    67NI Inverse time directional isolated calculated neutral overcurrent
    67GI Inverse time directional isolated measured neutral overcurrent
    SOTF Switch On To Fault
    46 Phase balance current protection
    46BC Broken Conductor Detection
    64REF Restricted earth fault
    37 Instantaneous phase undercurrent
    49 Thermal overload
    49T External Trip
    SHB Second Harmonic Blocking
    52 Breaker Wear Monitoring
    50BF Circuit breaker failure
    74TCS Trip Circuit Supervision
    79 AC Reclosing device
    CLP Cold Load Pickup
    60CTS Phase CT Supervision
    59G Instantaneous measured neutral overvoltage
    86 Trip lockout
    68 Zone selection interlocking (ZSI)
    TB Trip block for switch disconnector
    PGC Programmable logic control
    * ANSI 67G can be converted into ANSI 51G by setting the “Directionality” parameter to NO

    Aditional Functions

    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 analyse and save events and fault reports using a graphic-friendly user interface.

    SICom software works with the 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.

    SIL RANGESIL-ASIL-VSIL G
    TypeFEEDER PROTECTION RELAY / OVERCURRENT AND EARTH FAULT PROTECTIONVOLTAGE PROTECTION RELAYFEEDER AND GENERATOR PROTECTION WITH CURRENT, VOLTAGE AND FREQUENCY FUNCTIONS
    Auxiliary Supply24-230 Vdc/Vac24-220 Vdc/48-230 Vac24-220 Vdc/48-230 Vac
    Self-powered through the VTs
    Consumption3,3 – 4,5 W3,3 – 5,5 W24-48 Vdc and 48-230 Vac/dc < 10VA. 24-230Vac/dc <20VA
    Current measurementStandard CT <0,5VAn/aStandard CT 0,5VA
    LPCTn/an/an/a
    Voltage measurementn/aVT or directly from the lineVT or Directly to the low voltage line
    VT connection typen/aSettableAdjustable
    502n/a2
    50G2n/a1
    50N2n/a1
    50/512n/a4 levels of 67*
    50/51G2n/a2 levels of 67G*
    50/51N2n/a2 levels of 67N*
    67GI1n/an/a
    67NI1n/an/a
    50/51/67G 1n/a*
    50/51/67n/an/a*
    SOFT1n/a1
    64REF1n/an/a
    521n/a1
    BF111
    491n/a1
    49T111
    79111
    461n/a1
    CLP1n/a1
    74TCS111
    Trip Block1n/a
    68 (Trip Bus)111
    86
    46BCn/a1
    60CTS 1n/a
    60VTS1
    Programmable LogicV3V3
    371n/a1
    59n/a22
    59N122
    47n/a11
    27n/a22
    27V1n/a11
    32/40n/an/a4
    81U/On/a44
    25n/a11
    59Ln/a1
    27Ln/a1
    81Rn/a24
    78n/a11
    IRIG-Bn/an/aOptional
    Counters
    Commands
    Sett. Group434
    Inputs668 / 16 / 24 / 8 + 4 AFD
    Outputs747 / 11 / 18 / 7 + 4 HS-O
    LEDs8 configurable8 configurable11 configurable
    HMI20X2 LCD + 7 keys20X2 LCD + 7 keys20X4 LCD + 13 keys
    52 & 79 HMI2 led’s + 4 keys2 led’s + 3 keys2 led’s + 4 keys
    Event20482003072
    Fault Report2020Configurable up to 100
    OscillographyConfigurable, from 5 to 100 records5 records x 88 cyclesConfigurable up to 100
    Current demandn/a
    Local Port (frontal)USB RS232USB
    Remote Port (rear)RS485 or EthernetRS485 or EthernetRS485 or Ethernet or Fiber Optic
    Communications ProtocolsRS 485 (ModBus RTU or IEC60870-5-103 or DNP3.0) RJ45 (Modbus TCP or DNP3 TCP or IEC 60870-5-104) or RJ45 (IEC61850) + SNTP protocolRS485(ModBus RTUor IEC60870-5-103) RJ45 (Dnp3 TCP) RJ45(IEC 61850) RJ45 (IEC60870-5-104)RS485(Modbus RTU or DNP3.0 Serial or IEC 60870-5-103) RJ45(Modbus TCP/IP DNP3.0 TCP/IP) RJ45( IEC 61850) FO-LC(IEC61850)
    Size of177 x 107 mm177 x 107 mm198 x 187 mm

    Related Products

    SIA-F
    SF6 & METAL-CLAD SWITCHGEAR PROTECTION RELAYS

    Fanox SIA-F is our most competitive and cost-effective solution for overcurrent and earth-fault protection. Like all other Fanox protection relays the compact size with reduced depth makes it easier to install and saves costs.

    The relay can be also supplied by a USB cable connected to the laptop, with the USB KITCOM adapter or a standard power bank. To allow the communication, relays are provided with a local micro USB front port and with remote communication with different protocols on the rear side depending on model.

    Additionally, the use of external CTs allows you to modify their relation adapting to your requirements and reducing installation costs while having a wider range of power supply.

    Ansi Code Functions

    50, 51, 50G, 50N, 49, 52, 50BF, 86, 68,TB, PGC
    Aditional Functions:
    CNT, RTC, PGC, HMI, SER, DFR, LDP, MET, STTG, CMMD