SIL-G Advance – Feeder & Generator Protection Relays

The SIL-G is a perfect protection relay for primary distribution which can protect a feeder by means of current, voltage and frequency functions.
It also has the advantage to provide 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.

Besides, It provides a complete protection working with auxiliary power supply 24-220 Vdc/48-230 Vac or in self-powered mode through the VTs (depending on model).

Integrating the synchronization capability into the generator protection relay through IRIG-B and SNTP optional and Arc Flash detection (AFD) with 4 AFD inputs and 4 high-speed outputs available depending on model provides the most reliable solution.

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 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-DSIL-ASIL-BSIL-GSIL-VSIL G NEW
TypeOC & EF FOR PRIMARY DISTRIBUTIONOC & EF FOR PRIMARY DISTRIBUTIONFEEDER PROTECTIONGENERATOR PROTECTIONGENERATOR PROTECTIONGENERATOR PROTECTION
Auxiliary Supply24-220 Vdc/48-230 Vac24-220 Vdc/48-230 Vac24–48Vdc
90-300Vdc/110-230Vac
24–48Vdc
90-300Vdc/110-230Vac
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
LPCT
Voltage measurementVTVTVT or directly from the lineDirectly to low power line
VT connection typeAdjustableAdjustable
5022222
50N/G22222
50/5111
50/51N/G1
67NI2
50/51/67N2222
50/51/67222
52111111
BF111111
491111
49T11111
79111111
461111
CLP11111
74TCS111111
Trip Block11
68 (Trip Bus)1
86
46BC
74CT1
Programmable LogicV3V3V1V1V3V3
371221
592222
59N2222
4711
272222
27V111
32/40444
81U/O4444
25111Optional
81R424
78211
IRIG-BOptional
Counters
Commands
Sett. Group443334
Inputs668868 / 16 / 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 / 7 + 4 HS-O
LEDs8 configurable8 configurable6 configurable6 configurable8 configurable8 configurable + 3 non-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
Event200200100010002002048
Fault Report2020202020100
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
IEC60870-5-103
IEC60870-5-104
DNP3.0 (TCP/IP)
IEC61850
ModBus RTU
IEC60870-5-103
IEC60870-5-104
DNP3.0 (TCP/IP)
IEC61850
ModBus RTU
IEC60870-5-103
IEC60870-5-104
DNP3.0 (TCP/IP)
IEC61850
ModBus RTU
IEC60870-5-103
IEC60870-5-104
DNP3.0 (TCP/IP)
IEC61850
ModBus RTU
IEC60870-5-103
IEC60870-5-104
DNP3.0 (TCP/IP)
IEC61850
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 198 mm

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