The SIA-B is Dual & Self powered Overcurrent and Earth Fault Protection Relay
The SIA-B is Dual & Self powered Overcurrent and Earth Fault Protection Relay

Sıa-B Specific Ct's - Dual & Self-Powered Oc&Ef Protectıon Relays

This adaptation of the SIA-B relays offer reduced dimensions, making this relay easy to install, and its lightweight helps the customer to save costs in transport.

The protection relay offers the advantage in self-powered mode, SIA-B starts up from 0.4 times the minimum primary current of the CT (three-phase current).

SIA-B is suitable for RMUs, SF6 insulated, and compact switchgear in those installations where the space is critical, making the maintenance much more manageable.

USB front port connection (ModBus RTU protocol) for local communication. Remote communication through rear RS485 (ModBus RTU)

The relay is self-powered using the operating current through three specific current transformers fitted on the lines. These transformers are also used to obtain current measurements. Besides, SIA-B can be used with an auxiliary power supply (24-230Vac/dc). The relay can be also supplied by a USB cable connected to the laptop, with the USB KITCOM adapter or a standard power bank.

The SIA-B, Self-powered Protection Relays fits perfectly in EATON Xiria SF6Free medium voltage switchgear and requires minimal inspection, and maintenance leading to low operation costs.

Fanox SIA-B is a great addition to Xiria offering and creating more versatility for its growing customer base. This cooperation benefits the end-users. It can be used for more demanding applications; photovoltaic, windfarm, renewable energy.

The SIA-B is an OC&EF protection relay with self-powered and dual-powered (self-powering + auxiliary power) options.
• The relay is self-powered using the operating current through three specific current transformers fitted on the lines. These transformers are also used to obtain current measurements. Besides, SIA-B can be used with an auxiliary power supply (24-230Vac/dc). The relay can be also supplied by a USB cable connected to the laptop, with the USB KITCOM adapter or a standard power bank.
• Internal commissioning battery included (Lithium battery: 20 years lifetime), as optional.
• Metallic box with high electromagnetic compatibility level (EMC) and wide range of operating temperature.
• In self-powered mode, SIA-B starts-up from 0.4 times the minimum primary current of the CT (three-phase current).
• Test menu allows the trip circuit to be tested before the transformation centre is powered up.
• Bistable magnetic indicator (flag) which indicates the trip condition, maintaining its position even though the relay loses the supply.
• Self-diagnosis of the relay status (WATCHDOG) through a LED.
• Low power consumption.
• To allow communication, relays are provided with a local micro USB front port and with optional remote communication RS485 port (Modbus RTU protocol) on the rear side.
• The SIA-B is provided with a trip output for low power coil (24 Vdc – 135 mJ) and depending on the model, 1 external trip input and 2 configurable outputs.
• The SIA-B is provided with non-volatile RAM memory in order to store up to 100 events and disturbance fault recording (DFR – 4 fault reports in data format), maintaining date & time thanks to its internal RTC (Real Time Clock) even without power supply.
• The installation and subsequent maintenance of external batteries are eliminated. The operating costs of the centre are reduced.
• Its compact size makes SIA-B easy to install and its lightweight helps the customer to save costs in transport.

50 Instantaneous phase overcurrent

51 Inverse time overcurrent

51N Inverse time calculated neutral overcurrent

49T External trip

50N Instantaneous calcalated neutral overcurrent

49 Thermal image

49T External trip

PGC Programmable logic control

TB Trip Block for switch disconnector

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.

 

 SIA-B SPECIFIC CT'SSIA-B STANDARD CT'SSIA-C STANDARD CT'SSIA-F
TYPESELF & DUAL POWERED (SELF+AUX)SELF & DUAL POWERED (SELF+AUX)SELF & DUAL POWERED (SELF+AUX)AUXILIARY POWERED
Auxiliary Supply24-230 Vac/dc24-230 Vac/dc24Vdc230Vac48 Vdc110-230 Vac/Vdc24-220 Vcc / 48-230 Vac
Self Power SupplyI > 0,35 x Is min (x3)0,075 In (x3)0,1 In (x3) 
External batteryUSB cable / Power bankUSB cable / Power bankKITCOMUSB cable / Power bank
Internal battery√ (*)√ (*) 
Consumption0,5 W1,5 W0,5 W1,5 – 2,2 W
CTSpecific CTStandard CT/1A - 2VAStandard CT/1A - 2.5VA Standard CT/5A - 5VAStandard CT/1 - 0,5VA Standard CT/5A - 0.5VA
501221
50G 221
50N1   
511111
51G 111
51N1   
SHB111 
74CT  1 
46BC  1 
46 11 
79  1 
52 111
50BF 111
491111
49T1111
CLP 111
74TCS  1 
Trip Block11 1
68 Zone Selection interbloking 111
86 
PGCProgrammable LogicV3V3V3V3
Counters 
Commands
Sett. Group243/43
Inputs--- EXT.TRIP3 DI--- EXT.TRIP 2DI 2DI + EXT.TRIP--- 2DI
Outputs--- 2NC-NO3 NC-NO--- 2 NC-NO 3 NO1 NO + 2 NC-NO
Output for STRIKER24 Vdc – 135 mJ24 Vdc – 135 mJ24 Vdc – 135 mJ 
LEDs2 LEDs 2 LEDs +1MAG.FLAG4 LEDs3 LEDs + 1 MAG.FLAGS 3 LEDs + 3 MAG.FLAGS3 LEDs configurable
HMI20x2 LCD + 7/8 keys20x2 LCD + 8 keys20x2 LCD + 7/8 keys20x2 LCD + 7 keys
Event10010241024200
Fault Report420204
Oscillography 10 records x 50 cycles10 records x 50 cycles1 record x 22 cycles
Current demand  
Local Port (frontal)Micro USBMicro USBRS232 Micro USBMicro USB
Remote Port (rear)RS485RS485RS485RS485
Communications ProtocolsModBus RTUModBus RTU ModBus RTU or DNP3.0ModBus RTU ModBus RTU or IEC60870-5-103ModBus RTU DNP3.0
Size of (HxW)Vertical: 120,65 x 167,80 mmHorizontal: 185,80 x 102,7 mm90 x 245 mmVertical Compact: 177 x 155 mmVertical Standard: 177 x 189 mmHorizontal: 177,8 x 290,3 mm167,80 x 120,65 mm

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