SIA-B Standard CT’s, Reliable Technology in Protection Solutions.

Advanced OC&EF Self-Powered Protection Relay

SIA B with Standard CT’s, is an overcurrent protection relay with self powered and dual powered (Self-powering + Auxiliary power) options.

Impeccably suited for protection and distribution systems, with minimal space requirement SIA-B compact relay provide a comprehensive range of functions in a amazingly compact and space-saving housing.

The real advantage is that the installation and subsequent maintenance of external batteries is eliminated. The innovative relay is Self powered using the operating current through three /1 (<2VA) standard current transformers fitted on the lines. These transformers are also used to obtain current measurements. Besides, SIA-B Relay can be used with auxiliary power supply (24-230 Vac/dc). The operating costs of the centre are really reduced.

SIA-B Standard CT’s Protection Relay offering a high performance previously available only in relays with Vaux:

Remote communications for SCADA (Modbus or DNP3.0 protocols).
Up to 10 COMTRADE records.
Advanced functions.
Completely configurable I/O thanks to advanced logic.

Ultra-fast SOTF
Very low start-up levels and minimum consumption <2 VA
Compact design

Protect your installation with the highest precision thanks to oscillographic records plus extra events and fault records, requiring minimum current levels for the relay to start.

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English / Data Sheet SIA-B Standard CT's_R01.pdf

Save Money using ONE Self-powered Relay for TWO Applications

A relay with different settings for normal operation and maintenance tasks is a requirement that is gaining more and more importance not only to speed up the process, but also to comply with newer an severer safety procedures.

So far, 2 relays, one for each application, are installed, but this solution is not practical considering the compact sizes of the RMUs and the importance of finding economic solutions for this purpose.

Fanox SIAB relay is provided with 4 separated settings groups that will allow the user to set different settings depending on the application. The relay is provided with configurable inputs that are activated without external supply. By activating the corresponding inputs the relay will change automatically to the desired group . In addition, if configurable LEDs are used to indicate the settings group that the relay is working with.

SIA-B relay becomes the best and more reliable solution to save money, to facilitate the settings process and to offer the best protection even when auxiliary supply is not available.

Features

Dual & Self powered OC&EF protection relay (with universal auxiliary voltage) using the operating current through /1 standard CTs.
With LOAD DATA PROFILING (current demand).
Stores up to 1024 events and DFR (20 fault reports in data format and 10 reports in COMTRADE format) in non-volatile RAM memory.
Configurable inputs, outputs and leds thanks to Programmable Logic Control (PGC).
Test menu allows the trip circuit to be tested before the transformation center is powered up.
With LEDs maintaining their position even though the relay loses the supply.
Self diagnosis of the status (WATCHDOG) through leds and physical outputs.
Internal Commissioning battery. (Lithium battery: 20 years lifetime).
High electomagnetic compatibility.
Low power consumption.
In Self powered mode, SIA-B starts-up from 75 mA (in secondary) in three phase system/160 mA (in secondary) in single phase system.
Micro USB front port connection (ModBus RTU protocol) for local communication. Remote communication through rear RS485 (ModBus RTU or DNP 3.0 selectable by general setting).

Ansi Code Functions

50 Instantaneous phase overcurrent

51 Inverse time overcurrent

49T External trip

51G Inverse time measured neutral overcurrent

50G Instantaneous measured neutral overcurrent

46 Phase balance current protection

49 Thermal overload

SHB Second Harmonic Blocking

CLP Cold Load Pickup

52 Breaker wear monitoring

50BF Circuit Breaker Failure

68 Zone selection interlocking

PGC Programmable logic control

TB Trip Block for switch disconnector

Documents

Software

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.

Accesories

Striker – PRT

This is a single effect solenoid. The striker is spring operated.
The striker is activated by low-power polarised electrical signal supplied by the relay in case of a fault.
The striker is reset to its starting position manually.

Auxiliary Battery Power Supply – KITCOM

The KitCom is an adapter to supply SIA relays through the front communication port, allowing the communication with the computer simultaneously.
This adapter is very useful in the commissioning processes of the transformation centres, allowing full verification of the centre, without any auxiliary power supply.
The equipment has a microswitch that feeds the power supply with a LED (ON) when the voltage is adequate.
In addition to all the necessary to give the power supply, this device has two LED associated with the Rx and Tx lines of communication, and they are used to verify that there is data traffic between the PC and the SIA relay.

Application

Comparison Table

SIA RANGE	SIA-B Specific CT's	SIA-B Standard CT's	SIA-C Standard CT's	SIA-F
TYPE	SELF & DUAL POWERED (SELF+AUX)	SELF & DUAL POWERED (SELF+AUX)	SELF & DUAL POWERED (SELF+AUX)	AUXILIARY POWERED
Auxiliary Supply	24Vdc 110Vac 230Vac	24-230 Vac/dc	24Vdc 230Vac 48 Vdc 110-230 Vac/Vdc	24-220 Vcc / 48-230 Vac
Self Power Supply	3.2 A for CT08-5 6.4 A for CT16-5 12.8 A for CT32-5 25.6 A for CT64-5 51.2 A for CT128/5 102.4 A for CT256/5 (x3)	0,075 In (x3)	0,1 In (x3)
External battery	USB cable / Power bank	USB cable / Power bank	KITCOM	USB cable / Power bank
Internal battery	√ (*)	√	√ (*)
Consumption	0,5 W	1,5 W	0,5 W	1,5 – 2,2 W
CT	Specific CT	Standard CT/1A - 2VA	Standard CT/1A - 2.5VA Standard CT/5A - 5VA	Standard CT/1 - 0,5VA Standard CT/5A - 0.5VA
50	1	2	2	1
50G		2	2	1
50N	1
51	1	1	1	1
51G		1	1	1
51N	1
SHB		1	1
74CT			1
46BC			1
46		1	1
79			1
52		1	1	1
50BF		1	1	1
49	1	1	1	1
49T	1	1	1	1
CLP		1	1	1
74TCS			1
Trip Block	1	1		1
68 Zone Selection interbloking		1	1	1
86		√	√	√
PGCProgrammable Logic	V3	V3	V3	V3
Counters		√	√	√
Commands		√	√	√
Sett. Group	2	4	3/4	3
Inputs	--- EXT.TRIP	3 DI	--- EXT.TRIP 2DI 2DI + EXT.TRIP	--- 2DI
Outputs	--- 2NC-NO	3 NC-NO	--- 2 NC-NO 3 NO	1 NO + 1 NC-NO
Output for STRIKER	24 Vdc – 135 mJ	24 Vdc – 135 mJ	24 Vdc – 135 mJ
LEDs	2 LEDs 2 LEDs +1MAG.FLAG	4 LEDs	3 LEDs + 1 MAG.FLAGS 3 LEDs + 3 MAG.FLAGS	3 LEDs configurable
HMI	20X2 LCD + 7/8 keys	20X2 LCD + 8 keys	20X2 LCD + 7/8 keys	20X2 LCD + 7 keys
Event	100	1024	1024	200
Fault Report	4	20	20	4
Oscillography		10 records x 50 cycles	10 records x 50 cycles	1 record x 22 cycles
Current demand		√	√
Local Port (frontal)	USB	Micro USB	RS232	USB
Remote Port (rear)	RS485	RS485	RS485	RS485
Communications Protocols	ModBus RTU	ModBus RTU ModBus RTU or DNP3.0	ModBus RTU ModBus RTU or IEC60870-5-103	ModBus RTU DNP3.0
Size of (HxW)	Vertical: 120,65 x 167,80 mm Horizontal: 185,80 x 102,7 mm	90 X 245 mm	Vertical Compact: 177 x 155 mm Vertical Standard: 177 x 189 mm Horizontal: 177,8 x 290,3 mm	167,80 x 120,65 mm

Product quality is something we take very seriously and reliable testing is a key point.

We have expanded our testing capabilities to cope with new developments of protective relays and higher demand for our products.

The additional functions required by our customers imply longer and more complex testing procedures.

Multiple options for powering and communication

Related Products

SIA-B Specific CT’s
Dual & Self-Powered Protection Relays

Specific CTs

Fanox SIA-B Specific CT’s is a powerfull solution for overcurrent protection. This relayis the perfect choice if you look for a competitive and complete solution composed by relay + CTs for overcurrent protection while having all functions required for a maximum safety.

Protection functions:

50 + 50/51 + 50N + 50/51N.
49 + 49T + TB as additional protection functions.

SIA-C
Dual & Self-powered Protection Relays

Standard /1 or /5 CTs

Fanox SIA-C possibility of working with both /1 and /5 standard CTs makes it our safest choice for Overcurrent and Earth Fault Protection. Different sizes and models besides being withdrawable and Self-Powered makes the installation and maintenance much easier and simple. It also allows you to adapt some monitoring and auto-recloser functions in order to have some extra control and wider protection.