FANOX SIA-B Series User manual

EN_FANOXTD_MANU_SIA_Ocefsecondarydist_SIAB-STANDARD-CT_R007.Docx
USER´S MANUAL
SIA-B Standard CT´s
Self & Dual Powered
Overcurrent & Earth Fault
Protection Relay

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1. RECEPTION, HANDLING & INSTALLATION .......................................................................... 5
1.1. Unpacking ................................................................................................................................. 5
1.2. Reception of relays .................................................................................................................. 5
1.3. Handling electronic relay......................................................................................................... 5
1.4. Installation, commissioning and service............................................................................... 6
1.5. Storage ...................................................................................................................................... 6
1.6. Recycling................................................................................................................................... 6
2. DIMENSIONS AND CONNECTION DIAGRAMS...................................................................... 7
2.1. Front view.................................................................................................................................. 7
2.2. Case dimensions...................................................................................................................... 7
2.3. Striker dimensions ................................................................................................................... 8
2.3.1. PRT-15................................................................................................................................... 8
2.3.2. PRT........................................................................................................................................ 9
2.4. Connection diagram............................................................................................................... 10
2.5. Terminals................................................................................................................................. 11
3. DESCRIPTION......................................................................................................................... 12
3.1. Introduction............................................................................................................................. 12
3.2. Relay description.................................................................................................................... 12
3.3. Functional Diagram................................................................................................................ 15
3.4. Selection & Ordering codes .................................................................................................. 16
3.5. Phase CT and neutral CT selection ...................................................................................... 17
3.5.1. Load curve for SIA-B relay................................................................................................ 17
3.5.2. Burden curve for SIA-B relay............................................................................................ 18
3.5.3. Impedance curve for SIA-B relay...................................................................................... 18
4. PROTECTION FUNCTIONS.................................................................................................... 19
4.1. General settings ..................................................................................................................... 19
4.2. Function SHB. Second Harmonic Blocking......................................................................... 20
4.3. Function 50. Instantaneous phase overcurrent .................................................................. 20
4.4. Function 50/51. Inverse time phase overcurrent................................................................. 21
4.5. Function 50G. Instantaneous neutral overcurrent.............................................................. 21
4.6. Function 50/51G. Inverse time neutral overcurrent ............................................................ 22
4.7. Function 49. Thermal Image Protection............................................................................... 23
4.8. Function 52. Circuit Breaker monitoring.............................................................................. 26
4.8.1. Circuit Breaker opening and closing commands........................................................... 29
4.8.2. Counter to register the number of openings................................................................... 29
4.8.3. Accumulated amps counter: I2t ....................................................................................... 29
4.8.4. Maximum openings in a time window.............................................................................. 29
4.9. Function TB. Trip block protection for the switchgear ...................................................... 30
4.10. Function 46. Negative sequence inverse time overcurrent. .............................................. 30

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4.11. Function 50BF. Breaker Failure monitoring ........................................................................ 31
4.12. Function CLP. Cold Load Pickup.......................................................................................... 32
4.13. Function 49T. External trip.................................................................................................... 33
4.14. Settings Groups...................................................................................................................... 33
4.15. IEC60255-151 Curves ............................................................................................................. 34
4.16. IEEE Curves ............................................................................................................................ 39
5. MONITORING AND CONTROL .............................................................................................. 43
5.1. Measurements ........................................................................................................................ 43
5.2. Load data profiling ................................................................................................................. 43
5.3. Counters.................................................................................................................................. 43
5.4. States and Events................................................................................................................... 44
5.5. Date and Time by Real Time Clock (RTC)............................................................................ 50
5.6. Self-diagnosis......................................................................................................................... 50
5.7. Disturbance Fault Recording ................................................................................................ 51
5.8. Configurable Inputs................................................................................................................ 55
5.9. Digital Outputs........................................................................................................................ 55
5.10. Programmable Logic Control................................................................................................ 56
5.10.1. Outputs................................................................................................................................ 56
5.10.2. Leds..................................................................................................................................... 58
5.11. Commands.............................................................................................................................. 61
5.12. Test Menu................................................................................................................................ 61
5.13. Power supply .......................................................................................................................... 62
5.13.1. Self-Powered relay with standard current transformers................................................ 62
5.13.2. 24-230 Vac, 50/60 Hz auxiliary power............................................................................... 62
5.13.3. 24-230 Vdc auxiliary power supply .................................................................................. 62
5.13.4. Battery power: 5 V, with a KITCOM adaptor.................................................................... 63
5.13.5. Commissioning battery ..................................................................................................... 63
5.14. Switch on to fault (SOTF) characteristic.............................................................................. 67
5.15. Opening mechanism: STRIKER............................................................................................ 69
6. TECHNICAL SPECIFICATIONS AND STANDARDS............................................................. 71
6.1. Technical Specifications ....................................................................................................... 71
6.2. Thermal resistance................................................................................................................. 75
6.3. Standards................................................................................................................................ 76
7. COMMUNICATION AND HMI.................................................................................................. 78
7.1. Front Communication: USB .................................................................................................. 78
7.2. Rear communication: RS485................................................................................................. 78
7.3. LED indicators ........................................................................................................................ 79
7.4. LCD and keypad ..................................................................................................................... 79
7.5. SICom Communications program ........................................................................................ 79

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7.5.1. How to install SICOM Software......................................................................................... 80
7.6. Setting-up the session: Password and access levels........................................................ 81
7.7. MENUS..................................................................................................................................... 82
7.7.1. Standby mode screen........................................................................................................ 82
7.7.2. Accessing the menus ........................................................................................................ 82
7.7.3. Date-time menu .................................................................................................................. 83
7.7.4. Versions.............................................................................................................................. 83
7.7.5. Communication parameters.............................................................................................. 83
7.7.6. Contrast............................................................................................................................... 83
7.7.7. Fault report ......................................................................................................................... 84
7.7.8. Test Menu............................................................................................................................ 85
7.7.9. Functions Menu.................................................................................................................. 86
7.7.10. Measurements Menu.......................................................................................................... 88
7.7.11. States menu........................................................................................................................ 89
7.7.12. Settings Menu................................................................................................................... 108
7.7.13. Events Menu..................................................................................................................... 119
7.7.14. Counters menu................................................................................................................. 121
7.7.15. Commands Menu ............................................................................................................. 122
7.7.16. Load Data Profiling .......................................................................................................... 123
7.7.17. Fault reports ..................................................................................................................... 124
7.7.18. PGC and Outputs Configuration Menu.......................................................................... 125
8. COMMISSIONING.................................................................................................................. 131
8.1. Checklist for Commissioning.............................................................................................. 131
8.2. Electrostatic discharge........................................................................................................ 131
8.3. Visual Inspection.................................................................................................................. 131
8.4. Earthing................................................................................................................................. 131
8.5. Current transformers ........................................................................................................... 131
8.6. Auxiliary power..................................................................................................................... 131
8.7. Front communications port................................................................................................. 131
8.8. Commissioning..................................................................................................................... 132
9. APPENDIX ............................................................................................................................. 132
9.1. Identification ......................................................................................................................... 132
9.2. Checks................................................................................................................................... 132
9.3. Test menu.............................................................................................................................. 132
9.4. Register of commissioning settings .................................................................................. 133
9.5. Inputs..................................................................................................................................... 135
9.6. Outputs.................................................................................................................................. 135
9.7. Leds ....................................................................................................................................... 135
9.8. Comments............................................................................................................................. 136

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1. RECEPTION, HANDLING & INSTALLATION
1.1. Unpacking
Relays must only be handled by qualified personnel and special care must be taken to protect all of their
parts from any damage while they are being unpacked and installed. The use of good illumination is
recommended to facilitate the relay visual inspection.
The facility must be clean and dry, and relays should not be stored in places that are exposed to dust
or humidity. Special care must be taken if construction work is taking place.
1.2. Reception of relays
It is necessary to inspect the relay at the time it is delivered to ensure that the relays have not been
damaged during transport.
If any defect is found, the transport company and FANOX should be informed immediately.
If the relays are not for immediate use, they should be returned to their original packaging.
1.3. Handling electronic relay
Relays contain an electronic component that is sensitive to electrostatic discharges.
Just by moving, a person can build up an electrostatic potential of several thousand volts. Discharging
this energy into electronic components can cause serious damage to electronic circuits. It is possible
that this damage may not be detected straight away, but the electronic circuit reliability and life will be
reduced. This electronic component in the relay is well protected by the metal housing, which should
not be removed as the relay cannot be adjusted internally.
If it is necessary to disassemble the electronic component, this must be carried out with care and contact
with electronic components, printed circuits and connections must be avoided to prevent an electrostatic
discharge that could damage one of the components. If the electronic components are stored outside
the metal housing, they must be placed in an antistatic conductive bag.
If it is necessary to open a module, care must be taken to preserve the relay reliability and the duration
of the life cycle as designed by the manufacturer by taking the following actions:
•Touch the housing to ensure that you have the same potential
•Avoid touching the electronic components and handle the module by its edges.
•Remember that everyone who handles the module must have the same potential.
•Use a conductive bag to transport the module.
For more information about how to handle electronic circuits, consult official documents such as the IEC
147-OF.

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1.4. Installation, commissioning and service
The personnel in charge of installing, commissioning and maintaining this relay must be qualified and
must be aware of the procedures for handling it. The product documentation should be read before
installing, commissioning or carrying out maintenance work on the relay.
Personnel should take specific protection measures to avoid the risk of electronic discharge when
access is unlocked on the rear part of the relay.
In order to guarantee safety, the crimp terminal and a suitable group tool must be used to meet isolation
requirements on the terminal strip. Crimped terminations must be used for the voltage and current
connections.
It is necessary to connect the relay to earth through the corresponding terminal, using the shortest
possible cable. As well as guaranteeing safety for the personnel, this connection allows high frequency
noise to be evacuated directly to earth.
The following checks must be performed before the relay is supplied:
•The rated voltage and polarity.
•The power rating of the CT circuit and the integrity of the connections.
•The integrity of the earth connection.
The relay must be used within the stipulated electrical and environmental limits.
Note: Regarding the current transformer circuits: Do not open a live CT secondary circuit. The high
voltage produced as a result could damage the isolation and threaten lives.
1.5. Storage
If the relays are not going to be installed immediately, they must be stored in a dust- and humidity free
environment after the visual inspection has been performed.
1.6. Recycling
Before recycling the relay, the capacitors should be discharged through the external terminals. All
electrical power sources should be removed before performing this operation to avoid the risk of
electrical discharge.
This product must be disposed of in a safe way. It should not be incinerated or brought into contact with
water sources like rivers, lakes, etc.

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2. DIMENSIONS AND CONNECTION DIAGRAMS
2.1. Front view
2.2. Case dimensions
The dimensions are in mm:

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Cut-out pattern
2.3. Striker dimensions
2.3.1. PRT-15

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2.3.2. PRT
A
44,5
B
49,5
C
56,5
D
64,5
E
42,5

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2.4. Connection diagram
NOTE! STRIKER: 6 –24 Vdc & <= 0.135 W·s

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2.5. Terminals
A1
Phase A current input for measurement and self-power
B7
Trip output +
A2
Phase A current output for measurement and self-
power
B8
Trip output –
A3
Phase B current input for measurement and self-power
B9
Digital 1 common output
A4
Phase B current output for measurement and self-
power
B10
Digital output 1 NC
A5
Phase C current input for measurement and self-power
B11
Digital output 1 NO
A6
Phase C current output for measurement and self-
power
B12
Digital 2 common output
A7
Neutral current input for measurement
B13
Digital output 2 NC
A8
Neutral current output for measurement
B14
Digital output 2 NO
B1
Auxiliary power supply +
B15
Digital 3 common output
B2
Auxiliary power supply -
B16
Digital output 3 NC
B3
Common of the Inputs
B17
Digital output 3 NO
B4
Input 1
B18-B19
RS485 Remote communication (*)
B5
Input 2
B6
Input 3
(*) Optional depending on model

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3. DESCRIPTION
3.1. Introduction
Worldwide, the energy sector is currently undergoing a profound change as a result of high levels of
energy demand; more distribution lines and advanced supervision systems are required. Given the need
for creating intelligent infrastructure, FANOX has developed the SIA family of products to carry out this
function.
The family of SIA relays is designed to protect the secondary transformation and distribution centers of
electricity grids. Protection features include protection against instantaneous and inverse time
overcurrent (for the phases and the neutral), and it also has external trip support (temperature, pressure,
etc.) depending on the characteristics of each model.
The protection functions can be enabled selectively by using both the front panel and the
communications links to the SICom program, allowing for precise coordination with another relay.
Additional benefits include that all of the models have been designed to be supplied from an external
battery. This is aimed at facilitating event management and the commissioning of centers, as well as
allowing it to operate properly under adverse conditions.
3.2. Relay description
The SIA-B relay is a protection relay designed for secondary distribution. One of its main characteristics
is the ability to power itself by using the cell current. Standard 1A secondary current transformers are
used for this, which allow self-powering with lower levels of current.
The relay powers itself from 160 mA with single-phase current, 100 mA with 2-phase and 75 mA with
three-phase current. It is important to consider that, despite of the device starts up with those values
and trip output is activated in those values, to activate the optional outputs, it is needed a minimum of
270 mA single-phase current and a minimum of 90 mA three-phase current.
The relay is maintenance free when this type of power supply is used, as it does not require auxiliary
power components (batteries). As a result, it is especially useful in any centers were auxiliary power is
not available or cannot be guaranteed.
The SIA-B relay is housed in a metal box with galvanic isolation on all its measurement inputs and
outputs (except for communications ports and battery power supply, as these are sporadic connections).
This fact allows the relay to have the best possible level of electromagnetic compatibility, both in terms
of emission of, and immunity from, radiated and conducted interferences. These levels are the same as
those established for primary substations.
The relay has an LCD with two lines and twenty columns and a membrane keyboard with six buttons.
These allow the display of the relay state, the current measurements in the primary and the events or
incidents associated with the relay, and adjustments to be made to the protection criteria.
There are four configurable LED indicators on the front of the SIA-B relay. By default, they indicate:
LEDS
DEFAULT CONFIGURATION
Led 1
Ready
Led 2
Ground trip
Led 3
Phase Trip
Led 4
CB SF6 Gas Low

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Besides, the relay is provided with 3 signaling outputs that are also configurable by the user. By default:
Signaling outputs
DEFAULT CONFIGURATION
Output 1
Watchdog
Output 2
Phase Trip
Output 3
Ground trip
The relay has storage for up to 1024 events, allowing any registered incidents to be analyzed. RTC
(Real Time Clock) is available for all SIA-B models.
To facilitate the analysis of events, it is fitted with 20 fault reports (16 events per fault report) and 10
records in COMTRADE format (50 cycles per record). Fault reports start when any of the protection
functions picks-up and it finishes when any of the mentioned functions trips.
Current measurements are performed using RMS values. Standard current transformers (CTs) are
used.
The relay has a frontal communication port (micro USB). This port allows a PC to be connected, which
can be used to monitor the relay using the SICom communications program (supplied by FANOX).
Besides, the frontal port can be used to power the relay by using an USB cable which can be directly
connected with PC. Remote communication is available depending on model (RS485 rear port - Modbus
RTU protocol or DNP3.0 Serial).
The protective functions provided, easy-to-use interface, low amount of maintenance and simple
integration make the SIA-B a precise and practical solution for protecting both industrial and public
electrical grids and transformation and distribution centers. The main features of the relay are listed
below, and these features will be explained in the rest of the manual:
Function
Description
SIA-B
Protection
50_1
Phase instantaneous overcurrent protection function
1
50G_1
Ground instantaneous overcurrent protection function
1
50/51
Phase inverse time overcurrent protection function
1
50/51G
Ground inverse time overcurrent protection function
1
49T
External trip
✓(Through configurable inputs)
SHB
Second harmonic Blocking
1
49
Thermal image
1
Fuse +
Switchgear
Trip block for switch disconnector
1 (optional)
CLP
Cold load pickup
1 (optional)
50_2
Phase instantaneous overcurrent protection function
1 (optional)
50G_2
Ground instantaneous overcurrent protection function
1 (optional)
46
Phase balance current (negative sequence overcurrent)
1 (optional)
50BF
Breaker Failure monitoring
1 (optional)

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PGC
Programmable Logic Control
V3
Circuit Breaker monitoring
52
State and control of the circuit breaker
✓
Number of openings Counter
✓
Accumulated amperes counter:
✓
Maximum openings in a time window
✓
Measurements
Phase and neutral RMS measurement with ±2% over
±20% over the nominal current and ±4% or ± 5 mA in the
rest of the range.
✓
Inputs and Outputs
External trip input (without power supply)
Through configurable inputs
Configurable inputs (without power supply)
3
Trip output for STRIKER
1
Configurable signaling outputs
3 (NO-NC)
Communication and HMI
Front port: micro USB (Modbus RTU)
✓
Rear port: RS485 (Modbus RTU or DNP3.0 Serial)
Optional
SICom Program
✓
HMI: LCD, 20x2 and 6 keys + 1 reset button + Battery key
✓
LED Indicators
4
Power supply
Self-powering with standard CTs:
75 mA three phase/100 mA two phase/160 mA single phase
✓
Auxiliary power: 24-230 Vdc / Vac, 50/60 Hz
Optional
Internal commissioning battery
✓
Battery power accessory: 5 V with Kitcom adaptor
✓

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Monitoring and recording
Events saved in the non-volatile FRAM* memory
1024
Commands
✓
Settings groups
4
Real-Time Clock (RTC)
✓
Disturbance Fault Recording (DFR)
20 fault reports (16 events each one)
10 records in COMTRADE format (50 cycles per record)
Test menu
✓
Self-diagnosis
✓
•Events registered in the FRAM are maintained when there is a power fault, as it is a non-volatile memory. A maximum
of 1024 events can be stored.
•Fault reports registered in the FRAM are maintained when there is a power fault, as it is a non-volatile memory. A
maximum of 20 fault reports and 10 records in COMTRADE format can be stored.
3.3. Functional Diagram

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3.4. Selection & Ordering codes
SIAB
Protection Functions
50 + 50/51 + 50G + 50/ 51G + PGC
1
Phase Measurement
In=1 A; (0.10-30.00 A)
1
Neutral Measurement
In=1 A; (0.05-16.00 A)
0
Net Frequency
Defined by General Settings
A
F
Power Supply
Self-powered + Commissioning Battery
Self-powered + 24-230 Vdc / Vac (Dual) + Commissioning Battery
C
D
Additional Functions
+ 49 + SHB + 4 Settings groups + LDP + DFR + 52
+ 49 + SHB + 4 Settings groups + LDP + DFR + 52 + 46 + Trip Block for switch
disconnector + 50_2 + 50G_2 + CLP + 50BF
0
2
Communications
USB (Modbus RTU)
USB (Modbus RTU) + RS485 (Modbus RTU or DNP3.0)
3
Inputs and Outputs
4 LEDs + Trip (striker) + 3 Outputs + 3 Inputs
2
Mechanics
Extended Horizontal Assembly
A
B
C
D
Languages
English, Spanish and German
English, Spanish and Turkish
English, Spanish and French
English, Spanish and Russian
C
Adaptation
Standard CTs /1

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3.5. Phase CT and neutral CT selection
SIA-B relay requires current transformers with the following specifications:
SIAB/1: CT Burden 2 VA to achieve the self-powering from the minimum declared value.
The relay can measure up to 20xIn in the phases and up to 16xIn in the neutral:
Phases measurement: 0.1-20xIn
Neutral measurement: 0.05-16xIn
Model
Phase
Neutral
Phase range
Neutral range
SIAB11
CT 1 A
Residual phase connection or CT 1A
0.1-20 A
0.05-16 A
3.5.1. Load curve for SIA-B relay
0,000
1,000
2,000
3,000
4,000
5,000
6,000
0,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000 21,000
Average Voltage (V)
Average Current (A)
Load Curve for SIA-B /1 relay

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3.5.2. Burden curve for SIA-B relay
3.5.3. Impedance curve for SIA-B relay
0,100
1,000
10,000
100,000
0,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000
Burden (VA)
Average Current (A)
Burden Curve for SIA-B /1 relay
0,100
1,000
10,000
0,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 20,000
Impedance (Ohms)
Average Current (A)
Impedance Curve for SIA-B /1 relay

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4. PROTECTION FUNCTIONS
4.1. General settings
Additionally, it is necessary to define some previous parameters that will provide the SIA-C relay
information about what and how it is going to protect.
Group
Description
Minimum
Maximum
Step
Unit
Default
Generals
Identification
-
-
-
-
“free text”
Frequency
-
-
60/50
Hz
50
Serial Number
-
-
-
-
-
Language
0
3
1
-
ENGLISH
Active Settings Group (*)
1
4
1
-
1
Trip Voltage Level
12
24
12, 17, 22 or 24
Vdc
17
CT phase ratio
1.0
3000.0
0.1
-
1
CT neutral ratio
1.0
3000.0
0.1
-
1
Local Address
1
247
1
-
1
Remote address (*)
1
247
1
-
2
Remote baudrate (*)
4800
38400
4800, 9600, 19200 or 38400
-
19200
Remote Protocol (*)
-
-
Modbus RTU or DNP3.0
-
Modbus
(*) Optional depending on model
Next points must be considered referring general settings:
The serial number is only a reading setting.
The rest of the settings can be changed either from the HMI or through communications.
Any change of set values will restart all functions, irrespective they are activated or not.

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4.2. Function SHB. Second Harmonic Blocking
The second harmonic blocking is used to avoid an undesirable behavior due to inrush current when
energizing a machine like a transformer or a generator.
Group
Description
Minimum
Maximum
Step
Unit
Default
SHB
Second harmonic blocking
Function Enable
-
-
Yes/No
-
No
Current tap
5
50
1
%
5
Reset time
0.00
300.00
0.01
s
0.00
In order to avoid these undesirable trips, if the second harmonic percentage is higher than the pre-set
value, the trip will be blocked during the time set in reset time parameter.
The function picks-up at 100% off the adjusted input and the dropout is at 95%. The reset type will
depend on the adjusted reset time.
The SHB will only be applied in functions that have this option in the “function enable” setting”. When
the Function Enable of these protection functions is set to “SHB”, the relay will supervise the the second
harmonic content in order to trip or block the trip depending on the percentage of second harmonic
present in the current signal.
4.3. Function 50. Instantaneous phase overcurrent
This protection function can be set by using three parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
50_1
50_2(*)
Instantaneous phase overcurrent
Function Enable
-
-
Yes/No/SHB
-
No
Current Tap
0.07
20.00
0.01
xIn
5.00
Time Delay
0.02
300.00
0.01
s
0.2
(*) Optional depending on model
The Time Delay is independent from the operating current flowing through the relay, so if the phase
current exceeds its predetermined value for an equal or greater amount of time than this pre-set value,
the protection function activates (trips) and does not reset itself until the value of the phase drops below
the point of current tap.
When the Function Enable is set to “YES”; the accuracy of the Time Delay is equal to the pre-set time
±30 ms or ±0.5% (whichever is greater). If the Function Enable is set to “SHB”, the accuracy of the Time
Delay is equal to the pre-set time ±50 ms or ±0.5% (whichever is greater).
The function activates at 100% of the pre-set input and deactivates at 95%. The reset is instantaneous.