FANOX SIA-F User manual

EN_FANOXTD_MANU_SIA_Ocefsecondarydist_SIAF_R017.Docx
USER´S MANUAL
SIA-F
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 device.............................................................................................................5
1.4. Installation, commissioning and service ......................................................................................6
1.5. Storage..............................................................................................................................................6
1.6. Recycling..........................................................................................................................................6
2. DIMENSIONS AND CONNECTION DIAGRAMS .............................................................................7
2.1. Frontal view......................................................................................................................................7
2.2. Case dimensions .............................................................................................................................8
2.3. Connection diagram........................................................................................................................9
2.4. Terminals..........................................................................................................................................11
3. DESCRIPTION ..................................................................................................................................12
3.1. Introduction......................................................................................................................................12
3.2. Device 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. External current transformers advantages ..........................................................................17
3.5.2. Load curve for relay SIA-F/1 ..................................................................................................18
3.5.3. Load curve of relay SIA-F/5....................................................................................................18
4. PROTECTION FUNCTIONS .............................................................................................................19
4.1. 50 Function. Phase instantaneous phase overcurrent................................................................19
4.2. 50/51 Function. Phase inverse time overcurrent..........................................................................19
4.3. 50N/G Function. Neutral instantaneous overcurrent...................................................................20
4.4. 50/51N/G Function. Neutral inverse time overcurrent .................................................................21
4.5. Cold Load Pickup ............................................................................................................................21
4.6. Trip block protection for the switchgear.......................................................................................23
4.7. 52 Function. Circuit breaker monitoring .......................................................................................23
4.7.1. Circuit breaker opening and closing commands ................................................................25
4.7.2. Counter to register the number of openings .......................................................................25
4.7.3. Counter to register the accumulated amps: I2t ...................................................................25
4.7.4. Excessive openings per time.................................................................................................26
4.8. 49 Function. Thermal Image Protection ........................................................................................26
4.9. 50BF Function. Circuit Breaker opening fault ..............................................................................29
4.10. 68 Function. Trip Bus......................................................................................................................30
4.11. General Settings ..............................................................................................................................31
4.12. Setting Group...................................................................................................................................32
4.13. IEC 60255-151 Curves .....................................................................................................................33
4.14. IEEE Curves......................................................................................................................................37
4.15. Application examples......................................................................................................................41

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5. MONITORING AND CONTROL........................................................................................................46
5.1. Measurements..................................................................................................................................46
5.2. Counters ...........................................................................................................................................46
5.3. States and Events............................................................................................................................47
5.4. Fault Reports....................................................................................................................................54
5.5. Date and Time by Real Time Clock (RTC) .....................................................................................54
5.6. Oscillography...................................................................................................................................55
5.7. Digital Inputs ....................................................................................................................................58
5.8. Configurable Outputs......................................................................................................................58
5.9. Programmable Logic Control & Digital Outputs...........................................................................58
5.10. Self-diagnosis ..................................................................................................................................63
5.11. Commands .......................................................................................................................................63
5.12. Test Menu.........................................................................................................................................64
5.13. Power supply....................................................................................................................................64
6. TECHNICAL SPECIFICATIONS AND STANDARDS......................................................................65
6.1. Technical Specifications.................................................................................................................65
6.2. Thermal resistance..........................................................................................................................68
6.3. Output relays....................................................................................................................................69
7. COMMUNICATION AND HMI...........................................................................................................70
7.1. Front Communication: USB............................................................................................................70
7.2. Rear Communication: RS485 .........................................................................................................70
7.3. LED Indicators..................................................................................................................................71
7.4. LCD and keypad...............................................................................................................................72
7.5. SICom Communications program..................................................................................................72
7.5.1. How to install SICOM Software..............................................................................................73
7.6. Setting up the session: Password and access levels .................................................................73
7.7. MENUS..............................................................................................................................................74
7.7.1. Standby mode screen.............................................................................................................74
7.7.2. Accessing the menus.............................................................................................................74
7.7.3. Date-time menu .......................................................................................................................75
7.7.4. Versions...................................................................................................................................75
7.7.5. Communication parameters ..................................................................................................75
7.7.6. Test Menu ................................................................................................................................76
7.7.7. Functions Menu.......................................................................................................................78
7.7.8. Measurements Menu...............................................................................................................79
7.7.9. States Menu.............................................................................................................................80
7.7.10. Settings Menu..........................................................................................................................93
7.7.11. Events Menu............................................................................................................................102
7.7.12. Counters Menu........................................................................................................................104
7.7.13. Commands Menu....................................................................................................................105

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7.7.14. PGC and Output Configuration Menu...................................................................................107
8. COMMISSIONING.............................................................................................................................111
8.1. Checklist for Commissioning.........................................................................................................111
8.2. Electrostatic discharge ...................................................................................................................111
8.3. Visual Inspection .............................................................................................................................111
8.4. Earthing ............................................................................................................................................111
8.5. Current transformers.......................................................................................................................111
8.6. Auxiliary power................................................................................................................................111
8.7. Front communications port............................................................................................................111
8.8. Commissioning................................................................................................................................112
9. APPENDIX.........................................................................................................................................113
9.1. Identification.....................................................................................................................................113
9.2. Checks ..............................................................................................................................................114
9.3. Test menu.........................................................................................................................................114
9.4. Register of commissioning settings..............................................................................................114
9.5. Output configuration.......................................................................................................................116
9.6. Comments ........................................................................................................................................117

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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 their
parts from any damage while they are being unpacked and installed. The use of good illumination is
recommended to facilitate the device 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 device 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 device
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 device is well protected by the metal housing, which should
not be removed as the device 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 device 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 device 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 device.
Personnel should take specific protection measures to avoid the risk of electronic discharge when
access is unlocked on the rear part of the device.
In order to guarantee safety, the crimp terminal and a suitable 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 device 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 device 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 device 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 device, 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. Frontal view

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2.2. Case dimensions
The dimensions are in mm.
CUT-OUT PATTERN

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2.3. Connection diagram
3 Phase CT and neutral CT Connection

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3 Phase CT and residual neutral Connection

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2.4. Terminals
A1
+
RS 485
A2
-
A3
Input-1
INPUTS
A4
Input-2
A5
Common inputs
A6-A7
Trip output
TRIP
A8-A9
Output 2
OUTPUTS
A10
Common output 3
A11
NC-3
A12
NO-3
A13
+
U aux
A14
-

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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
substations 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 device.
3.2. Device description
The SIA-F device is a protection relay designed for secondary distribution.
It is supplied with 24-220 Vac/48-230 Vac auxiliary voltage. As
for the rest of the SIA family, it can be supplied through its front
communications port connecting to PC directly using a USB
cable. This facilitates the start-up of the substations and the
management of events. The operation is guaranteed when the
SIA-F device is supplied from front USB port connector (mini
USB type A).
As well as the functions to protect against instantaneous phase
and neutral overcurrents and phase and neutral inverse time
overcurrents, it is possible to choose thermal image, circuit
braking monitoring and circuit breaker opening fault unit for
each model. It is also equipped with a trip blocking to protect
the switchgear in substations that combine switchgear and
fuses.
Depending on model it is included a breaker management
block, which monitors the switch condition, the number of
breaks and the accumulated amps. It generates an indication if
these are excessive, it determines whether an Opening fault
has occurred and allows the breaker close and open commands from the HMI and via the
communications port (either locally or remotely).
The SIA-F device has two inputs and two outputs that can be configured by the user (programmable
logic) apart from trip output and 3 LEDs.
In order to facilitate the analysis of events, it is fitted with 4 fault reports (16 events per fault report).
Fault report´s start can be configured by the user. Each register includes the events that have
occurred during the incident.
The SIA-F device is housed in a metal box with galvanic isolation on all its measurement or digital
inputs and outputs (with the exception of ports for communications). This allows the device 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.

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The device has a LCD with two lines and twenty columns and a membrane keyboard with six buttons.
These allow the display of the device state, the current measurements in the primary and the events or
incidents associated with the device, and adjustments to be made to the protection criteria. These
events are saved in a non-volatile memory to conserve them in case of power failures.
There are three configurable LED indicators on the front of the SIA-F device. By default, these indicate
if the device is ready (LED ON), if an alarm has happened (LED ALARM) or if a trip has happened
(LED TRIP). The device has storage for up to 200 events, allowing any recorded incidents to be
analyzed. All SIA-F models are equipped with a real-time clock (RTC).
Current measurements are performed using RMS values, with ±2% accuracy in a band of ± 20% when
compared with rated current and ±4% in the rest of the range. Standard 5 A and 1 A current
transformers (CTs) are used.
The device has two communication ports: a front port (connector mini USB type A) and a rear port
(RS485). The front port allows a PC to be connected, which can be used to monitor the device using
the SICom communications program (supplied by FANOX). Front port can be used to power the
device by using a USB cable which can be directly connected with PC. The rear port RS485 allows the
device to be integrated as part of a system (SCADA). The ModBus RTU protocol is used in both ports.
Setting-up a session allows four levels of access to be set up with passwords that can be configured
by the user.
The protection functions provided, easy-to-use interface, low amount of maintenance and simple
integration make the SIA-F a precise and practical solution for protecting both industrial and public
electrical grids and transformation and distribution substations. The protection offered by the SIA-F
against earth faults is sensitive enough to be used in electric systems where the earth fault current is
low. It can be set to 0.1 times the rated neutral current and, depending on the model, the rated neutral
current can go as low as 0.1 A.

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The main features of the device are listed below, and these features will be explained in the rest of the
manual:
Function
Description
SIA-F
Protection
50
Phase instantaneous overcurrent protection function
1
50N/G
Neutral instantaneous overcurrent protection function
1
50/51
Phase inverse time overcurrent protection function
1
50/51N/G
Neutral inverse time overcurrent protection function
1
CLP
Cold load pickup
1
Trip block
Trip blocking to protect the switchgear
1 (optional)
49
Thermal image
1 (optional)
52
Circuit breaker monitoring
1 (optional)
50BF
Circuit breaker opening fault
1 (optional)
68
Trip Bus (through configurable inputs and outputs)
1 (optional)
PGC
Programmable Logic Control
V3
Measurements
Phase and neutral RMS measurement with 2% accuracy on a
band of ±20% over the nominal current and 4% over the rest
of the range.
IA, IB, IC, IN, Imax and TI
Inputs and Outputs
Configurable Inputs
2 (Optional)
Configurable (PGC) outputs
2 (Optional)
Trip output (configurable)
1 Potential free
Communication and HMI
Front port: connector mini USB type B (ModBus, RTU
19200)
✓
Rear port: RS485 (ModBus, RTU 19200)
✓(Optional)
SICom Program
✓
HMI: LCD, 20x2 and 6 keys + 1 reset button
✓
LED Indicators
3

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Power supply
Auxiliary voltage
24-220 Vdc/48-230 Vac
USB supply
✓
Power bank (connector USB type B)
✓
Monitoring and recording
Events saved in the non-volatile FRAM* memory
200
Fault reports
4
Oscillographic records
1
Counters
Optional
Commands
Optional
Real-Time Clock (RTC)
✓
Test menu
✓
Self-diagnosis
✓
3.3. Functional Diagram

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3.4. Selection & Ordering codes
SIA F
Protection functions
50 + 50/51 + 50N/G + 50/51N/G + PGC + Cold Load Pick-
up
1
5
Phase Measurement
In = 1 A; (0.10 –30.00 A)
In = 5 A; (0.50 –150.00 A)
1
5
B
Neutral Measurement
In = 1 A; (0.10 –30.00 A)
In = 5 A; (0.50 –150.00 A)
In = 0.2 A; (0.02 –6.00 A)
0
Net Frequency
Defined by General Setting
C
Power Supply
24–220 Vdc / 48-230 Vac
0
1
B
C
Additional Functions
-
+ 52 + 50BF + 49
+ Trip block
+ Trip block + 52 + 50BF + 49
0
1
2
Communications
USB (Modbus RTU)
USB (Modbus RTU) + RS485 (Modbus RTU)
USB (Modbus RTU) + RS485 (DNP3.0 Serial)
0
1
Inputs and Outputs
Trip
Trip + 2 Inputs + 2 Outputs
0
Mechanics
Vertical Assembly
A
B
C
D
Languages
English, Spanish and German
English, Spanish and Turkish
English, Spanish and French
English, Spanish and Russian
A
Adaptation
-

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3.5. Phase CT and neutral CT selection
The following table shows a summary of phase and neutral CT combinations:
Model
Phase
Neutral
Phase range
Neutral range
SIAF55
CT 5 A
Residual phase connection
0,5-150 A
0,5-150 A
SIAF11
CT 1 A
Residual phase connection
0,1-30 A
0,1-30 A
SIAF51
CT 5 A
CT 1 A
0,5-150 A
0,1-30 A
SIAF1B
CT 1 A
CT 0,2 A
0,1-30 A
0,02-6 A
SIAF5B
CT 5 A
CT 0,2 A
0,5-150
0,02-6 A
In order to assure a correct running of the relay, it is necessary to use the proper current transformer.
Therefore, the load of measurement circuits of the relay and the load of connection cables between
CT’s and relay must be considered.
3.5.1. External current transformers advantages
It is possible to make the connection by passing the cables through the SIAF current transformers.
This solution offers more versatility because the transformation relationship can be modified.
By means of giving turns through the four current transformers of SIAF relay, CT transformation
relationship can be modified getting an easier way of relay adaptation to the final application.
i.e.
If there is a CT with Transformation relationship RT and the secondary of the CT is /1, a relay for
measurement collecting of 1 A of nominal current must be used. However, what is the necessary
action if there is a relay of 5 A of nominal current?
It is possible to give 5 turns to the secondary of the transformers of SIAF relay. Therefore, the
measurement will be multiplied by five and it would be suitable for the 5 A relay. In this case, the new
transformation relationship would be RT/5 and the relay must be adjusted accordingly with the aim of a
correct display of line current.
PRECISION
BURDEN
RELAYS
5P10
5P20
5P30
0,5 VA
0,5 VA
0,5 VA
SIA-F/1
SIA-F/1
SIA-F/1
5P10
5P20
5P30
1 VA
1 VA
1 VA
SIA-F/5
SIA-F/5
SIA-F/5

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3.5.2. Load curve for relay SIA-F/1
3.5.3. Load curve of relay SIA-F/5

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4. PROTECTION FUNCTIONS
4.1. 50 Function. Phase instantaneous phase overcurrent
This protection function can be set by using three parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
50
Phase instantaneous overcurrent
Permission
-
-
Yes/No
-
No
Tap
0,10
30,00
0,01
I nominal
5,00
Operating time
0,02
300,00
0,01
s
0,2
The operating time is independent from the operating current flowing through the device, 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.
The function activates at 100% of the pre-set input and deactivates at 95%. The reset is
instantaneous.
The accuracy of the operating time is equal to the pre-set time ±30ms or ±0.5% (whichever is greater).
4.2. 50/51 Function. Phase inverse time overcurrent
This protection function can be set by using five parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
50/51
Phase inverse time overcurrent
Permission
-
-
Yes/No
-
No
Curve
-
-
(1*)
-
IEC Extremely Inverse
Dial
0,02
1,25
0,01
-
1,25
Tap
0,10
7,00
0,01
Inominal
1,00
Operating time
0,02
300,00
0,01
s
0,2
(1*) IEC Inverse, IEC Very inverse, IEC Extremely inverse, Defined time, IEEE Inverse, IEEE Very inverse, IEEE Extremely
inverse

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If the option "Defined time" is selected for the curve setting, the unit behaves like an instantaneous
overcurrent unit. In this case, the unit operating time is set by the parameter "Operating time".
If a curve is selected for the curve setting, the operating time depends on the curve, dial and tap
settings.
If the unit operates with defined time, the function is activated at 100% of the set tap value, and it
deactivates at 95%.
If the unit operates with a curve, the function is activated at 110% of the set tap value, and it
deactivates at 100%.
The reset is instantaneous in both cases.
The activation time is accurate to ±5% or ±30ms, whichever is greater, of the theoretical activation
time.
The curves used are IEC 60255-151 or IEEE, which are described in the "Curves" section.
4.3. 50N/G Function. Neutral instantaneous overcurrent
This protection function can be set by using three parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
50N/G
Neutral instantaneous overcurrent
Permission
-
-
Yes/No
-
No
Tap
0,10
30,00
0,01
I nominal
1,00
Operating time
0,02
300,00
0,01
s
0,2
The operating time is completely independent from the operating current that flows through the device,
so if the neutral 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 pick-up.
The function activates at 100% of the pre-set input and deactivates at 95%. The reset is
instantaneous.
The accuracy of the operation time is equal to the pre-set time ±30ms or ±0.5% (whichever is greater).