FANOX SIL-A A Series, User Manual

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Depending on the model, these events can be saved in a non-volatile memory to keep them when there
is no power.
As well as the 6 keys to navigate the menus, there are also special keys:
•
Reset. To reset the signals and events.
•
79 Block/Unblock. These buttons block and unblock the recloser.
•
52 I/O. These buttons serve to control the circuit breaker.
The SIL-A is fitted with 8 front LEDs, 6 of them configurable by the user.
It can store, up to 2048 events, allowing any registered incidents to be analyzed.
To facilitate the analysis of the information recorded in the relay, fault reports are also included in data
and COMTRADE format. Event recording consists of more general information, and fault reports will
record just the events related with the fault situation, allowing the user to export these fault reports in
COMTRADE format (IEEE C37.111-1991) to analyze the graphical representation of fault reports. SIL-
The relay can store the fault reports in COMTRADE format - cyclic recording by FIFO method -
(resolution 32 samples/cycle):
5 COMTRADE records (260 cycles each record): 1 to 8 pre-fault 252 to 259 postfault cycles.
25 COMTRADE records (60 cycles each record): 1 to 8 pre-fault 52 to 59 postfault cycles.
50 COMTRADE records (30 cycles each record): 1 to 8 pre-fault 22 to 29 postfault cycles.
100 COMTRADE records (15 cycles each record): 1 to 8 pre-fault 7 to 14 postfault cycles.
Current measurements are performed using the fundamental values, with an accuracy of 2% over a
range of ±20% over the nominal current and 4% over the rest of the range. Standard 5 A and 1 A current
transformers (CTs) are used depending on model.
The relay is provided with 1 front communication port. This micro USB port allows a PC to be connected
and the relay to be monitored using the SICom program in WINDOWS 7, WINDOWS 8, WINDOWS 8.1
or WINDOWS 10 (supplied by FANOX).
The rear communication ports are designed for different functions. While one is used for control,
principally including the alarm and control functions, the other is designed for specific protection
personnel consultations, with the possibility of consulting and changing, adjustment, or downloading of
events and disturbance fault recording (DFR), all without affecting the control part operation. Depending
on model, there are the following options respect to rear ports:
1. One RS485 port available in all models with selectable communication protocols
(selectable by settings) between IEC60870-103, DNP3.0 Serial and Modbus RTU.
2. One additional RJ45 port with IEC61850, DNP3.0 TCP/IP, IEC60870-104 (selectable
by settings) or Modbus TCP/IP depending on model.
Setting-up a session allows four levels of access to be set up with passwords that can be configured by
the user through SICom communication software.
The protection functions, easy-to-use interface, low amount of maintenance and simple integration make
the SIL-A a precise and practical solution to protect both industrial and public electrical grids and
transformation and distribution centres. The SIL-A protection against earthing faults is sensitive enough
to be used on electric systems with low earthing fault currents. It can be adjusted to 0.01 times the rated
current and extremely low rated levels can be selected.
The main features of the relay are listed below, and these features will be explained in the rest of the
manual: