An important function of digital protection is to store disturbance records for more accurate analysis of critical events in the grid.

1. SICAM Disto
Siemens

2. An important function of digital protection is to store disturbance records for
more accurate analysis of critical events in the grid.
As the memory for such records is limited in the relay it has shown convenient
to extract them by use of standardized communication and store them on a
hard disk on station level for further use.
Serial communication of digital protective devices to Substation Control
Systems has been standardized and published as IEC standard protocol
60870-5-103.
Recently the new standard for power utility communication IEC 61850 has
added much more flexibility and performance to data exchange with
different IEDs.
Description

3. SICAM DISTO (disturbance data storage) is a software package that detects
new fault records in the connected devices, lists these and stores them in
preconfigured directories on the hard disk of a PC.
In order to support easy evaluation with different software tools, DISTO uses
the standardized COMTRADE format 91 and 99 in accordance with IEC
60255-24 for the files of the fault records.
Files that have to be transmitted via IEC 60870-5-103 have to be converted
by DISTO into COMTRADE. With IEC 61850 the files arrive in the right
format. Some protection devices transmit the COMTRADE files compressed in
zip files via IEC 61850.
SICAM DISTO detects such files and unpacks them into the correct
directories. Fundamentally, with IEC 61850 SICAM DISTO expects the fault
record transmissions via MMS. The function variant FTP is not supported.
Description

4. For access to station communication, DISTO requires an installed SICAM
SCC and its integrated communication drivers. Remote access to the stored
files can take place with the standard tools of the operating system.
SICAM DISTO is available for the following system platforms:
Description

5. Platform-dependent differences only exist with the system requirements. In
part, there are also visual differences between the different platforms;
there are no functional differences.
The host system is used as an interface to the automation system, that is, all
those interfaces that the respective host system offers to the automation
system can also be used to transfer fault record data.
Dependent on the utilized platform, there are various requirements that
have to be fulfilled in order to commence with the installation of SICAM
DISTO.
Description

6. SICAM DISTO (disturbance data storage)
is a software package, which recognizes the occurrence of new disturbance
records in the connected protection relay fetches them by means of
substation communication and stores them in preconfigured directories on
the hard disk of a PC. For easy analysis with different tools DISTO uses the
standardized OMTRADE – format for all disturbance files according to IEC
60255-24). Whereas DISTO has to translate incoming disturbance records
from IEC 60870-5-103 into COMTRADE, the transmitted files in IEC 61850
are already in the right format.
Some protection relays send COMTRADE files packed in zip files over IEC
61850. SICAM DISTO recognizes such files and unpacks them into the right
directories. Using IEC 61850, SICAM DISTO expects the transmission of
fault records per MMS. The option with FTP is not supported. If using IEC
60870-5-103, DISTO prepares in addition an event list with all protection-
relevant information, such as fault number, fault distance etc., both with
absolute and relative real time (within a storing disturbance).
Detail

7. Detail

8. Mob No:
Mr. Piyush Rathi- +91-9819614841
Website:
www.reliservsolution.com
Email-ID:
piyush@reliserv.in
sales1@reliserv.in
Address:
Office No: 9, Space Heights,
Plot No. 53/54 , Sector 34,
Kamothe,Navi Mumbai- 410209
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