3 Installation and Commissioning
118
6MD665 Manual
C53000-G1876-C103-3
WARNING!
Warning of dangers evolving from improper primary tests
Non–observance of the following measure can result in death, personal injury or sub-
stantial property damage.
Primary test may only be carried out by qualified personnel, who are familiar with the
commissioning of protection systems, the operation of the plant and the safety rules
and regulations (switching, earthing, etc.).
3.3.1
General information about the intelligent switchgear bay
When using the intelligent switchgear bay, the process connection is made over the
SICAM HV modules SCM, DBC and ITU, and not, as before, directly on the SIPRO-
TEC
®
4 device. For this reason, the SICAM HV modules are to be taken into account
during commissioning and the correct set-up of the process bus connection between
the process control device and the PCU (Process Communication Unit) is to be
checked. This procedure is sketched out in Section Checking the process bus inter-
face.
3.3.2
Test Mode and Transmission Block
Activation and
Deactivation
If the device is connected to a central or main computer system via the SCADA inter-
face, then the information that is transmitted can be influenced. This is only possible
with some of the protocols available (see Table "Protocol-dependent functions" in the
Appendix A).
If Test mode is active, then a message sent by a SIPROTEC
®
4 device to the main
system has an additional test bit. This bit allows the message to be recognized as
resulting from testing and not an actual fault or power system event. Furthermore it
can be determined by activating the Transmission block that no indications at all are
transmitted via the system interface during test mode.
The SIPROTEC
®
system description /1/ describes how to activate and deactivate test
mode and blocked data transmission. Note that when DIGSI
®
is being used, the
program must be in the Online operating mode for the test features to be used.
Содержание SIPROTEC 6MD665
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Страница 166: ...4 Technical Data 152 6MD665 Manual C53000 G1876 C103 3 ...
Страница 201: ...A 9 Group Alarms 187 6MD665 Manual C53000 G1876 C103 3 A 9 Group Alarms No Description No Description ...
Страница 210: ...Literature 196 6MD665 Manual C53000 G1876 C103 3 ...
Страница 222: ...Index 208 6MD665 Manual C53000 G1876 C103 3 ...