Siemens SIPROTEC 7RW80 Manual page 251

Grounding
Grounding means that a conductive part is to connect via a grounding system to → ground.
Grounding
Grounding is the total of all means and measured used for grounding.
Hierarchy level
Within a structure with higher-level and lower-level objects a hierarchy level is a container of equivalent objects.
HV field description
The HV project description file contains details of fields which exist in a ModPara project. The actual field infor-
mation of each field is memorized in a HV field description file. Within the HV project description file, each field
is allocated such a HV field description file by a reference to the file name.
HV project description
All data are exported once the configuration and parameterization of PCUs and sub-modules using ModPara
has been completed. This data is split up into several files. One file contains details about the fundamental
project structure. This also includes, for example, information detailing which fields exist in this project. This file
is called a HV project description file.
ID
Internal double-point indication → Double-point indication
ID_S
Internal double point indication intermediate position 00 → Double-point indication
IEC
International Electrotechnical Commission
IEC Address
Within an IEC bus a unique IEC address has to be assigned to each SIPROTEC 4 device. A total of 254 IEC
addresses are available for each IEC bus.
IEC communication branch
Within an IEC communication branch the users communicate on the basis of the IEC60-870-5-103 protocol via
an IEC bus.
IEC61850
Worldwide communication standard for communication in substations. This standard allows devices from dif-
ferent manufacturers to interoperate on the station bus. Data transfer is accomplished through an Ethernet net-
work.
SIPROTEC, 7RW80, Manual
C53000-G1140-C233-1, Release date 10.2010
Glossary
251