2 plus 2
(Mode 3b)
This mode offers the transmission of 2 double systems. One is trans-
mitted in the fast permissive underreach transfer trip (PUTT), the other
in the external trip initiation using the CT feature.
16 independent commands
(Mode 5D)
When using digital interfaces exclusively, up to 16 independent
command inputs can be transmitted transparently to the distant
station with operating mode 5D and can be routed to commands
outputs there. 4 Interface Command Modules IFC-P/D (for Binary I/O)
or one EN 100 interface (for GOOSE I/O) are necessary for this applica-
tion.
You can find information on assignment of the frequencies for the individual operating modes in the section
Protection Modes
Combination of Analog and Digital Interfaces
Multipath transmission can also be configured in the SWT 3000 system by using the Analog Line Interface
(LIA) and digital line interface (LID-1). This combination (like only analog or digital transmission) is possible for
stand-alone SWT 3000 units and for units integrated (iSWT) in the PowerLink PLC system.
You can find a detailed overview of the equipment combinations with the resulting applications in the
section
2.5.1 Analog Transmission Path
.
Transmission Paths
The following transmission paths can be used depending on the nature of the supply networks:
•
High-voltage overhead lines
•
High-voltage cables
•
Aerial and (buried) underground cables
•
Radio relay routes
•
Digital networks (SDH/PDH)
•
Fiber-Optic Module (FOM)
•
Ethernet networks
It results in the following possible applications:
Table 2-2
Possible Applications of the SWT 3000
Configuration
Option
SWT 3000 stand-alone for analog path
Digital alternate path
SWT 3000 stand-alone for digital path
Analog or digital alternate
path
SWT 3000 integrated in PowerLink PLC unit analog
Digital alternate path
SWT 3000 integrated in PowerLink PLC unit digital
Analog alternate path
SWT 3000 stand-alone with connection via FOM
Analog or digital alternate
path
SWT 3000 stand-alone with connection via FOM to the PowerLink
Digital alternate path
SWT 3000 stand-alone with connection of the digital interface via FOM to a PDH
or SDH multiplexer
Analog or digital alternate
path
2.2.3
2.2.4
Functional Description
2.2 Applications for Transmission
Smart Communication, SWT 3000 Teleprotection, Equipment Manual
35
C53000-G6040-C605-1, Edition 03.2020
