Mounting and Commissioning
3.1 Mounting and Connections
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
232
3.1 Mounting and Connections
General
WARNING!
Warning of improper transport, storage, installation, and application of the device.
Non–observance can result in death, personal injury or substantial property damage.
Trouble-free and safe use of this device depends on proper transport, storage, installation, and application of
the device according to the warnings in this instruction manual.
Of particular importance are the general installation and safety regulations for work in a high-voltage environ-
ment (for example, IEEE, ANSI, VDE, IEC, EN, DIN, or other national and international regulations). These reg-
ulations must be observed.
3.1.1 Configuration Information
Prerequisites
For installation and connections the following conditions must be met:
The rated device data is checked as recommended in the SIPROTEC 4 System Description. The compliance
of these data is verified with the Power System Data.
Connection Variants
General Diagrams are shown in Appendix A.2. Connection examples for current transformer and voltage trans-
former circuits are provided in Appendix A.3. It must be checked that the setting of the P.System Data 1,
Subsection 2.1.3.1, was made in accordance with the device connections.
Currents
In Appendix A.3 examples for the possibilities of the current transformer connections in dependence on
network conditions are displayed.
For normal connection, address 220 I4 transformer = In prot. line must be set and furthermore,
address 221 I4/Iph CT = 1.000.
When using separate ground current transformers, address 220 I4 transformer = In prot. line must
be set. The factor 221 I4/Iph CT may deviate from 1. For calculation hints, please refer to Section 2.1.3.1
at „Current Transformer Connection“. Please observe that 2-CT-connection is permitted only for isolated or
compensated networks.
Voltage Connection Examples
This section is only relevant if the measured voltages are connected to the device, a condition that was already
set during the configuration (address 144 V-TRANSFORMER, see Section 2.1.1.2)
Connection examples for current and voltage transformer circuits are provided in Appendix A.3.
Binary Inputs and Outputs
The connections to the system depend on the possible allocation of the binary inputs and outputs, i.e. how they
are assigned to the system. The default settings of the device are listed in Tables A.5 in the Appendix. Check
also that the labelings on the front correspond to the allocated indication functions.
To Next Page
Loading...
Need help?
General
