Mounting And Connections; Configuration Information - Siemens SIPROTEC 7SK80 Manual

Mounting and Commissioning

3.1 Mounting and Connections

3.1 Mounting and Connections
General
WARNING!
Warning of improper transport, storage, installation or assembly of the device.
Failure to observe these precautions can result in death, personal injury, or serious material damage.
Trouble-free and safe use of this device depends on proper transport, storage, installation, and assembly of the
device according to the warnings in this device manual.
Of particular importance are the general installation and safety regulations for work in a high-voltage environ-
ment (for example, ANSI, IEC, EN, DIN, or other national and international regulations). These regulations must
be observed.
3.1.1

Configuration Information

Prerequisites
For installation and connections the following conditions must be met:
The rated device data have been checked as recommended in the SIPROTEC 4 System Description. It has
been verified that these data comply with the power system data.
General Diagrams
Block diagrams for the terminal assignment of the 7SK80 are shown in Appendix A.2. Connection examples
for the current and voltage transformer circuits are provided in Appendix A.3.
Voltage Connection Examples
Connection examples for voltage transformers are provided in Appendix A.3. It must be checked that the con-
figuration of the Power System Data 1 (Section 2.1.3.2) corresponds with the connections.
The normal connection is set at address 213 VT Connect. 3ph = Van, Vbn, Vcn.
When connecting an open delta winding of the voltage transformer set, address 213 VT Connect. 3ph must
be set to Vab, Vbc, VGnd.
Another example shows the connection mode 213 = Vab, Vbc, Vx. The voltage connected to the third trans-
former Vx is only used by the flexible protection functions.
Furthermore, you will find connection examples for Vab, Vbc.
Binary Inputs and Outputs
The configuration options of the binary in- and outputs, i.e. the procedure for the individual adaptation to the
plant conditions, are described in the SIPROTEC 4 System Description. The connections to the plant are de-
pendent on this configuration. The presettings of the device are listed in Appendix A.5. Please also check that
the labelling strips on the front panel correspond to the configured message functions.
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SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010