Siemens SIPROTEC 7VU681, Руководство пользователя

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Mounting And Commissioning
3.1 Mounting And Connections
SIPROTEC, 7VU681, User Manual
C53000-G1176-C368-1, Release Date 07.2012
60
3.1 Mounting And Connections
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
environment (for example, ANSI, IEC, EN, DIN, or other national and international regulations). These
regulations must be observed.
3.1.1 Configuration Information
Prerequisites
For mounting and connection the following requirements and conditions must be met: The rated device data
has been tested as recommended in the SIPROTEC 4 System Description /1/ and their compliance with these
data is verified with the Power System Data.
Connection Variants
Overview diagrams are shown in Appendix A.2. Connection examples for current and voltage transformer
circuits are given in Appendix A.3. It must be checked that the setting configuration of the Power System Data
1, Section 2.5, corresponds with the connections.
Currents/Voltages
Connection diagrams are shown in the chapter 2 Function.
Binary Inputs and Outputs
Allocation possibilities of binary inputs and outputs, i.e. the individual matching to the system are described in
the SIPROTEC 4 System Description /1/. The presettings of the device are listed in Appendix A, Section A.3.
Check also whether the labelling corresponds to the allocated message functions.
Changing Setting Groups
If binary inputs are used to switch setting groups, please observe the following:
• Two binary inputs must be dedicated to the purpose of changing setting groups when four groups are to be
switched. One binary input must be set for " >Set Group Bit0 ", the other input for " >Set Group Bit1 ".
• If either of these input functions is not assigned, then it is considered as not controlled.For the control of 2
setting groups one binary input is sufficient, namely "
>Set Group Bit0
", since the non-assigned binary input
" >Set Group Bit1 " is then regarded as not connected.
•
The control signals must be permanently active so that the selected setting group is and remains active.
Where:
no = not energized or not connected, yes = energized If binary inputs are used to change setting groups, please
observe the following: