Siemens SIPROTEC 4 7SJ61 - Mounting and Connections

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.
²
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.
²
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.
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 7SJ61 are shown in Appendix B Terminal Assignments.
Connection examples for the current and voltage transformer circuits are provided in Appendix C Connection
Examples.
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
dependent on this configuration. The presettings of the device are listed in Appendix E Default Settings and
Protocol-dependent Functions. Please also check that the labeling strips on the front panel correspond to the
configured message functions.
Setting Group Change
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.
The following table shows the allocation of the binary inputs to the setting groups A to D and a simplified
connection diagram for the two binary inputs is illustrated in the following figure. The figure illustrates an
example in which both Set Group Bits 0 and 1 are configured to be controlled (actuated) when the associated
binary input is energized (high).
Where:
no =
not energized or not connected
yes = energized
3.1
3.1.1
Mounting and Commissioning
3.1 Mounting and Connections
232 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016