Siemens Reyrolle 7SR5, Manual

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Function Groups and Function Elements
The default overcurrent application template includes functions that are typically used in this type of device.
The appropriate analogue inputs are provided in the 7SR542 2-winding transformer relay and 7SR543 3-
winding transformer relays.
Figure 2-6 , Figure 2-7 , Figure 2-8 , and Figure 2-9 below provide a summary of the functions available using
the analogue inputs.
Additional functionality that is not dependent on analogue input quantities is common to all 7SR54 devices is
not shown in the figures below, these include:
•
CB and plant control
•
Trip/close circuit supervision
•
Autoreclose functionality
•
User logic schemes
Example – 7SR542
The 7SR542 transformer application templates are summarized in Figure 2-6 and Figure 2-7 .
[dw_7SR5_7SR5420ApplicationTemplate, 1, en_US]
Figure 2-6 Application Template for 7SR5420 Devices
2.3
Basic Structure of the Device Functionality
2.3 Function Groups and Function Elements
Reyrolle 7SR5, Transformer Protection Device, Device Manual 29
C53000-G7040-C015-1, Edition 11.2019