Operation Principle - ABB Relion SMU615 Technical Manual

Section 6
Condition monitoring functions
6.1.4
154

Operation principle

The circuit breaker condition monitoring function includes different metering and
monitoring sub-functions. The functions can be enabled and disabled with the
Operation setting. The corresponding parameter values are "On" and "Off". The
operation counters are cleared when Operation is set to "Off".
The operation of SSCBR can be described with a module diagram. All the modules in
the diagram are explained in the next sections.
A071103 V4 EN
Figure 105: Functional module diagram
1MRS758407 B
SMU615
Technical Manual