![background image](http://html.mh-extra.com/html/abb/615-series-ansi/615-series-ansi_technical-manual_4665441.webp)
Section 6
1MAC050144-MB C
Supervision functions
434
615 series ANSI
Technical Manual
Figure 227:
Constant test current flow in parallel trip contacts and trip-circuit
monitoring
In case of parallel trip contacts, the recommended way to do the wiring is that the TCM
test current flows through all wires and joints as shown in the following figure.
Figure 228:
Improved connection for parallel trip contacts
Several trip-circuit monitoring functions parallel in circuit
Not only the trip circuit often have parallel trip contacts, it is also possible that the circuit
has multiple TCM circuits in parallel. Each TCM circuit causes its own supervising current
Summary of Contents for 615 Series ANSI
Page 1: ...Relion Protection and Control 615 series ANSI Technical Manual ...
Page 2: ......
Page 29: ...1MAC050144 MB C Section 615 series ANSI 22 Technical Manual ...
Page 389: ...Section 4 1MAC050144 MB C Protection functions 382 615 series ANSI Technical Manual ...
Page 485: ...Section 6 1MAC050144 MB C Supervision functions 478 615 series ANSI Technical Manual ...
Page 635: ...Section 10 1MAC050144 MB C Other functions 628 615 series ANSI Technical Manual ...
Page 711: ...Section 16 1MAC050144 MB C Glossary 704 615 series ANSI Technical Manual ...
Page 712: ......