ABB RELION 620 Series Technical Manual page 588
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Also See for RELION 620 Series:
- Technical manual (1224 pages) ,
- Operation manual (152 pages) ,
- Applications manual (90 pages)
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Section 6
Supervision functions
582
A070968-ANSI V1 EN
Figure 293:
Constant test current flow in parallel trip contacts and trip circuit
supervision
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.
1MAC504801-IB E
620 series ANSI
Technical Manual
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