Insulation monitoring device — Marine AC application example
Insulation monitoring device — Marine AC application example
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1 Scope This document explains the setting parameters of insulation monitoring devices (IMDs) and how to interpret these measurements through plotted curves. Some examples of injection methods are also proposed. NOTE 1 Requirements for IMDs are specified by IEC 61557‑8 . The examples given in this document consider the situation of an insulation fault in an installation or equipment (motors, enclosure, cables, etc.) creating a resistive path to earth and calculate the touch voltage. It does not consider a person making direct contact with a live conductor in an IT grid. NOTE 2 This document is informative and cannot contain requirements, in accordance with the ISO/IEC Directives, Part 2, for technical reports.
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