DEMA CPM 310 G, User Manual

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CPM 310 G: Internal Unit – Front View
 Case Earthing Continuity Contact
Provides the earthing continuity of the internal unit to the casing. The low-resistance spring contact is
rated for prospected earth fault current.
 Current Transformers
Transforms secondary current into useful signals to supply measurement and protection circuits with the
information they need. Current transformers are integrated into the internal unit – this guarantees fast
maintenance and replacement operations without having to carry out calibration procedures.
 Faraday Cage
Digital signal processors, microprocessors and other critical components are safely embedded within the
Faraday cage, clear of wave or field effects that may risk the performance of the relay.
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