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Mode of supervisory relay for alarm outputs for ND30, ND30IoT meters

Function can be ordered with new meter as well as activated on the device which have been alredy installed on the facility after softwate upgrade (from 1.07 version). 

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To make function active, please order appropriate licence key (here)  - LKEY type.

  • Supervisory relay mode enables detection of following events:
    • voltage drop or growth
    • current drop or growth
    • phase loss
    • current or voltage unbalance
    • phase sequence
  • User can specify:
    • the thresholds of monitored events
    • monitoring of phase relay
    • memory of relay state
    • deley of switch-on/off relay
    • relay state after the event has occured.