Description
KRM362
AC Ground Fault Monitor, Latching Output, Analog Output, (3 Channel)
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For grounded or non-grounded live networks in land, marine and sub-sea installations
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True r.m.s. measurement not affected by heavily distorted Waveforms
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Non-resistive earth current offset function
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Restricted or Unrestricted earth fault detection
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Highest up meter reading on KPM362x, Pathfinder function identifies highest channel
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Analogue output proportional to meter reading (F-version)
Application
The digitally controlled KRM362x (3 channel) monitor flow of earth current between a non-grounded (IT) or grounded TN network and its protective earth. Unit can be used for either Restricted or Unrestricted earth fault detection.
The unit reads the level of earth leakage directly in mA. The standard range is 0-150mA. Larger scale values are available, typically 500mA, 1A, 2A, 5A and 10A.
An AC or DC auxiliary voltage is required for the unit. Start of monitoring function is inhibited when auxiliary power is switched on (default 2secs delay). In this way false tripping during power up, caused by initial charging of network spread capacitance, is avoided.
The meter and the triple-zone status LEDs give at a glance the clear safety message:
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NORMAL
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WARNING
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ALARM