Arc Fault Protection

AFR3-08 Arc Fault Protection

The Arc Fault Protection AFR3-08 provides conversion, transmission, storage, and display of signals from fiber-optic sensors in the event of an arc fault, as well as determining the location of the arc fault with the accuracy of a compartment.

The arc fault recorder AFR3-08 can be powered from a DC or rectified current source with rated voltages of 110 or 220 V, as well as from an AC source with a frequency of (50 ± 5) Hz and a rated voltage of 220 V. The operating voltage range is from 88 to 132 V (for voltage 110 V) and from 176 to 264 V (for voltage 220V).

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Applications

  • Reduce the harm of arc light to human body;
  • Reduce damage to equipment caused by arc short-circuit faults;
  • Avoid transformer damage caused by bus failure;
  • Protect the dc system in the station;
  • Ensure the stable operation of power substations;
  • Thermal power plant electrical section switchgear;
  • Wind farm and photovoltaic station switchgear;
  • Large municipal engineering project;

 

 

Specification

  • Operating temperature range from ：minus 40 to plus 55 °C.
  • Relative air humidity： up to 98% at plus 25 °С and lower temperatures without moisture condensation;
  • Atmospheric pressure: from 73.3 to 106.7 kpa (from 550 to 800 mm Hg);
  • Installation height: above sea level is not more than 2000 m;
  • Protection of the front panel: IP54
  • Power specifications Voltage: range 66 V to 264 V
  • Permissible power interruption time up: to 2.4 s
  • Ready time: after switching on 0.25 s
  • Number of input signals: 4
  • Number of output signals :5

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