HR-196M Microcomputer Small Current Grounding Line Selection Device

  • Overview
  • Characteristic
  • Selection Guide


HR-196Mdevice apply to 0.4KV ~ 66KV level neutral point ungrounded or by resistance,arc suppression coil grounding of small current grounding system Can be widely used in power plant, substation, hydropower station, metallurgy, coal chemical industry, railway etc.of Power supply system of large industrial enterprises Power system. can rapidly and reliably indicate the single-phase grounding fault line.



  • This product is made of high performance cpu, fast calculation speed, high data processing ability.
  • Device for automatically judging system operation mode according to the change of zero sequence voltage of each bus, namely each bus parallel operation or segmentation operation.
  • Line selection device with interface function and remote device, can provide remote signal passive nodes, standard rs232, 485 line selection device with interface function and remote device, can provide remote signal passive nodes, standard rs232, 485 serial interface, suitable for unattended substation or comprehensive automation equipment.
  • No fixed value setting, the influence of the residual current increment method so that the device is not affected by the operation mode and the ground transition resistance.
  • Circuit alarm code output and alarm circuit of one to one output for the independent export module
  • Self check function: the implementation of the core circuit of hardware and software of the monitor device.
  • Self recovery function: device after power in whatever operation interface, if 2 minutes unmanned automatically enters the running interface ( except the machine alarm fault ).
  • Machine for the plug-in structure, repair and replacement of parts is very convenient
  • Chinese characters menu, simple operation, easy to understand, easy debugging.


Required to indicate the power supply(DC220 or DC110)、line selection circuit number、the number of the bus segment and whether configure the printer.
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