Thursday, 03 December 2015 12:04 Written by 
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SIM Filter

SIM Filter

The CFL SIMF, Cable Fault Secondary Impulse Filter from SCOPE is the ultimate solution for locating underground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault accurately.

Cable Fault Secondary Impulse Filter CFL SIMF is mainly used for high resistance and flashing fault test for power cable with the voltage below 10kV, and for fault location with Secondary Impulse with the conjunction of Pre-locator and HV surge generator. Latest fault locating technique for high resistance and flashing faults is Secondary Impulse Method (SIM). This method offers highly reliable results for faults on any type of power cable. It converts the faults to low resistance nature by creating an arc across the fault. 

It is a passive filter having its own output power source. It uses the energy of the surge generator to create an arc at the fault point. A high voltage switch incorporated in the output circuit facilitates selection of SIM or ICM mode.


  • Compact, Lightweight and Rugged
  • User-friendly operation
  • Automatic soft discharge upon shutdown
  • Selector Switch for SIM and ICM Mode
  • Elegant, aluminium housing



  • Arc Stabilization Time: ≥20 ms
  • HV Input: up to  35 kV DC with Negative Polarity
  • Input Power Supply: 230V±10%, 50Hz AC Single Phase
  • Environment: -10˚C to 50˚C, 95% RH (Non-condensing)
  • Dimension: 380mm x 282mm x 535mm
  • Weight: 17kg
Read 8209 times Last modified on Wednesday, 06 January 2021 10:27
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