The CAT03 is the basic Circuit Breaker Analyser and Timer in the DV Power portfolio. This is a standalone or PC controlled unit designed for timing and resistance measurements of one break per phase MV and HV switchgear. The three timing channels record the closing and opening of the main and resistor contacts instantaneously when a voltage is sensed over the breaker coil. This easy-to-use unit allows selection of different operational modes: Open (O), Close (C), Open-Close (O-C), Close-Open (C-O), and Open-Close-Open (O-C-O).

The main contact channels can also measure the resistance value of pre-insertion resistors if they are present within the circuit breaker. Test results can be printed on the 80 mm optional thermal printer in tabulated and graphical form. In-depth CB analysis is possible using DV-Win analytical software which comes as standard with all DV Power instrumentation.

  • Simple & easy to operate
  • 3 timing channels for main and resistive contacts
  • Resistance measurement of pre-insertion resistors
  • Download of test results on a USB memory stick
  • Detailed analysis of test results using DV-Win software
Included accessories

  • Mains power cable
  • Ground (PE) cable
  • USB cable
  • DV-Win software
Recommended accessories

  • Main Contact Cables 5 m with SCT clamps
  • External trigger cable 5 m with banana plugs
  • Cable bag
  • Transport case

DV-Win allows graphical presentation of measurements and timing test results using cursors and powerful zoom functions for detailed analysis. Colours, grids, scales and positioning of the test data are all controlled by the user. DV-Win supports an automatic unit conversion (e.g. cycles to seconds or mm to inches). The test records can be exported into all mainstream file formats.