Time-domain reflectometers
Time-domain reflectometers are used as standalone devices for determining the length and the velocity factor of electrical cable lines, and as part of cable test vans or mobile cable fault locations systems – for determining the distance to and a type of a fault.
Three-phase reflectometers allow for effective detection of low-resistance faults through a comparative analysis of the cores in the cable line as well as for an automatic determination the nature of the wave resistance inhomogeneities.
The distance to cable faults may be determined using either a low-voltage method of pulse reflectometry (TDR) or advanced high-voltage methods of remote localisation (ARC, ICE, DECAY) with minimal negative effects on the healthy cable insulation.
Additional advantages of the reflectometer by KharkovEnergoPribor Ltd. include a convenient touch control, an ability to export measurements data to a PC, and the use of ARC multi-shot technology (aka MIM) which allows to obtain more reliable results when using arc reflection method of pre-location.
