NDGZC-III series cable fault tester

　　Features:

　　● The instrument uses low-voltage pulse method and high-voltage flashover method to detect various faults of the cable. Especially for the flashover and high-resistance fault of the cable, it can be directly tested without burning through. If equipped with a sound measuring legal point meter, the exact position of the fault can be accurately determined;

　　● The instrument adopts high-speed data sampling technology, the A/D sampling speed is 100MHz, and the detection blind zone is 1m;

　　● With waveform and parameter storage, recall function, using non-volatile devices, waveforms and data are not easy to lose after shutdown;

　　● With dual trace display function, the test waveform of the faulty cable can be compared with the normal waveform, which is conducive to further judgment;

　　● With waveform expansion ratio function, change the waveform scale, expand the waveform for accurate test;

　　● The position of the double cursor can be arbitrarily changed to directly display the direct distance or relative distance between the fault point and the test point;

　　● It has the function of modifying the propagation speed at any time according to different tested cables.

 

　　The main parameters:

　　1. Fault tester

　　2. Precise positioning instrument

　　The NDWY-II buried cable positioning detector is composed of NDWY-II transmitter （pathway instrument）, NDWY-II type receiver （fixed point meter）, inductive probe and potential difference detector.