Cable Fault Tester Manufacturer

Key Technical Indicators:

1.Testing Methods: Low-voltage Pulsing Method, High-voltage Flashover Method.

2.Technical Specifications

Test Distance: For the low-voltage pulse method, the long test distance60KmDuring the high-voltage flashover test, the large test distance40Km。

System Test Accuracy: Less than20cm。

Pulse Amplitude:  Load Impedance50No content provided.250Vpp。

Length Options:  ﹤1KM、 ﹤3KM、＞3KMThree.

Sampling Frequency:  6Mhz、12 Mhz、24Mhz、48 Mhz  96 Mhz  192Mhz  

Resolution reading: 1m

Pre-set5The propagation speed of electromagnetic waves through cable media: oil-impregnated paper, non-dripping:160m/μsCross-linked polyethylene172m/μsPolyvinyl Chloride (PVC)184m/μsWave propagation speed for other types of cables is set automatically.

For other types of cables, using the machine's speed measurement function, the propagation speed of the electromagnetic wave in the cable can be measured after entering the known full length of the cable type.

3.Sampling Methods: Current Sampling, Voltage Sampling.

4.Work Conditions: Temperature-20  +55ºCRelative humidity90%。

5.Volume:430×300×190mm。

6.Weight: Approximately10kg。

Testing Principle:

Cable faults are generally categorized into two main types: short circuits, open circuits, low-resistance faults, and high-resistance arc-over, and leakage faults. Based on the principle of radar ranging, a pulse signal is emitted towards the cable from the testing end. At points of characteristic impedance mismatch, a reflected wave is generated. The incident and reflected waveforms are then captured and displayed on the screen, with dual electronic cursors placed at two characteristic inflection points of the waveform. By measuring the propagation speed of the electromagnetic wave in this type of cable, the distance from the fault point to the testing end can be calculated.

S = VT / 2

SFault Point Distance from the Test End

VThe propagation speed of radio waves through cables.

TThe time it takes for a radio wave to travel back and forth between the cable test end and the fault point.

Please provide the Chinese content you would like translated into American English.VNo Chinese content provided. Please provide the text to be translated.TUnder the known circumstances, a calculation can be made.SSimply place the dual electronic cursor on the characteristic inflection points of the waveform, and it will automatically complete.