Test Procedures for Power Cable Fault
The cable fault tester must go through the following steps to find power cable faults:
(1) Understand the faulty cable: withstand voltage level, cable length, insulation medium, insulation resistance, buried path, and the cause of the fault.
(2) Analysis of the nature of the cable fault: use the "low voltage pulse" of the cable fault tester to test the length of all phase wires of the faulty cable and calibrate the radio wave transmission speed of the faulty cable; use the insulation resistance tester to measure the fault insulation resistance value.
(3) Select the appropriate test method: use a cable fault tester to perform a rough test of cable faults.
(4) Precise measurement of cable fault points: including the search for the direction and depth of buried cables and fault points precise positioning.
(5) Error analysis: Carry out error analysis (measurement error, transmission speed misinterpretation error, instrument error) on the cable fault test results.
XHGG501D underground cable fault locator, simple operation software interface, single-chip centralized control, touch operation mode, built-in large-capacity lithium-ion battery, stable and reliable, easy to use.
This cable fault locator is a special instrument for measuring and analyzing power cable fault status and fault distance. This cable fault locator adopts modern electronic technology to realize signal filtering, acquisition, data processing, graphic display and graphic analysis to complete cable speed measurement, cable length test, cable fault distance test, resistance test.
XHGG501D is suitable for low-resistance, short-circuit, open-circuit and disconnection faults, as well as leakage high-resistance and flashover high-resistance faults of power cables, coaxial cables, street light cables, buried wires, etc. of various materials with different cross-sections and different media.
Features
• Industrial grade 10" LCD display, working temperature -20℃～+60℃
• Single-chip centralized control, touch operation mode, strong anti-interference ability
• It has functions such as distance measurement, speed measurement and resistance measurement
• Fully automatic continuous sampling, waveform capture is timely and accurate
• With low-voltage pulse sampling method, flashover sampling method
• Built-in large-capacity battery pack, easy to use
• Adopt protective case, not lower than PI54
Technical parameters:
| Sampling frequency | 100MHz |
| Pulse width | 0.1uS/2uS |
| Minimum resolution | 0.5m |
| Test blind zone | ≤20m |
| Ranging range | ≤30km |
| Measurement error | ≤±(0.5%×L+1m), L is the cable length |
| Power supply mode | charging 220VAC±10%, 50Hz/60Hz; built-in 5200mAH lithium battery power supply; |
| Working conditions | -20～+60℃, relative humidity≤90%; |
| Volume(mm) | 358L×284W×168H |
| Weight | 4.6kg |
Product Tags:
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Professional TDR Cable Fault Locator For Fast And Precise Fault Detection And Analysis Images
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