High Voltage Portable mini cable visual fault locator Power cable testing equipment

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Product Overview


Product name:Portable Tdr Underground High Voltage Power Cable Fault Pinpoint Locator


The FLD-903P digital step voltage pinpointing device is a high capacity device integrated computer technology and digital signal processing technology.

It is used to pinpoint metallic sheath grounding fault of the underground power cable, special the single-core HV cable.

It is also used to assistant pinpoint the core-grounding fault when the sheath is broken.

It could also be used to test the fault cable resistive current by current transducer to section fault locating.

Matched with FLC-900D HV signal source, FLD-903P could be used to pinpoint the EHV cable sheath grounding fault.

Design Features:


FLD-903P digital step voltage pinpointing device 


Indicate the fault point direction directly, find the fault point easily

High sensitivity and widely responding range

Digital signal processing technology to display signal waveform directly. High anti-interference

Automatic zero setting to offset ground potential variation effect

Testing the resistive current by current transducer and cable fault section

High capacity rechargeable lithium battery.Max.15 hours work time

Low battery indication.

Auto power off when under-voltage and long-time no-operation

 Tech Specifications:


Signal receiving mode

Voltage signal: probe input

Current signal: current transducer input

Max. testing sensitivity

Voltage signal 0.1mV;Current signal 5mA

Signal max. input range

Probe 300V


Signal waveform, fault point direction, battery lever

Power supply

7.4V,2400Mah rechargeable


210mm×122mm×125mm;probe: Φ30×1100mm


Main unit:0.5kgs;probe:0.5kgs

Operating Temperature







Physical Characteristics:

Device includes:

Main unit, 2X probes, current transducer, check below fig.1 Figure1. Device appearance


Main unit panel:


1: LCD screen: display waveform, fault point direction, gain, battery level and so on  

2: On/Off: Press more than 1 second to start the device

3: Reset: Press it to change the testing position and re-testing

4: Gain+: Increase the signal gain

5: Gain-: Decrease the signal gain

6: Probe input: Connect with the probe for voltage signal input

7: Transducer input: Connect with the current transducer to test the current signal

8: Charger: Built-in battery charging



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