Power Cable Fault Detector Grounding Cable Fault Distance Tester

Product Overview

Description

 

 

System use:

Accurate and rapid detection of main insulation faults of 35KV and below voltage level power cables; calibration of cable length; accurate detection of cable burial direction and depth.

System configuration:

Cable fault testing system	Product Name	Specification	Quantity	Remark
	Cable fault flashometer	LXGG502	1 Unit	Multiple pulses
	Cable fault locator	LXDD503A	1 Unit	Including host, acousto-magnetic synchronous sensor and high noise-resistant headset
	Cable Path Recognition Instrument	LXGX507	1 Set	Multi-function
	High Voltage Pulse Generator with Bullet Type	LXHV535-4S	1 Unit	High Voltage Partial Built-in Coupler

 

 Main technical parameters of the system:

1) Industrial computer control, touch operation mode, strong anti-interference ability;

2)System functions: fault distance measurement, fault location, propagation speed test, cable path finding, buried depth detection;

 3)Testing methods: low-voltage pulse, flashover method, audio method, acoustic-magnetic synchronization method, Valley method, peak method, electromagnetic induction method, etc.;

4)Test Range: Test Distance: 60km, Detection Depth: 2-5M;

5)Measurement accuracy: Rough error: +10m (absolute value) or 1% (relative value), precision error: +0.1m (fixed point, path, depth);

6)Sampling frequency: 60/120/240MHz, minimum resolution 0.5m (100m/us)

7)Sampling mode: automatic continuous sampling, never omitting any discharge waveform

8)Low Voltage Pulse: Width: Adaptive Amplitude: 400Vpp

9)Output power: path power: 100W

10)Impact High Voltage: 0-35kV

11)Short circuit current: 0-320mA

12)Burn-through power: 0-1225J

Technical description of system components

1,Cable fault flashometer LXGG502

major function:

12-inch industrial computer control and touch mode of operation;

XP operating system. (Optional Visual Wireless Expert Guidance, 4G Network;)It has the functions of ranging and velocity measurement;

Sampling frequency 60/120/240, minimum resolution 0.5m (100m/us)

Fully automatic continuous sampling, never omitting any discharge waveform;

Test methods: flashover sampling and low voltage pulse sampling

Main technical indicators:

Pulse Amplitude: 400Vpp

Measuring distance: Smax: 60km Smin: 5m

Measurement error: absolute error of rough measurement: +10m; relative error of rough measurement: +1%  (DL/T849.1-2004 does not exceed (+1%L+20)m, where L is the length of the cable)

Power supply mode: built-in 12V/10Ah DC power supply, can work continuously for 6 hours or external AC 220V 50Hz power supply

2,Cable fault locator LXDD503A

purpose

Acousto-magnetic synchronous point-fixing instrument, which is used with high voltage signal generator, is a portable and intelligent power cable fault-fixing instrument. Acousto-magnetic synchronous method is used to locate accurately the point-fixing cable fault.

 

Functional characteristics

_Acousto-magnetic synchronous fixed-point method is adopted.

_Background noise reduction technology can effectively filter out environmental interference noise and highlight the discharging sound at fault location.

_Intelligent fixed-point method, through intelligent algorithm directly gives the acoustic and magnetic delay value, reduces the requirements for testers.

_The filter parameters of sound channel can be adjusted, and the appropriate filter parameters can be selected to suppress environmental noise.

_Automatic gain function, magnetic field trigger gain automatic adjustment, more convenient fixed point.

_High-performance anti-noise listening earphone.

Semi-transparent semi-reverse liquid crystal display to ensure visibility in sunlight.

Built-in large capacity lithium-ion battery power supply, with fast charger.

Small and portable, light weight.

 

Technical Indicators

Bandwidth: upper and lower cut-off frequencies can be set

Gain: >= 110 dB.

_Accuracy: 0.1m.

Power supply: built-in lithium-ion battery pack, nominal voltage 7.4V, capacity 3400mAH

It can be used continuously for more than 9 hours.

AC 220V + 10%, 50Hz; nominal output 8.4V, 1A

_Display: 320 x 240 liquid crystal

_Volume: Host 200 mm x 195 mm x 120 mm

Mass: host 2.0kg; sensor 2.5kg

_Environment: Temperature: - 10 ~40 C, humidity 5-90% RH, altitude < 4500m.

3,Cable Path Identifier LXGX507

purpose

XHGX507 cable path identification instrument uses the principle of electromagnetic induction to detect the precise direction and depth of underground cables and locate the open, short circuit and skin fault points of cables. It can be used not only to find the path of cable (live or non-live), but also to find the fault of buried cable.

Major component:

 The cable path identification instrument is mainly composed of receiver and transmitter, transmitting clamp, receiving clamp and A-frame.

Indicator parameters

A) Working mode: Continue square wave signal

B) Output/Acceptance Signal: Audio

C) Working power supply: 220V (1 + 10%) 50Hz (1 + 5%);

D) Output power: 100W;

1. Receiver

Working frequency: low frequency (815Hz), medium frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz), 50Hz

Antenna mode: trough method (zero mode), peak method (peak mode) and step voltage method (A frame)

Sound Indication: FM Tone Variable with Signal Intensity

Current Indicator: Display the Valid Current Value of the Cable under Test (Unit: mA)

Working temperature: - 10 C + 55 C

Battery model: 6 No. 2 alkaline batteries

Electricity Indicator: Graphic Display

Battery Life: Continuous Work > 8 Hours: Intermittent Work > 16 Hours

Signal Intensity Representation: Ladder Diagram, Digital Range 0-999

Gain control: Manually adjust dynamic range to 100dB

Depth of exploration: maximum depth of exploration not less than 5 meters

Maximum detection distance: when connected directly, the maximum insulated cable can reach 15km

Depth measurement: 3-digit display by depth key, the maximum depth can reach 10 meters

Accuracy*: Low Frequency: +(1-5)%<2.5 m Radio Frequency: +(5-12)%<2.5 M

* Depending on the site environment, the shape of non-concentric lines, the number of adjacent pipelines and the return current of the soi

2. Transmitter

Working frequency: low frequency (815Hz), medium frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz)

Working mode: direct connection method, coupling method (caliper method), induction method

Matched load: 5-3000 ohms

Impedance display: five digits

Overheat and Overcurrent: Automatic Protection

Power output: low, medium and high gear

Battery type: rechargeable battery

Battery life: 4 to 8 hours of continuous operation depends on the frequency and output power used.

Intermittent work from 6 to 10 hours depends on the frequency and output power used.

Working temperature: - 10 C + 55 C

4,LXHV535-4S High Voltage Pulse Generator

Purpose:

The push-cart high voltage pulse generator fully meets DL/T846-2004 "General Technical Conditions for High Voltage Testing Equipment" and DL/T474-2006 "Guidelines for the Implementation of Field Insulation Test". It is mainly used for impulse discharge and withstand voltage test of low-voltage and high-voltage cable fault test.

Instrument composition

The device integrates DC high voltage source, pulse energy storage capacitor, discharge ball device, automatic discharge device and cable fault tester as one of the high-end pusher experimental instruments.

Main performance characteristics

The output of high voltage pulse is uniform and controllable.

With current and voltage double 1.5 level indicator display, intuitive and clear, impulse discharge process at a glance;

High voltage side voltage measurement, real-time accurate;

It has zero start protection function and is safe and reliable.

Unique high-voltage measurement design, in the stop state, will automatically release the internal capacitance of the equipment;

Discharge time can be selected by timing and manual mode.

It has DC voltage withstanding function.

Installation of high precision test cable fault sampling waveform module;

Humanized design trolley, easy to move.