XHGG502A+XHDD503C+XHGX507+XHHV535-4TSC
Underground cable fault locator system
| Model number |
Product name |
| XHGG502A |
Cable fault pre-locator |
| XHDD503C |
Cable fault pinpointer |
| XHGX507 |
Cable fault comprehensive tester |
| XHHV535-4TSC |
High voltage surge generator |
I. System purpose:
- Accurately and quickly detect the main insulation failure of power cables; calibrate the cable length; accurately detect the direction and depth of the cable buried.
- Proof -testing of the cable with the standard D.C
- Finding the Fault -Distance on a cable.
- Pin- Pointing of cable faults on the ground.
- Tracing path-underground cables.
- Selecting a cable from a cable bundle.
II.Technical description of system
1.Cable fault pre-locator XHGG502A
Description
The cable fault tester adopts an industrial-grade 10.1-inch touch-integrated computer, a simple operating software interface, industrial-grade integrated circuits and devices, and a built-in large-capacity lithium-ion battery, which is stable, reliable, and easy to use.
This cable fault tester is a special instrument for measuring and analyzing the status and fault distance of power cables. This cable fault tester uses a combination of modern electronic technology and computer technology to achieve signal filtering, acquisition, data processing, graphic display, and graphic analysis. Cable speed measurement, cable length test, cable fault distance test.
This cable fault tester is suitable for low-resistance, short-circuit, open-circuit and disconnection faults of power cables, high-frequency coaxial cables, street light cables, and buried wires made of various materials with different cross-sections and media, as well as high-resistance leakage and high-resistance flashover. Network failure.
Work mode: TDR(low voltage pulse), ICE(Impulse current), ARM(Arc reflection method).
Features
• 10.1-inch full-color TFT touch display;
• Embedded system, safe, stable and simple display and operation mode;
• With the function of testing cable wave speed, cable length and fault distance;
• Fully automatic continuous sampling, waveform capture at all times, timely and accurate.
• Equipped with automatic test range setting, automatic waveform analysis and display of test distance.
• Full English menu, two operation methods of touch and coded buttons, simple, fast and reliable.
• Equipped with testing technology of low-voltage pulse method, high-voltage flashover method, and multiple pulse method (8 times), the waveform display is smooth and easy to interpret.
• When using the multiple pulse method, it is used with a pulse coupler to display 8 groups of high and low voltage waveform comparisons, which is convenient for automatic distance testing, manual analysis and distance measurement.
• The instrument has powerful data processing capabilities, making it convenient for users to manage and archive waveform files.
• Has a massive test waveform storage function: the waveforms tested on site can be conveniently stored in the instrument in the order specified by Chinese naming for recall and observation at any time; it can store more than 8,000 records of low-voltage pulses and high-voltage flashover waveforms, and multiple pulses More than 250 waveform records can be recorded, and waveform files can be imported into computer software for management and analysis using USB communication.
• Ultra-high brightness, LED backlight brightness reaches 280nit, resolution 1024*600, convenient for environments exposed to direct sunlight in operation.
Technical specification
| Sampling frequency |
1MHz~400MHz |
| Low voltage pulse amplitude |
300V±15% |
| Ranging range |
≥120km |
| Test range |
100m/300m/500m/1km/3km/5km/10km/25km/50km/100km |
| Pulse width |
0.15uS/0.30uS/0.60uS/1.20uS/2.4uS/5.0uS/7.5uS/10uS |
| Minimum resolution |
0.07m |
| Test blind area |
≤10m |
| Measurement error |
≤±(0.5%×L+1m), L is the cable length |
| Power supply mode |
charging AC110V~240V, 50Hz/60Hz |
| Pulse coupler withstand voltage |
DC 35kV |
| Volume and weight |
L358mm×W284mm×H168mm-4.7kg |
| Working conditions |
Temperature -20ºC~+65ºC, relative humidity 90%, atmospheric pressure 750±30mmHg |
2. Cable fault pinpoint locator (XHDD503C)
Description
The cable fault location instrument uses the acoustic and magnetic synchronization method to determine the power cable fault point. The electronic flashover is generated by the impact discharge generator, picked up and amplified by the corresponding probe, and the precise location of the fault point is determined by auditory and visual judgment. It is a device that completes the precise positioning of the cable fault point within the rough measurement range and collects the acoustic and magnetic time difference. It integrates positioning technology, path-assisted testing and other technologies, providing multiple test modes and rich and diverse prompt information to efficiently and accurately complete cable fault location.
This fixed-point instrument is suitable for low-resistance, short-circuit, open-circuit and disconnection faults of power cables, high-frequency coaxial cables, street light cables, and buried wires made of various materials with different cross-sections and media, as well as high-resistance leakage and high-resistance flashover fault.
Features
1. 5-inch touch-high brightness LCD ensures visibility under sunlight.
2. Adopt acoustic and magnetic synchronous positioning technology to automatically calculate the acoustic and magnetic time difference.
3. The gain value and trigger value of the acoustic signal and magnetic signal can be manually adjusted to adapt to various environments.
4. It has background noise reduction technology and can choose from a variety of filtering methods.
5. It has BNR background noise reduction and mute noise reduction functions.
6. It has path deviation indication.
7. Equipped with multi-layer physical isolation signal sensors, waterproof grade IP65.
8. Built-in large-capacity lithium battery, long standby time, equipped with fast charger.
9. Small and lightweight, easy to operate, and simple human-machine interface.
Technical indicators
| 1 |
Filter parameters |
All-pass: 100Hz~1600Hz.
Low pass: 100Hz~300Hz.
Qualcomm: 160Hz~1600Hz.
Bandpass: 200Hz~600Hz. |
| 2 |
Channel gain |
8 levels adjustable. |
| 3 |
Magnetic channel gain |
8 levels adjustable. |
| 4 |
Output gain |
16 levels (0~112db) |
| 5 |
Output impedance |
350Ω |
| 6 |
Acoustomagnetic positioning accuracy |
less than 0.2m. |
| 7 |
Path identification accuracy |
less than 0.5m. |
| 8 |
Power supply |
4*18650 standard lithium batteries. |
| 9 |
Standby time |
more than 8 hours. |
| 10 |
Volume |
428L×350W×230H |
| 11 |
Weight |
6.5kg. |
| 12 |
Ambient temperature |
-25~65ºC; Relative humidity: ≤90%. |
3. Cable route tracer(Cable fault comprehensive tester) (XHGX507)
Description
XHGX507 underground cable pipe locator is mainly used for cable fault location, cable identification, cable path and depth measurement. It can complete tasks that could only be accomplished by a few sets of instruments in the past.
Working principle
The underground cable pipe locator is designed based on the electromagnetic induction method and the application of the communication principle.
1.The electromagnetic signal is generated by the transmitter, and the signal is transmitted to the underground cable under test through different transmission connection methods.
2.After the underground cable induces the electromagnetic signal, an induced current is generated on the cable, and the induced current propagates along the cable to the distance.
3.In the process of current propagation, electromagnetic waves are radiated to the ground through the underground cable. When the receiver detects on the ground, the electromagnetic wave signal will be received on the ground above the cable.
4. The position, direction and fault of the underground cable can be judged by the change of the received signal strength.
Features
The large-screen LCD displays the signal strength, and the bar, arrows and voice prompts make it easy for the operator to judge the underground position of the cable and the fault point. One person can do it all.
All-digital design, clear large-screen LCD graphic display and reliable positioning
Portable and lightweight, easy to carry
Built-in rechargeable battery
Built-in ohmmeter to measure cable loop resistance
Can be used to detect insulation faults up to 2MΩ to ground
With backlight function to adapt to night operation
Built-in ohmmeter to measure cable loop resistance
Display cable depth and current
Main components
This cable pipe locator is mainly composed of transmitter and receiver, with accessories of two clamps, one A-frame and necessary connection wires.
Technical Parameters
Transmitter
| Working frequency |
low frequency (815Hz), intermediate frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz) |
| Working mode |
direct connection method, coupling method (caliper method), induction method |
| Matching load |
5 ohms-3000 ohms |
| Impedance display |
5 digits |
| Overheating and over current |
automatic protection |
| Power output |
low gear, middle gear, high gear |
Receiver
| Working frequency |
low frequency (815Hz), intermediate frequency (8kHz), high frequency (33 kHz), radio frequency (83 kHz), Passive frequency 50Hz |
| Antenna mode |
valley method (zero value mode), crest method (peak mode), step voltage method and clamp current method (A-frame) |
| Current indication |
display the effective current value of the cable under test (unit: mA) |
| Working temperature |
-10ºC+55ºC |
| Power indicator |
graphic display |
| Battery life |
continuous work> 8 hours: intermittent work> 16 hours |
| Signal strength indication |
ladder diagram, digital range 0-999 |
| Gain control |
manual adjustment, dynamic range of 100dB |
| Detection depth |
the maximum detection depth is around 10 meters |
| Maximum detection distance |
The cable with good insulation can be up to 15km in the direct connection method |
| Depth measurement |
press the depth key to display three digits, the maximum depth can be measured up to 10 meters |
| Accuracy |
Low frequency: ±(1-5)%≤2.5m Radio frequency: ±(5-12)%≤2.5m |
Packing list
| Item |
Name |
Qty. |
|
1
|
Receiver |
1 |
|
2
|
Transmitter |
1 |
|
3
|
Direct connect signal line |
1 |
|
4
|
Coupling line |
1 |
|
5
|
Ground pin |
1 |
|
6
|
Charger |
1 |
|
7
|
Ground wire |
1 |
|
8
|
A-frame |
1 |
|
9
|
A-frame connect line |
1 |
|
10
|
A-frame probe pin |
2 |
|
11
|
Transmitting clamp |
1 |
|
12
|
Receiving clamp |
1 |
Application case
XHHV535-4TSC Trolley High Voltage Surge Generator
Description
The XHHV535-4TSC high voltage surge generator can be used impulse discharge and withstand voltage test in low and high voltage cable fault test. High-precision test cable fault sampling waveform module and small transformer are installed inside, which can truly achieve the effect of not being damaged by impact, and it also has the functions of automatic timing impact, manual impact and withstand voltage test.
This device integrates a high-voltage DC source, an energy storage capacitor, a discharge ball device, an automatic discharge device, and a voltage level switching device into a cart-type high-end experimental instrument. It is a trolley-type high-end experimental instrument. The equipment completely solves the problems of ease of use, portability, safety and reliability of traditional experimental devices.
When the XHHV535-4TSC trolley-type high-voltage surge generator is in use, after selecting the function switch, press the start button to perform high-voltage boosting work. After use, press the stop button, and the internal system will automatically release the remaining high voltage on the accumulator.
Technical parameters
| Impulse high voltage |
0~32kV, 0~16kV, 0~8kV three gear adjustment |
| High voltage partial pressure |
1.5 level |
| Built-in capacitor |
4μF/32kV,16μF/16kV,64μF/8kV Adjustable three-speed adjustment |
| Discharge power |
0-2048J at each voltage level |
| Impact power |
2KVA |
| Burn current |
60m A @32kV, 120mA@16kV, 240mA@32kV |
| Output voltage polarity |
negative polarity |
| Impact time |
about 6-7 seconds for automatic impact, arbitrary control time for manual
impact |
| Indication |
High-voltage side voltage metering, indication of output voltage and current in real time |
| Operating mode |
Single trigger, cycle, DC |
| DC withstand voltage testing |
Output voltage adjustment and
indication range 0-32KV, Output current indication range 0-20A |
| Safe protection |
With zero start protection function, safe and reliable . Overvoltage, Over-current, Overheating protection. Automatic discharge after operation. |
| Connecting cable |
High voltage output cable: 5m, Protective earthing cable:5m, power cable: 3m |
| Over temperature protection |
85ºC |
| Volume(mm) |
550L×500W×1000H |
| Weight |
not more than 130kg |
| Power supply |
AC220V±10%, 50Hz±2Hz |
| Ambient temperature |
-20~+50ºC |
| Protection rating |
Not lower than IP54 |
| Certificate |
CE ISO |
Welcome you contact us for more information of cable fault locators.
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