XHGG501A2+XHDD503B+XHGX507+XHHV535-4Z
Underground cable fault locator system
| Model number |
Product name |
| XHGG501A2 |
Cable fault pre-locator |
| XHDD503B |
Cable fault pinpointer |
| XHGX507 |
Cable fault comprehensive tester |
| XHHV535-4Z |
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 XHGG501A2
Description
Detailed operation videos help you get started easily
The TDR cable fault locator adopts an industrial-grade 12.1-inch touch-integrated computer and a simple operating software interface to realize human-computer interaction testing. Using industrial-grade integrated circuits and devices, built-in high-capacity lithium-ion battery, stable and reliable, 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 adopts modern electronic technology and computer technology to realize signal filtering, collection, data processing, graphic display, and graphic analysis. Cable speed measurement, cable length test, cable fault distance test.
Know more about power cables
Power cables can be divided into:
Low-voltage cables (cables with voltage levels of 6kV and below).
Medium-voltage cables (cables with voltage levels of 6kV and above, 35kV and below).
High-voltage cables (cables with voltage levels of 66kV and above).
And cable faults can be divided into open circuit faults, low resistance faults, leakage high resistance faults, and flashover high resistance faults according to their nature.
How to judge cable faults
In general, there are three ways to judge the nature of cable faults:
Judge by insulation resistance meter, multi-meter.
Judge by cable pre-test results.
Judge by "cable fault tester". Low-resistance and open-circuit faults (high-resistance) can be directly judged by the "low-voltage pulse method" test waveform of a multi-meter or a "cable fault tester".
Suitable for testing the faults of various cables
XHGG501A2 TDR cable fault locator is a special instrument for measuring and analyzing power cable status and fault distance. It is suitable for testing low resistance, short circuit, open circuit breakage faults, leaking high resistance and flashover high resistance faults of power cables, coaxial cables, street light cables, buried wires, etc. .
Features
• 12.1-inch industrial computer control, touch operation mode;
• Windows operating system, convenient operation mode;
• Possess the functions of measuring wave velocity and fault distance;
• Automatic continuous sampling, timely and accurate waveform capture;
• The instrument adopts the latest technology of embedded industrial computer, and also has the impact high-voltage flashover method and low-voltage pulse method;
• With user-friendly software and full English menu and screen touch button operation. button definition
Simple and clear. The measurement method is simple and fast;
• The success rate of fault detection, test accuracy and test convenience are superior to any domestic testing equipment;
• Ultra-high brightness, super-large LCD screen as a display terminal, which can be clearly observed in an environment exposed to direct sunlight screen waveform. The instrument has powerful data processing capability and friendly display interface;
• Massive test waveform storage function: the waveforms tested on site can be conveniently stored in the instrument according to the specified order, and can be recalled and observed at any time;
• With standard printer USB interface;
• Simple operation and high reliability. High cost performance;
• Built-in polymer lithium battery power supply, can test cable open circuit and low-resistance short circuit faults in the environment without power supply.
The figure above shows the cable fault distance measured by the high-voltage flashover method ICE (ARC single-shot) test method.
Packing List
| Instrument composition list and diagram |
| Name |
Qty. |
Name |
Qty. |
| TDR cable fault locator |
1 |
Double Q line |
1 |
| Stylus |
1 |
Sampler |
1 |
| Single Q line |
1 |
Power cable |
1 |
| Fuse |
some |
Ground wire
(optional) |
1 |
Onsite Use- High voltage flashover test method to measure cable fault distance
The figure above shows the cable fault distance measured by the high-voltage flashover method ICE (ARC single-shot) test method.
Onsite Use- low voltage pulse method to measure cable length/open circuit fault distance
The figure above is the cable open circuit distance measured by the low voltage pulse method
2. Cable fault pinpoint locator (XHDD503B)
Purpose
XHDD503B acousto-magnetic synchronous fixed-point instrument, used with high-voltage signal generator, is a portable and intelligent power cable fault precise positioning equipment, which integrates acousto-magnetic time-of-flight positioning technology, noise reduction technology, path auxiliary test and other technologies in one, providing multiple Various test modes and rich and varied prompt information, efficient, accurate and pleasant completion of cable fault location, is an essential tool for emergency repair of power cable faults.
Features
(1). Acousto-magnetic synchronous positioning technology is adopted to automatically calculate the acousto-magnetic time difference, reducing the dependence on sound monitoring.
(2)
Background noise reduction technology can effectively filter out environmental interference noise and highlight the discharge sound at the fault location.
(3)
Combining the traditional acoustic measurement method and the advanced acoustic magnetic method, the operator can choose freely according to the usage habits.
(4)
The gain value and trigger value of the acoustic signal and magnetic signal can be adjusted manually, which is more convenient for fixed point.
(5)
The parameters are adjustable, and the appropriate filter parameters can be selected to suppress environmental noise.
(6)
5-inch touch bright LCD to ensure visibility in sunlight.
(7)
Built-in large-capacity lithium-ion battery for power supply, equipped with a fast charger.
(8) Small and portable, light weight.
Technical indicators
1).Acousto-magnetic synchronous fixed-point function
(1) Sound channel
a) Bandwidth
All pass: 100Hz~1500Hz.
Low pass: 100Hz~400Hz.
Qualcomm: 150Hz~1500Hz.
Band pass: 200Hz~600Hz.
b) Maximum signal gain: >=100dB.
c) Fixed-point accuracy: 0.1m.
(2) Magnetic field channel
a) Maximum signal gain: >=100db
2) Acoustic-magnetic synchronization background noise reduction mode (BNR).
3) Bar graph indication of sound signal strength, adjustable sound trigger threshold
4)
Electromagnetic signal strength bar graph indication, adjustable magnetic field trigger threshold, with magnetic field trigger prompt function.
5)Acoustomagnetic time difference positioning mode: waveform display, the maximum acoustomagnetic time difference is 80ms, which can be automatically calculated and manually analyzed; it can record the last time acoustomagnetic time difference.
6). Power supply:
a) Battery: built-in lithium-ion battery pack, voltage 8.4V, capacity 2.4Ah
b) Use time: continuous use time > 8 hours;
c) Charger: input AC220V±10%, 50Hz; nominal output 8.4V, 1A
d) Charging time: <6 hours.
7).Display mode: 5-inch color LCD, 854*480 resolution, with touch function.
8). Operating environment temperature: -10°C-55°C, humidity 5-90% RH, altitude <4500m.
Operation and Function Introduction
The fixed-point methods of the instrument include acousto-magnetic mode and acoustic measurement mode.
(1) Acousto-magnetic mode: The instrument automatically draws the waveforms of sound and magnetic field signals, and automatically calculates the time difference of the acousto-magnetic signals, which is convenient and quick.
(2) Acoustic measurement mode: the user only completes the precise determination by monitoring the volume of the sound for comparison.
The operation mode of the instrument is divided into touch screen operation and one-key operation.
a. Touch screen operation, click the corresponding icon, the device displays the adjustment interface, and complete the parameter setting by dragging the slider or clicking the "+" and "-" icons.
b. One-button operation, turn the adjustment button after turning on the machine, the icon changes to indicate the selected situation, press the adjustment button to enter the adjustment interface, and rotate the adjustment button to set the adjustment parameters.
Packing list
| Item |
Name |
Qty. |
|
1
|
Cable fault pinpointer |
1 |
|
2
|
headphone |
1 |
|
3
|
probe |
1 |
|
4
|
7-core signal cable |
1 |
|
5
|
lithium battery charger |
1 |
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
XHHV535-4Z Portable High Voltage Surge Generator
Description
The portable high voltage surge generator is mainly used for impact discharge during fault testing of cables with voltage levels of 35kV and below; it can also be used for DC withstand voltage tests of other electrical equipment.
This device integrates DC high-voltage source, energy storage capacitor, and discharge ball gap into one. This equipment completely replaces the traditional test transformer weighing hundreds of kilograms, operation box and pulse energy storage capacitor (generally a set of 5kVA transformer weighs more than 60 kg, and the control box more than 30 kilograms, and more than 20 kilograms of pulse energy storage capacitors).
The power supply adopts high-precision, high-stability special high-voltage electronic components and high-frequency high-voltage technology, which makes the whole machine simple in structure and ultra-light in weight. The pulse generator adopts humanized design and operation mode, which is safe and reliable. It really achieves the effect of not being damaged by impact, and it can also work normally when the high voltage is short-circuited to the ground. It is currently the lightest and most user-friendly portable DC impact high-voltage equipment. It is an ideal product for power cable fault detection.
Technical parameters
| Impact high voltage |
0~28kV (0-32kV customized) |
| High voltage partial pressure |
1.5 level |
| Built-in capacitor |
4μF |
| Discharge power |
0-1568J (0-2048J customized) |
| Impact power |
400W |
| Over temperature protection |
85ºC |
| Volume(mm) |
420L×325W×480H |
| Weight |
not more than 40kg |
| Power supply |
AC220V±15%, 50Hz±2Hz(60Hz can be customized) |
| Ambient temperature |
-20~+50ºC |
Main performance characteristics
★ Impulse voltage: 0~28kV
★ High pressure partial pressure: 1.5 levels
★ Built-in capacitor: 4μF
★ Discharge power: 0~1568 J
★ Output voltage polarity: negative polarity
★ Impact power: 400W
★ Overcurrent protection: 16A (more than 3 seconds)
★ Over temperature protection: 65ºC
★ Volume: 430L×345W×545H
★ Weight: no more than 30kg
★ Working power supply: AC 220V±10%/50Hz±1Hz
★ Ambient temperature: -20~+60ºC
Packing list
Welcome you contact us for more information of cable fault locators.
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