XZH TEST Low voltage cable fault locator set is designed for 1kV and below underground cable fault location.
Consist with a cable fault pre-locator(XHGG501D), a cable fault pinpointer(XHDD503B), a max impact voltage 10kV high voltage surge generator(XHHV510-10L) and a step voltage test method comprehensive tester XHGX507 that can also be used to detect cable path and buried depth, also it can be used as a cable identifier.
★Cable fault pre-location: with the reflectometer XHGG501D based on the low-voltage impulse reflection method(TDR), high voltage flashover method(ICE-impulse current test method).
★Cable fault pinpoint location: XHDD503B uses acoustic-magnetic synchronization method, digital display waveforms of sound and magnetic, judge cable fault point by time difference and earphone, make detection more easier.
The portable cable fault location system is configured with the removable TDR cable fault locator with ultra-high brightness, large LCD screen 10" display with touch control, making the process of fault pre-location quick, easy and efficient.
High voltage 500 J surge generator is accompanied by a surge levels switch which allows to achieve the maximum surge impulse energy at 10 kV.
It has features operator safety assurance systems and provides a reliable and comprehensive technical solution for low- and medium-voltage cables faults.
| XHDD503B |
Digital cable fault pinpointer |
| XHGG501D |
TDR cable fault pre locator |
| XHHV510-10L |
High voltage pulse generator |
| XHGX507 |
Cable fault comprehensive tester |
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1. 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.
2. 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.
3. 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.
4. 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. |
-
|
Cable fault pinpointer |
1 |
-
|
headphone |
1 |
-
|
probe |
1 |
-
|
7-core signal cable |
1 |
-
|
lithium battery charger |
1 |
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Accurately and quickly detect the main insulation failure of power cables with voltage levels of 1KV and below; calibrate the cable length; roughly test cable fault distance
- Pre-locating cable faults with the reflectometer XHGG501D based on the
low-voltage pulse reflection method (TDR),
high voltage flashover method (ie. ICE, DECAY),
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.
Technical Parameters
Product Features
• Industrial grade 10" LCD display, working temperature -20ºC~+60ºC
• 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
XHGG501D underground cable fault locator has two working modes: low voltage pulse method and high voltage
flashover method.
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Low voltage pulse generator XHHV510-10L
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The XHHV510-10L high-voltage pulse generator is mainly used for shock discharge during cable fault test.It can also be used for DC withstand voltage test of other electrical equipment.
This device integrates DC high voltage source, energy storage capacitor, discharge ball gap, etc. This device completely replaces the traditional hundreds of kilograms of test transformers, operation boxes and pulse energy storage capacitors (generally a set of 5kVA transformers are more than 60 kilograms, control The box is more than 30 kg, and the pulse energy storage capacitor is more than 20 kg).
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. In order to retain people's habit of using transformers and operation boxes to generate DC high voltage, this pulse generator adopts humanized design and operation mode, which is safe and reliable. Really achieve the effect of not being damaged by impact, and the short circuit of high voltage to ground can also work normally. It is currently the lightest and most user-friendly portable DC shock high-voltage equipment. It is an ideal product for power cable fault detection.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Product features
★ With over-current, over-voltage, overheating automatic protection function;
★ With DC withstand voltage, impact discharge function;
★ The high-voltage pulse output is uniform and controllable;
★ Super short-circuit protection function, which can make the high-voltage output directly short-circuit to the ground;
★ It has dual 2.5-level pointer meters for current and voltage display, which is intuitive and clear, and it is clear at a glance whether the fault point is fully discharged, and the discharge process is reflected in real time;
★ High-voltage side voltage measurement, real-time and accurate;
★ With zero start protection and potentiometer zero output function, it is safe and reliable;
★ Unique high-voltage measurement design, in the stop state, the voltmeter can indicate the capacitor voltage in real time;
★ The discharge time can be arbitrarily set within the appropriate interval;
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Technical data
| Impulse voltage |
0-12kV |
| High voltage partial pressure |
2.5 class |
| Built-in capacitor |
12μF |
| Discharge power |
0~864J |
| Output voltage polarity |
negative polarity |
| Over-current protection |
8mA (more than 3 seconds) |
| Impact power |
400W |
| Over temperature protection |
85ºC |
| Volume(mm) |
540L×300W×450H |
| Weight |
no more than 25kg |
| Working power supply |
AC 220V±10%/50Hz±2Hz |
| Ambient temperature |
-20~+60ºC |
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Panel introduction
1. Safety ground: The ground of the instrument shell must be reliably connected to the ground in order to prevent the instrument shell from being electrified or electric shock to personnel.
2. High-voltage ground: Also known as high-voltage tail, it must be grounded reliably to prevent high-voltage leakage and discharge. Poor contact may cause failure to boost the voltage, high voltage breakdown of the internal components of the instrument, and safety accidents caused by leakage or discharge inside the instrument.
3. Sampling ground: The negative terminal of the pulse energy storage capacitor has a high voltage and must be grounded reliably. It is used for sampling when the waveform is sampled under the high-voltage flashover state of the cable fault tester. (Without high-voltage flashover sampling, reliable grounding is still required).
4. Discharge button: Press this button to make contact with the ball gap, and discharge manually. (The duration of each key press cannot exceed 1s).
5. High voltage start button: When the start button light is on, it means that the voltage output is in the zero position. When the light is on, the start button is valid. If the start button light is not on after turning on the power switch, turn the voltage adjustment knob counterclockwise until the light is on. When the button light is on, press this button to start the device and generate high voltage output.
6. High-voltage stop button: When the test is completed or an abnormality occurs, press this button to cut off the high-voltage output, the high-voltage light goes out, and the internal discharge ball stops working. When the stop key is on, it means there is high voltage output, and when it is off, it means there is no high voltage output.
7. Over-current protection switch: When pressed, it means that the over-current protection function has started; when it is popped up, it means that the instrument has triggered the over-current protection.
8. Voltage adjustment: After turning on the device, you must first turn the knob counterclockwise to the end, press the start button, and then adjust clockwise to increase the output high voltage from small to large, and adjust counterclockwise to reduce the output high voltage from large to small.
9. Power switch: "I gear" turns on the AC 220V power supply switch, and "0 gear" turns off the system power.
10.The fuse holder: the place where the fuse of the AC 220V power supply system is installed.
11. Power socket: the working power supply of the instrument, AC 220V connection port.
12. Time setting: Set the discharge time interval.
13. Ammeter: indication of the current on the high voltage side.
14. Voltmeter: high voltage output voltage indicating kV meter.
15. High-voltage output (EMP): When impacting discharge, connect the high-voltage output line.
16. High voltage output (DC): When DC withstand voltage, connect the high voltage output line.
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Packing list
Application- underground cable fault location
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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.
The following photo shows all accessories of XHGX507
Technical Parameters
| 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
|
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We are a professional manufacturer of cable fault detection equipment, we can customize the special technical solution for you.
Welcome you contact us for more information ^_^.
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