XZH TEST Low and medium voltage cable fault locator set is designed for 35kV and below underground cable fault location.
Consist with a cable fault pre-locator(XHGG501D), a cable fault pinpointer(XHDD503C), and a max impact voltage 32kV high voltage surge generator(XHHV535-2L).
★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: XHDD503C 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 1000 J surge generator is accompanied by a surge levels switch which allows to achieve the maximum surge impulse energy at 32 kV.
It has features operator safety assurance systems and provides a reliable and comprehensive technical solution for low- and medium-voltage cables faults.
| XHDD503C |
Digital cable fault pinpointer |
| XHGG501D |
TDR cable fault pre locator |
| XHHV535-2L |
High voltage pulse generator |
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XHDD503C digital cable fault pinpointer
Introduction
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. The technical parameters comply with "GB/T 18268.1 Anti-interference requirements for test equipment used in industrial sites".
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%. |
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Accurately and quickly detect the main insulation failure of power cables with voltage levels of 35KV 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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High voltage pulse generator XHHV535-2L
The XHHV535-2L 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 |
0-32kV |
| Precision of KV-meter |
1.5 |
| Built-in capacitor |
2μF |
| Discharge power |
0~1000J |
| 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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XZH TEST is professional manufacturer of underground cable fault location system. We can provide you with customized services or provide the perfect solution for your cable fault detection program.
Welcome you contact us for more information ^_^.
Audited Supplier 
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