STS is an escrow service that protects both buyers and suppliers. Funds are held securely by Made-in-China.com until order terms (e.g., delivery, quality) are fulfilled
| Customization: | Available |
|---|---|
| After-sales Service: | Warranty Certificate |
| Warranty: | 12 Months |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
Payment Guarantee
Platform-protected payments with refund support for eligible order issues.
Platform Logistics
Inspection Service
After-Sales & Dispute Handling
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
| XHGG501E | Cable fault pre-locator |
| XHDD503C | Cable fault pinpointer |
| XHHV535-2L | High voltage surge generator |
This cable fault location system is designed for detecting insulation faults in cables rated at 11 kV and below (primarily 11 kV), covering open-circuit, short-circuit, low-resistance, and high-resistance faults. It is portable, lightweight, and easy to transport, allowing for single-person operation. The system features a high level of intelligence: the distance meter offers automatic ranging, while the pinpointing unit utilizes acoustic-magnetic synchronization for fast and convenient fault localization. Additionally, the equipment can be used to detect low-resistance faults on 33 kV cables.
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), High voltage flashover( ICE(Impulse current)/Decay)
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, the waveform display is smooth and easy to interpret.
• 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 | 80MHz |
| Low voltage pulse amplitude | 100V±15% |
| Ranging range | ≥65km |
| Test range | 300m/1km/5km/25km/65km |
| Pulse width | 0.125uS/0.50uS/2.50uS/7.25uS/10.0uS |
| Minimum resolution | 0.1m |
| Test blind area | ≤20m |
| Measurement error | ≤±(0.5%×L+1m), L is the cable length |
| Power supply mode | charging AC110V~240V, 50Hz/60Hz |
| Volume and weight | L358mm×W284mm×H168mm-4.7kg |
| Working conditions | Temperature -20ºC~+65ºC, relative humidity 90%, atmospheric pressure 750±30mmHg |
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".
It complies with the standard requirements for acoustic and magnetic fixing in the standard "DL T 849.2-2019 General technical conditions for special testers for power equipment Part 2: Cable fault locating instrument".
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.1-8dB adjustable |
| 3 | Magnetic channel gain | 8 levels adjustable.1-8dB adjustable |
| 4 | Output gain | 16 levels (0~112db) |
| 5 | Output impedance | 350Ω |
| Safety- Volume limiting to | 84dB | |
| 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. |
| Charging time | 3 hours | |
| 10 | Volume | 428L×350W×230H |
| 11 | Screen pixels | 854*480 |
| 12 | Brightness | 800nit |
| 13 | Transmission speed unit | 0-100ms |
| 14 | Accuracy | 1ms |
| 15 | Sound bandwidth | 100-1.6khz |
| 16 | Magnetic coil bandwidth | 100-20kHZ |
| 17 | Both sound and magnetism are | greater than 75db |
| 18 | Weight | 6.5kg. |
| 19 | Ambient temperature | -25~65ºC; Relative humidity: ≤90%. |
Working principle
This device uses the acoustic and magnetic synchronization method to accurately locate faults. It is a very accurate and unique positioning method. Its principle is based on the traditional acoustic point determination method and adds the detection and application of electromagnetic signals.
When the high-voltage generator performs impact discharge on the faulty cable, the sound generated by the discharge at the fault point is transmitted to the ground. The sound signal is picked up by a high-sensitivity probe. After amplification, a "pop" sound can be heard by listening with headphones.
The built-in probe of the probe receives the magnetic field signal in real time, and uses the principle that the propagation speed of the magnetic field is much higher than the propagation speed of sound to determine the distance of the fault point by detecting the time difference between the electromagnetic signal and the sound signal. Keep moving the sensor position to find the point with the smallest acoustic-magnetic time difference, then the exact location of the fault point will be below it.
Traditional acoustic measurement legal point instruments generally only use earphones to monitor, or are supplemented by the swing of the meter pointer to identify the discharge sound at the fault point. Since the discharge sound disappears in an instant and is not much different from the ambient noise, it often brings great difficulties to operators who are not very experienced. The acoustic-magnetic synchronization method effectively avoids the above problems of the traditional acoustic measurement method.
Description
The XHHV535-2L High voltage pulse generator is a tie-rod portable integrated device, which is mainly used for shock discharge during low-voltage cable fault testing. The pulse generator adopts humanized design operation mode, high-precision dedicated high-voltage electronic components and high-frequency high-voltage technology, which is easy to operate, light in weight and easy to carry.
It integrates the energy storage capacitor, DC high voltage source, and discharge ball gap. The operation of this equipment is safe and reliable, with automatic protection functions of over-current, overvoltage and overheating, it can truly achieve the effect of not being damaged by impact, and it can also work normally with high voltage to ground.
The XHHV535-2L High voltage pulse generator is equipped with a time relay, and the discharge time interval can be arbitrarily set within 0-100 seconds. When working, the high-voltage pulse output is uniform and controllable, high-voltage side voltage measurement, make the result real-time and accurate. Unique high-voltage measurement design, in the stop state, the voltmeter can indicate the capacitor voltage in real time. The user can observe the residual voltage while discharging, until the voltage value returns to zero, and finally make the discharge more thorough.
Technical parameters
| Impact high voltage | 0~32kV |
| High voltage partial pressure | 2.5 level |
| Built-in capacitor | 2μF |
| Discharge power | 0-1024J |
| Output voltage polarity | negative polarity |
| Impact power | 250W@peak |
| Working mode | Selectable or adjustable impulse rate and Single shot |
| Minimum Output current in DC mode | 7.5mA at 32kV |
| Length of test cable | The high-voltage output line of the pull-rod type high-voltage pulse generator is 2 meters long, the ground line is 3 meters long, and the power line is 1.8 meters long. |
| Over temperature protection | 65ºC |
| Over current protection | 8mA (more than 3 seconds) |
| Volume(mm) | 540L×300W×450H |
| Weight | not more than 25kg |
| Power supply | AC220V±15%, 50Hz±2Hz(60Hz) |
| Ambient temperature | -20~+60ºC |
| Cable length | High voltage output cable - 2 meters, ground wires - 2.5 meters, power cable - 1.8 meters. |
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~
){kind=link}