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WXJK-Z Overhead Line Fault Tester
Belongs to category： Cable fault tester
Product Overview
The WXJK-Z Overhead Line Fault Tester is a newly developed line-to-ground fault detection device meticulously engineered by our company. It is suitable for locating single-phase-to-ground faults on overhead high-voltage lines with a length not exceeding 25 kilometers, providing precise fault point identification (note: the line must be de-energized during inspection). The instrument is applicable to both bare conductors and insulated cables, capable of accurately pinpointing concealed ground faults such as single-phase metallic grounding, arcing faults, faults through transitional resistance, insulator puncture, and surge arrester breakdown.
The WXJK-Z Overhead Line Fault Tester consists of a main unit, a current detection clamp, a high-voltage transmitter terminal, a receiver unit, test leads, ground stakes, insulated poles, and accessories. Communication between the main unit and the receiver utilizes a dual-mode 4G/LoRa system. The main unit controls the high-voltage signal output and transmits test results to the receiver. Communication between the current clamp and the receiver is via LoRa, sending signals detected by the clamp to the receiver.
The main unit features a 7-inch color screen for clear and intuitive fault indication, making test results immediately comprehensible. The receiver unit is equipped with a voice broadcast function, announcing test results and fault direction, significantly simplifying field operation. The current detection clamp and high-voltage transmitter terminal are compact, lightweight, and easy to install. Once mounted, they enable rapid completion of the line fault search process, greatly reducing operator workload and improving efficiency.
The WXJK-Z Overhead Line Fault Tester can locate ground faults on multiple lines. After the overhead line is de-energized, the high-voltage transmitter terminal applies a low-frequency high-voltage signal to the line. The current detection clamp picks up the signal on the cable. The main unit analyzes the pulse current and impedance to determine the presence of a ground fault, with the results displayed on the receiver's LCD screen and announced via voice broadcast.
Features & Characteristics
- Accurately determines the direction of a ground fault and measures the ground fault resistance value. Testing is convenient and rapid, eliminating the need to disconnect the Potential Transformer (PT).
- Applicable to insulated cables (the high-voltage transmitter terminal is attached to the corona ring/test point).
- Suitable for detecting various concealed faults on overhead lines, including single-phase metallic grounding, arcing faults, faults through transitional resistance, insulator puncture, and surge arrester breakdown.
- Offers two selectable output voltage levels: 8000V and 3000V, with an output current ≤100mA.
- Strong short-circuit detection capability; can detect direct short-circuit faults with a ground resistance of 0Ω.
- No external power source required. Capable of continuous operation for up to 10 hours on a full charge, sufficient for inspecting an entire line.
- Voice broadcast function announces detection results.
- Dual-mode 4G and LoRa communication between the main unit and the receiver.
Technical Specifications
| Function | Overhead Line Ground Fault Location |
|---|---|
| Power Supply | Main Unit: 29.6V 10400mAh Li-ion Battery Receiver / Current Clamp: 7.4V 2600mAh Li-ion Battery |
| Testing Method | Clamp-on CT (Current Transformer) |
| Display | 7-inch color LCD, Dimensions: 153.8mm x 85.6mm |
| Output Voltage | AC 3000V / 8000V |
| Output Current | ≤100mA |
| Ground Fault Resistance Range | ≤150kΩ |
| Line Reactance Range | ≤150MΩ |
| Location Accuracy | ≤0.2 meters |
| Output Frequency | 50Hz |
| Clamp Jaw Size | φ36mm |
| Data Upload | Main unit features a USB port for uploading test data. |
| Dimensions | |
| Main Unit | 355mm x 272mm x 164mm |
| Current Detection Clamp | 297mm x 118mm x 94mm |
| High-voltage Transmitter Terminal | 293mm x 116mm x 51mm |
| Receiver Unit | 445mm x 108mm x 45mm |
| Weight | |
| Main Unit | Approx. 8540g |
| Current Detection Clamp | Approx. 500g |
| High-voltage Transmitter Terminal | Approx. 420g |
| Receiver Unit | Approx. 460g |
| Total Weight (incl. accessories) | Approx. 25kg |
| Insulated Pole Length | Approx. 4300mm |
| Battery Level Display | Displays battery levels for Main Unit, Current Clamp, and Receiver. |
| LoRa Module Communication Range | Up to 5km (in open field conditions) |
| 4G Communication | Supported |
FAQ
1.When can I get the price?
We usually quote within 6 hours after we get your inquiry.
If you are very urgent to get price, please call us or tell us in your email so that we will regard your inquiry priority.
2. What about the leading time for production?
Honestly, it depends on the order quantity and the product. Usually our leading time is within 7 working days after order confirmed.
3. What is your payment terms?
We accept EXW,FOB, CFR, CIF, ect. You can choose the one which is the most convenient and cost effective for you.
4. How much will be the Shipping cost and time?
This will depend on the size of your goods and the method of shipping (by sea/ by air/by Express) and your designated port or airport. We will be grateful if you can spare us some minutes to evaluate the cost based on the information provided.
5. Could you please tell me the Warranty Period of your product?
Our warranty period is one year free and lifelong maintenance. If the product is damaged (if not man-made damage), in the first year,we will send free parts for replacement. Over warranty, maintenance is paid service.
6. What kind of Certificate can you provide?
We can provide the CE mark, ISO 9001 quality certificate, third party calibration certificate(CNAS) and factory test report.
7. Do you have Technical Backup to all customers from different countries?
To be sure,our technical support is always available and quick response.
We are manufacturer with much on-site testing experience, thus we know how to deal with your problems. Moreover, our engineers can go to your country to support if need.
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Contact WG Hipot
Mob: +86 136 1866 3321
Email: info@wghipot.com
Mobile/Whats app/Wechat: +86 136 1866 3321
Add: No. 335, B Dist., No. 4 Factroy, Optic Valley Industrial Area, Liufangyuan South Road No. 9, Donghu High Tech Dvpt. Zone, Wuhan, Hubei, China.
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