Introduction

XHGG502 ARC Cable Fault Pre Locator is a special instrument for measuring and analyzing power cable status and fault distance. It combines modern electronic technology and computer 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.

This cable fault locator adopts 12.1-inch industrial-grade computer control, windows operating system, touch operation mode, ultra-high brightness, large LCD screen display interface for user-friendly use, automatic continuous sampling, and real-time accurate waveform acquisition.

The XHGG502 ARC cable fault pre locator adopts the latest technology of embedded industrial computer and the most advanced "eight pulse method" (multiple pulse method) testing technology, so that any high-resistance fault presents the simplest short-circuit fault waveform similar to low-voltage pulse Features are easy to read. It also has the operation modes of shock high voltage flashover method and low voltage pulse method, which is convenient to detect various cable faults. The success rate of fault detection, test accuracy and test convenience are better than any domestic testing equipment.

Main features

• The reflected signal sent by the pulse coupler is automatically displayed, and the full-length waveform of the cable open circuit is displayed at the same time.

• Automatic calculation and display of fault distance;

• It has the function of storing massive test waveforms: the waveforms obtained from the field test 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. Has a very high cost performance;

• Built-in polymer lithium battery power supply, which can test cable open circuit and low resistance short circuit fault in no power supply environment.

The test working modes of XHGG502 ARC cable fault pre locator include low voltage pulse method, high voltage flashover method, and multiple pulse method. Here focus on the multiple pulse method that is different from other devices.

The purpose of using the multiple pulse method to test the cable fault is to make the sent low-voltage test pulse effectively avoid the cosine large oscillation interference that occurs at the moment of the high-voltage impact of the faulty cable, and obtain a standard and clear similar short-circuit during the relatively stable short-circuit arc at the fault point. The echo of the fault, and there is a large choice of ideal test waveforms.

Different impulse high voltages, different cable lengths, different cable fault distances, and the period and duration of large cosine oscillations are very different. The waveform collected by the simple secondary pulse method is often disturbed by the large cosine oscillation due to insufficient transmission delay time, and the waveform is chaotic and difficult to analyze. It can only be ensured by adjusting the delayed launch time of the test pulse or using a medium-voltage arc-extending device, which increases the difficulty of operation and the weight and cost of the equipment. The multiple pulse method just overcomes these difficulties and greatly simplifies the testing procedures. Eight sets of test waveforms are obtained from the high-voltage flashover process of one impact, and there are always several sets of waveforms that are convenient for fault distance interpretation. This is also the advantage of the multiple pulse method compared with the second pulse method.

Operation system show

High voltage flash-over method waveform analysis

Mulit pulse method(ARC)waveform analysis

Technical Data

On site pictures:

Packing list

Xi'an Xu&Hui Electromechanical Technology Co., Ltd. (XZH TEST) has found in 2013, located in Xi'an, China. which is a highly experienced team dedicated to developing electrical measurement instrument, the product line covers a wide range of devices for testing various electrical area, such as underground cable fault locating system, power transformer test, AC/DC Hipot test, Insulation resistance test and so on. With rich measurement experiences of innovation combining and advanced technology to provide the most reliable electrical measurement.

The design development production and Inspection is performed at the ISO 9001 and CE which gurantee a consistency of high quality products. XZH TEST masters a variety of technologies as well as extended service and support to deliver the highest value to our customers.

We sincerely hold the tenet of "quality first, customers supreme, honor commitment trust worthy".Stays commitment R&D about electric power detection equipment and electric power automation, since its foundation, the company keeps living up to the belief of: "Create high-quality brand, casting first-class enterprise image". Also, we make the "steady development, the best quality "as the core concept of the enterprise.

Our goal is to provide our customers with reliable test and measurement equipment that more safe and easy to use, we make measurement easier!

Xi'an Xu & Hui Electromechanical Technology Co., Ltd expect to strengthen the relationship with world-wide cooperators, and warm-heartedly welcoming business partners to visit our factory for developing the OEM & ODM win-win Cooperation.

Our Team

Factory scene

Training is a core course for all the members and we will organize various trainings to help us to improve our abilities and Let us find the beauty of life. We treasure the time we are learning and studying together.

Services

  We have the ability to innovate new products and technologies.

  We can provide complete system solutions for your project.    

  We provide online and offline practical and theoretical training.

  We provide instrument repair and calibration.

History

On February 1, 2013, Xi'an Xu&hui Electromechanical Technology Co., Ltd. was established.

In 2014,  the second-generation demagnetizer was launched, which quickly and thoroughly solved the residual magnetism problem of 750kV transformers. Successfully passed IS09001 quality system certification and Ce certification.

 In 2015,  we moved to a 600 square meter plant to solve the problem of on-site calibration of 1000kV lightning arrester monitors.

 In 2016,  the problems of large energy loss and difficult waveform analysis in cable fault detection were solved and an invention patent was obtained.

In 2017,  it was awarded the National High-tech Enterprise, and products were exported to more than ten countries and regions.

In 2018,  1SO 9001 Quality Management and ISO 14001 Environmental Management and ISO45001 Occupational Health successfully passed , and obtained the third-level qualification for general contracting of electric power and the fourth-level qualification for installation (repair and testing)

In 2019,  a self-owned and independent plant of 3,000 square meter. Smoothly carried out 220kV, 750kV and 1000kV special adjustment and maintenance test projects.

In 2020, Ubiquitous power detection platform, various cable fault simulation platforms were established, and "JJ Machinery 1042-2020 Cable Fault Tester Calibration Specification" was drafted and successfully passed

In 2021,  a 10kV and 110kV cable fault training system was established in a certain power school. Oscillating wave partial discharge and ultra-low frequency dielectric loss detection projects were promoted.

In 2022,  Successfully delivered several military cable inspection vehicles. Products are exported to more than 50 countries and regions.

In 2023,  Successfully passed the A-level of the integration of information and industrialization management system, participated in the revision of "D.L/T849.4-2004 "General Technical Conditions for Special Test Instruments for Power Equipment Part 4 Ultra-low Frequency High Voltage Generator"" and successfully passed it.

In2024,  Won the title of Gazelle Enterprise

In 2025  Continue to work hard to write a new chapter

Certification