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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
Xi'an Xu&Hui Electromechanical Technology Co., Ltd. Established on February 1, 2013, and headquartered in Xi'an, China, XZH TEST operates a dedicated four-story R&D and manufacturing facility spanning 3,000 square meters. Leveraging partnerships with prestigious institutions—such as Xidian University, Xi'an Jiaotong University, and various high-voltage research institutes—the company provides advanced high-voltage testing equipment and instrumentation. It serves a wide range of clients, including power system sectors (generation, transformation, distribution, and consumption), research organizations, and manufacturers of power equipment. XZH TEST is a national-level high-tech enterprise integrating research and development, production, sales, training, and service. 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! Our Team We possess a highly experienced professional team, and our product design, R&D, manufacturing, and verification processes strictly adhere to ISO 9001 and CE standards, ensuring consistently superior quality. Dedicated to the research and development of electrical measurement instruments, our product portfolio encompasses a wide range of electrical testing equipment, including underground cable fault location systems, power transformer testing units, AC/DC withstand voltage (Hipot) testers, and insulation resistance testers. Leveraging our extensive expertise in measurement technology and continuous innovation—complemented by comprehensive service and technical support—we are committed to creating maximum value for our customers and delivering the most reliable electrical measurement solutions. Factory scene Our modern manufacturing plant features tidy, well-lit workshops with strict 5S management. Well-organized production zones, complete ventilation and purification systems create a clean, safe working environment, ensuring high-precision production for all power testing equipment. Certification Our enterprise holds complete authoritative qualifications including high-tech enterprise certificate, ISO quality management system certification, dozens of independent patents and professional power industry access licenses. All our power testing equipment passes strict standard performance inspection, full compliance certificates support domestic bidding and overseas export, reliable certification guarantees stable and high-quality products for global power engineering customers.
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CICA Inaugural Competition: Xi'an Xu&hui Equipment Named Official Designated Competition Facility 2026-07-06 The inaugural CICA Member States Workers' Skills Competition was held in Guangzhou from June 30 to July 4, 2026. This marked the first international skills competition for workers organized within the framework of the Conference on Interaction and Confidence Building Measures in Asia (CICA). The event was hosted by the All-China Federation of Trade Unions and organized by the China Workers' Centre for International Exchange, the Guangzhou Municipal People's Government, and the Guangdong Provincial Federation of Trade Unions. Competition as a Bridge: Artisans from 23 Countries Gather in Guangzhou The competition, themed "Mutual Trust, Mutual Learning, and Crafting the Future Together," featured three events—masonry, UAV assembly and maintenance, and intelligent inspection of high-voltage cables—spanning the fields of traditional infrastructure, emerging technologies, and energy security. Approximately 80 representatives from 23 CICA member and observer states gathered in Guangzhou. Chinese, English, and Russian served as the working languages, facilitating skill exchanges among contestants from various countries. Alongside the competition, technical exchanges and skill demonstrations were held to showcase China’s vocational skill standards, vocational education models, and equipment manufacturing technologies to CICA nations. Multiple pieces of equipment from Xi'an Xu&hui debuted at the competition and were designated as official competition facilities and equipment. Cable length measurement and route tracing constitute one of the core modules in the high-voltage cable intelligent operation and maintenance competition. The XHGX507C pipeline locator and XHGG502A cable fault tester, manufactured by Xi'an Xu&hui Electromechanical Technology Co., Ltd., were designated by the organizers as the official equipment for this module. The stable performance of both devices during the competition earned unanimous acclaim from contestants and the judging panel alike. Mr. Zhang Zhencun, Chairman of Xi'an Xu&hui Electromechanical Technology Co., Ltd., was invited to serve as a judge for the intelligent operation and inspection project for high-voltage cables, drawing upon his profound professional expertise in the field of cable testing. In addition to supplying equipment for the competition, the organizers provided Xi'an Xu&hui with a dedicated space to showcase its products. The company displayed a range of core products on-site, including the XHGG502A cable fault tester, XHDD503E+ cable fault pinpointing device, XHGX507C pipeline locator, XHHV515-8L high-voltage pulse generator, XHSC-60Q burn-through unit, XHZS506YS cable spiking tool, XHHV535-4TSB integrated cable fault testing system, and cable outer sheath diagnostic tester. At the booth, these devices attracted numerous contestants, team leaders, and guests who stopped to make inquiries. Technical personnel from various CICA (Conference on Interaction and Confidence-Building Measures in Asia) member countries showed keen interest in the equipment's level of intelligence, ease of operation, and detection accuracy.Xi'an Xu&hui Electromechanical Technology Co., Ltd. Highlights from the competition During the competition, contestants from various countries engaged in fierce rivalry within the "Intelligent Operation and Inspection of High-Voltage Cables" category. In the cable length measurement and route tracing module, participants demonstrated exceptional skill and precision while operating the XHGX507C pipeline locator and the XHGG502A cable fault tester.This event marks significant international recognition of the "Xu&hui Quality" standard. Participating in the CICA (Conference on Interaction and Confidence-Building Measures in Asia) Employee Skills Competition served not only as a showcase of the product capabilities of Xi'an Xu&hui but also as a vital initiative in the company's deep engagement with international skills exchange and its contribution to the "Belt and Road" development.Looking ahead, Xi'an Xu&hui remains committed to the spirit of craftsmanship and will continue to deepen its expertise in the fields of cable testing and intelligent operation and inspection. Through superior product quality and continuous technological innovation, the company aims to contribute Chinese strength to global energy security and ensure that "Smart Manufacturing from China" shines brightly on the world stage.
Focusing on Cable Fault Detection, Safeguarding Grid Safety — A Look at Xi'an Xu&Hui Electromechanical Technology Co., 2026-07-02 As midsummer arrives and temperatures steadily climb, cooling equipment—such as air conditioners and fans—is running at full capacity, driving electricity consumption to its annual peak. With grid loads repeatedly hitting record highs, power cables are operating under heavy loads for extended periods; this leads to increased heat generation and accelerated insulation aging, thereby raising the risk of failure. Every unexpected outage can result in power loss for residential buildings and the halting of factory production lines. Ensuring a stable power supply is vital to public well-being, and rapid power restoration is a race against time. Precisely and quickly locating cable faults is a critical link in this summer’s mission to safeguard the power grid. In the historic city of Xi'an, one company—Xi'an Xu&Hui Electromechanical Technology Co., Ltd.—has long specialized in the field of power testing. Dedicated to providing the power industry with advanced high-voltage testing equipment and instruments, the company safeguards the safe operation of the power grid through its technology and products. 01 Based in the ancient capital, deeply rooted in the field of power testing. Established in 2013 and headquartered in the Ronghao Industrial Park, Gaoling District, Xi'an, Xi'an Xu&Hui Electromechanical Technology Co., Ltd. is a national high-tech enterprise integrating scientific research, production, sales, training, and service.  The company primarily serves sectors involved in power generation, transformation, distribution, and consumption, as well as enterprises related to power equipment; it operates a dedicated four-story facility spanning 3,000 square meters for R&D and production and maintains a professional technical team.  Xi'an Xu&Hui remains committed to its corporate mission of "safeguarding the reliable operation of power systems" and upholds the corporate spirit of "unity, entrepreneurship, pragmatism, and innovation." 02 Product Portfolio: A one-stop solution ranging from detection to positioning. Cable Fault Detection Equipment / Cable Fault Tester This instrument is designed to locate faults in power cables of various materials, including low-resistance, short-circuit, and open-circuit faults, as well as high-resistance leakage and high-resistance flashover faults. It utilizes embedded industrial computer technology and the "multiple-pulse method," while also incorporating high-voltage impulse flashover and low-voltage pulse testing techniques, enabling the detection of both high- and low-resistance faults in cables rated at 35 kV and below. Cable Fault PinpointerUtilizing the acoustic-magnetic synchronization principle, this device enables precise pinpointing and location verification of fault sites in complex field environments, significantly enhancing operational efficiency. The cable tracer, comprising a signal generator and a receiver, identifies and accurately locates cable paths within the burial area. The product features high output power, robust resistance to vibration and interference, and reliable performance.High-Voltage Pulse GeneratorThis unit provides the high-voltage impulse signal source for cable fault detection. It works in conjunction with the main testing unit to perform impulse flashover testing for high-resistance faults and serves as a critical component of the cable fault ranging system.Cable Fault Testing Vehicle (Vehicle-Mounted Cable Fault Location System)An integrated system comprising nine major components, including a high-voltage pulse generator, cable fault ranging unit, cable fault pinpointer, cable tracer, cable identifier, insulation resistance tester, and 0.1Hz VLF withstand voltage test system. It is suitable for power cables of various cross-sections and insulation materials, capable of addressing low-resistance, short-circuit, open-circuit, high-resistance leakage, and high-resistance flashover faults.Cable Fault Simulation and Calibration SystemDesigned to simulate various faults in single-core power cables rated at 10kV and above, this system works with ranging instruments and high-voltage signal generators to simulate and demonstrate detailed fault-ranging processes in the field. It is also used for training personnel in the diagnosis, location, and ranging of cable sheath faults. 03 Qualifications and Honors: A Testament to Strength After years of development, Xu&Hui has secured numerous significant qualifications and honors, including: National High-Tech Enterprise. "Grade A" Tax Credit Rating Construction Enterprise Qualification Certificate (Grade II General Contractor for Electric Power Engineering) Grade III Qualification for Installation, Grade II for Repair, and Grade II for Testing of Power Facilities, among others. The company holds over 30 patented technologies, such as a new type of capacitor for cable fault location, a secondary flashover detection device for power cable faults, and a DC attenuation variable-frequency degaussing device. In 2026, the company obtained a patent for a "comprehensive low-voltage cable tracing device" and applied for a patent for a "cable fault precise localization method and system based on waveform analysis." This technology enables path planning, anti-interference localization, fault diagnosis, and depth measurement, significantly enhancing the efficiency and accuracy of cable fault localization. 04 Looking to the Future Xi'an Xu&Hui holds a clear and ambitious vision for its future development. The company will continue to leverage its technical strengths in power testing and achieve breakthroughs in domestic substitution. Simultaneously, it will deepen industry-academia-research collaborations with universities, utilizing advanced technologies to bring its products to the global market and contribute to the high-quality development of the power testing industry.From the historic city of Xi'an to over 50 countries and regions worldwide, Xi'an Xu&Hui safeguards the safe operation of power grids through solid technical expertise and high-quality products and services. Moving forward, the company will remain committed to its core philosophy—"serving the power industry through technology and achieving corporate success through progress"—while continuously pursuing technological innovation and product optimization to establish itself as a renowned enterprise in the power testing equipment manufacturing sector.
What equipment is actually required for a complete cable fault detection system? 2026-06-27 .gtr-container-xzh789 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 16px; box-sizing: border-box; overflow-x: hidden; } .gtr-container-xzh789 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; } .gtr-container-xzh789 a { color: #01EDC9; text-decoration: none; } .gtr-container-xzh789 a:hover { text-decoration: underline; } .gtr-container-xzh789 img { max-width: 100%; height: auto; display: block; margin: 1em 0; } .gtr-container-xzh789 .gtr-section-title { font-size: 18px; font-weight: bold; color: #01EDC9; margin-top: 2em; margin-bottom: 1em; text-align: left; } .gtr-container-xzh789 .gtr-component-item { margin-bottom: 2em; padding-bottom: 1.5em; border-bottom: 1px solid #eee; } .gtr-container-xzh789 .gtr-component-item:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; } .gtr-container-xzh789 .gtr-component-name { font-size: 18px; font-weight: bold; color: #01EDC9; margin-bottom: 0.5em; text-align: left; } .gtr-container-xzh789 ul, .gtr-container-xzh789 ol { margin: 1em 0; padding-left: 20px; list-style: none !important; } .gtr-container-xzh789 ol { counter-reset: list-item; } .gtr-container-xzh789 li { font-size: 14px; margin-bottom: 0.5em; position: relative; padding-left: 25px; text-align: left; list-style: none !important; } .gtr-container-xzh789 ul li::before { content: "•" !important; position: absolute !important; left: 0 !important; color: #01EDC9; font-size: 1.2em; line-height: 1; } .gtr-container-xzh789 ol li::before { counter-increment: none; content: counter(list-item) "." !important; position: absolute !important; left: 0 !important; color: #01EDC9; font-weight: bold; width: 20px; text-align: right; } @media (min-width: 768px) { .gtr-container-xzh789 { max-width: 960px; margin: 0 auto; padding: 24px; } .gtr-container-xzh789 p { margin-bottom: 1.2em; } .gtr-container-xzh789 .gtr-section-title { margin-top: 2.5em; margin-bottom: 1.2em; } .gtr-container-xzh789 .gtr-component-item { margin-bottom: 2.5em; padding-bottom: 2em; } .gtr-container-xzh789 .gtr-component-name { margin-bottom: 0.8em; } .gtr-container-xzh789 li { margin-bottom: 0.8em; } } A few days ago, a client asked me right off the bat: "How much does that pinpointing device of yours cost? Is it accurate at locating faults?"I replied, "Are you planning to buy *only* a pinpointing device?"The client was taken aback: "Yes, why? What else would I need?"In fact, that question itself reveals a common misconception: cable fault detection is never a job where "one single instrument does it all."Locating a cable fault is like solving a mystery; you can never uncover the truth by relying on just one clue.It requires a coordinated effort involving a full suite of equipment—including rough ranging, path tracing, breakdown generation, and pinpointing—to accurately lock onto the fault location.Today, using products from Xi'an Xuzhihui as examples, I’ll walk you through exactly what constitutes a complete cable fault detection system and the specific role each piece of equipment plays. The four core components—none can be dispensed with. XHGG502A Cable Fault Locator It features a 10.1-inch full-color touchscreen, a maximum sampling frequency of 400 MHz, and a ranging capability exceeding 120 km; it automatically analyzes waveforms to display the fault distance. It should be noted that "coarse ranging" cannot be performed directly; a high-voltage pulse generator must be used to apply high voltage and break down the fault point so that the main unit can capture a valid reflected waveform and determine the distance. This process first establishes the approximate location of the fault, narrowing the range down to within a few tens of meters—or even just a few meters. The first step of rough measurement tells you "roughly where it is." XHLJ504L  Cable Route Tracer Detects the alignment, path, and burial depth of underground cables. It utilizes the principle of electromagnetic induction and features high power output; it is not limited by cable length, can trace paths even in open-circuit conditions, and offers a detection depth exceeding 10 meters. Can't find the blueprints? First locate the path, then determine the points. XHHV535-4Z High Voltage Surge Generator It utilizes impulse discharge to break down the fault point. This process spans both the rough ranging and precise pinpointing stages: during rough ranging, it works with a cable fault tester to break down the fault and capture waveforms; during pinpointing, it works with a pinpointing device to induce repeated discharges at the fault, generating acoustic and magnetic signals. The unit integrates a DC high-voltage source, energy-storage capacitors, and a discharge spark gap into a single device weighing no more than 35 kg; it also supports DC withstand voltage testing, offering dual functionality. Use it for rough fault location via breakdown, and for pinpointing via acoustic signals—a single device handles the entire process. XHDD503C Cable Fault Pinpointer Utilizing the principle of acoustic-magnetic synchronization, the device simultaneously captures the acoustic and electromagnetic waves generated by the breakdown discharge at the fault site, calculating the precise location based on the time difference between the two signals. This process relies on a high-voltage pulse generator; since the pinpointing unit itself does not cause the fault to "emit sound," the generator must continuously apply high voltage to induce repeated discharges, allowing the unit to detect the acoustic and magnetic signals and achieve precise localization. With a positioning accuracy of ≤0.1 meters, the system employs a fully digital pinpointing probe combined with fifth-order superposition filtering technology to clearly capture discharge sounds, even in noisy environments. Refining the measurement from a rough estimate of tens of meters to a precision of 0.1 meters. Collaborative closed-loop Cable fault tester → Rough location (estimating the distance in meters) Cable path tracer → Path tracing (determining the route/direction) High-voltage pulse generator → Breakdown (inducing a discharge at the fault point) Cable fault pinpointing device → Pinpointing (locating the fault with 0.1-meter precision) All four instruments must work together to fully locate the fault point; the process chain breaks if any single unit is missing. In addition to the "Big Four," you might also need these pieces of equipment. Cable Identifier — Accurately locates the target cable among multiple cables. Cable Piercing Tool — Confirms whether a cable is live before cutting or maintenance, ensuring safety. Outer Sheath Fault Detector & Locator — Specifically designed to detect faults in cable outer sheaths. Burn-through Unit — Converts high-resistance faults into low-resistance ones to facilitate subsequent testing. Xu Zhi Hui can supply a complete range of equipment required for cable fault detection, including the items listed above.
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Building B8-01, Phase I, Ronghao Industrial City, No. 2098, Weiyang 9th Road, Gaoling District, Xi'an, China
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