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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
Xi'an Xu&Hui Tecnología electromecánica Co., Ltd. Fundada el 1 de febrero de 2013 y con sede en Xi'an, China, XZH TEST opera una instalación dedicada a I+D y fabricación de cuatro pisos que abarca 3000 metros cuadrados. Aprovechando asociaciones con instituciones prestigiosas, como la Universidad Xidian, la Universidad Xi'an Jiaotong y varios institutos de investigación de alto voltaje, la empresa proporciona instrumentación y equipos de prueba avanzados de alto voltaje. Atiende a una amplia gama de clientes, incluidos sectores de sistemas eléctricos (generación, transformación, distribución y consumo), organizaciones de investigación y fabricantes de equipos eléctricos. XZH TEST es una empresa de alta tecnología a nivel nacional que integra investigación y desarrollo, producción, ventas, capacitación y servicio. Sinceramente mantenemos el principio de "Calidad primero, clientes supremos, compromiso de honor, digno de confianza.".Mantiene el compromiso de I+D en equipos de detección de energía eléctrica y automatización de energía eléctrica, desde su fundación, la empresa sigue cumpliendo con la creencia de: "Cree una marca de alta calidad y transmita una imagen empresarial de primera clase.". Además, hacemos el "Desarrollo constante, la mejor calidad."como el concepto central de la empresa.Nuestro objetivo es proporcionar a nuestros clientes equipos de prueba y medición confiables, más seguros y fáciles de usar. ¡Hacemos que la medición sea más fácil! Nuestro equipo Contamos con un equipo profesional altamente experimentado y nuestros procesos de diseño de productos, I+D, fabricación y verificación cumplen estrictamente con las normas ISO 9001 y CE, lo que garantiza una calidad superior constante. Dedicada a la investigación y el desarrollo de instrumentos de medición eléctrica, nuestra cartera de productos abarca una amplia gama de equipos de prueba eléctrica, incluidos sistemas de localización de fallas en cables subterráneos, unidades de prueba de transformadores de potencia, probadores de tensión soportada CA/CC (Hipot) y probadores de resistencia de aislamiento. Aprovechando nuestra amplia experiencia en tecnología de medición y la innovación continua, complementadas con un servicio integral y soporte técnico, estamos comprometidos a crear el máximo valor para nuestros clientes y brindar las soluciones de medición eléctrica más confiables. Escena de fábricami Nuestra moderna planta de fabricación cuenta con talleres ordenados y bien iluminados con una estricta gestión de las 5S. Las zonas de producción bien organizadas y los sistemas completos de ventilación y purificación crean un entorno de trabajo limpio y seguro, lo que garantiza una producción de alta precisión para todos los equipos de prueba de energía. Proceso de dar un título Nuestra empresa cuenta con calificaciones autorizadas completas que incluyen certificado empresarial de alta tecnología, certificación del sistema de gestión de calidad ISO, docenas de patentes independientes y licencias de acceso profesional a la industria energética. Todos nuestros equipos de prueba de energía pasan una estricta inspección de desempeño estándar, los certificados de cumplimiento total respaldan las licitaciones nacionales y las exportaciones al extranjero, la certificación confiable garantiza productos estables y de alta calidad para clientes globales de ingeniería energética.
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Second National High-Voltage Testing Technology Training and Assessment Held in Xi'an with Xuzhihui Support 2026-10-29 Second National High-Voltage Testing Technology Training and Assessment Held in Xi'an with Xuzhihui Support XI'AN, China — From June 28 to July 5, 2026, the Second National High-Voltage Testing Technology Training and Professional Competence Assessment was successfully held in Xi'an. High-voltage testing specialists from across China's power industry gathered for intensive theoretical training and hands-on assessment, with Xi'an Xuzhihui Electromechanical Technology Co., Ltd. ("Xuzhihui") providing full support throughout the event. Theory Training: Building Solid Foundations Under Expert Guidance From June 28 to July 3, the "2026 Second National High-Voltage Testing Technology Training Program," hosted by the Beijing Electric Power Training Center, opened in Xi'an. The curriculum covered a wide range of specialized topics, including: application of high-voltage testing technology in UHV (ultra-high-voltage) projects; application of series resonant devices in power testing; common fault analysis and testing techniques for instrument transformers; verification techniques for current and voltage transformers; testing methods for on-load tap changers and zinc oxide surge arresters; grounding technology for electrical equipment and partial discharge detection. Drawing on years of technical expertise and on-site experience in high-voltage testing, Mr. Zhang Zhencun, Chairman of Xuzhihui, was invited to serve as a guest instructor and delivered a special session on "Power Cable Testing and Detection." Classroom interaction was lively and the learning atmosphere was enthusiastic. Practical Assessment: Putting Skills to the Test From July 3 to 5, the professional competence assessment for high-voltage testing personnel was organized by the National High-Voltage Metrology Station and hosted by Xuzhihui. The hands-on assessment took place at Xuzhihui's factory, where the company had fully prepared the venue and calibrated testing equipment in advance. On the assessment day, the practice area presented neatly arranged equipment ready for the candidates. Conducted in accordance with specification T/CEC 315—2020, the assessment was divided into Class I and Class II levels, comprehensively evaluating candidates' hands-on ability and on-site adaptability. DatesJune 28 – July 5, 2026 (training June 28 – July 3; assessment July 3 – 5) LocationXi'an, China — assessment hosted at the Xuzhihui factory OrganizersBeijing Electric Power Training Center (training); National High-Voltage Metrology Station (assessment) Assessment levelsClass I and Class II, per specification T/CEC 315—2020 Mandatory subjectsInsulation performance tests, impedance measurement tests, metrological performance tests CertificatePower Industry Professional Competence Certificate (China Electricity Council), valid three years Throughout the assessment, candidates completed each practical subject in a standardized and skilled manner, while invigilators graded strictly. Many candidates noted that the theoretical knowledge gained during training was effectively tested and applied in practice, leaving a deeper impression. As the final candidate completed the operation, the assessment concluded successfully. Candidates who passed all required subjects will receive the "Power Industry Professional Competence Certificate" issued by the China Electricity Council. Valid for three years, the certificate can be queried and downloaded on the Power Industry Talent Development Service Platform. About Xuzhihui Founded in 2013, Xuzhihui is a national high-tech enterprise integrating research, production, sales and service. It primarily serves power generation, transmission, substation, supply and power-consuming departments, as well as power equipment manufacturers. Through this training and assessment event, we witnessed power professionals from across the country operating equipment proficiently, which also inspires us to continuously improve our products and services. Going forward, Xuzhihui will continue to deepen its work in the power testing and detection field and serve industry development with a pragmatic approach.
XZH TEST Launches Fully Domestic Export-Edition Power Testing Vehicle for Belt and Road Substations 2026-10-24 XZH TEST Launches Fully Domestic Export-Edition Power Testing Vehicle Chinese Intelligent Manufacturing Goes Global to Support High-Quality Power Development Along the Belt and Road XZH TEST Electromechanical Technology Co., Ltd. has launched its Export-Edition Power Testing Vehicle, a fully domestically developed, self-contained mobile test platform designed to address the growing demand for grid operation and maintenance, fault location, and equipment condition assessment across the substations and power networks of Belt and Road countries. As global energy infrastructure investment continues to accelerate, grid construction in many countries along the Belt and Road is advancing rapidly, and the demand for grid operation and maintenance, fault diagnosis, and equipment condition assessment is rising every day. Traditional on-site power testing still faces persistent challenges: a proliferation of scattered and independent test instruments, heavy and laborious equipment handling, complex on-site wiring, and the frequent lack of a reliable power supply in remote field environments. These factors consume considerable manpower and resources, constrain grid operation and maintenance efficiency, and make it difficult to fully safeguard power supply reliability. Building on its independent R&D strengths in domestic power testing equipment, XZH TEST has drawn on years of technical accumulation and engineering experience to develop a fully domestic, export-oriented power testing vehicle. Through scientific spatial layout and a highly modular, integrated design, the vehicle consolidates a complete suite of self-developed professional power testing instruments onto a single mobile platform, creating a mobile “power comprehensive test laboratory” that can be deployed directly to the site. With the strength of Chinese intelligent manufacturing, XZH TEST delivers an integrated testing and maintenance solution for overseas power grids, demonstrating the technical capability and product reliability of domestic power testing equipment. Fig. 1  The XZH TEST Export-Edition Power Testing Vehicle on the road Full-Stack Domestic System Integration Delivers One-Stop Substation Testing Coverage Every core testing instrument inside the vehicle is independently developed and manufactured by XZH TEST, eliminating dependence on external equipment. The integrated platform delivers efficient and accurate on-site testing, commissioning, and comprehensive condition assessment of key primary and secondary substation equipment, covering the full range of testing requirements for power transformers, instrument transformers, high-voltage switches, lightning arresters, power cables, relay protection, and grounding grids. Power Transformer Testing System: integrates the XHTX1318AJ transformer characteristic tester, XHZ1320 DC resistance tester, XHBB128B ratio and group tester, XHZK1620 low-voltage short-circuit impedance tester, XHBX1502 transformer winding deformation tester, XHYS101A transformer oil dielectric loss tester, XHYY102 insulating oil withstand voltage tester, and XHXC105A demagnetizer. Instrument Transformer Testing System: integrates the XHTX206 instrument transformer characteristic tester. High-Voltage Switch Testing System: integrates the XHJJ302AC circuit breaker mechanical characteristic tester, XHHL3200 contact resistance tester, and XHJL309 sulfur hexafluoride (SF6) comprehensive tester. Lightning Arrester Testing System: integrates the XHJS401A arrester monitor calibration tester and XHDD405 live zinc-oxide (ZnO) arrester tester. Power Cable Detection and Testing System: integrates the XHGG502A cable fault tester, XHDD503E cable fault locator, XHGX507C cable comprehensive tester, XHHV5354TSC high-voltage pulse generator, XHHD520 outer-sheath fault comprehensive assessment instrument, XHSC60Q intelligent burn-down bridge, XHDL51X cable quality analyzer, HDPJ80 very-low-frequency (VLF) dielectric loss tester, XHOW56035 cable oscillating-wave partial discharge detector, XHZK550 cable broadband impedance analyzer, XHZS506YS cable piercing device, XHSB505B live cable identifier, and XHZL509 cable length meter. Relay Protection Testing System: integrates the XHJB666 relay protection tester. Substation Grounding Grid Testing System: integrates the XHEP701A ground grid resistance tester and XHDJ706 grounding resistance and soil resistivity tester. Comprehensive Power Testing System: integrates the XHJS1000C dielectric loss tester, XHYB10/100 AC/DC withstand voltage device, XHJF870D live partial discharge tester, XHCF220/50 battery charge/discharge device, XHMR5000C insulation resistance tester, XHXW905S three-phase volt-ammeter, and XHBN900 power quality analyzer. Fig. 2  Rear equipment bay with integrated testing instruments Fig. 3  Main control console and onboard test instruments Fig. 4  Vehicle interior equipment racks and cabinets Vehicle Integration and Power Supply Adapted to Demanding Overseas Field Conditions To cope with the demanding conditions of remote overseas sites — rough roads, high temperatures, dust and sand, and the frequent absence of local grid power — the vehicle has been specially adapted for export with seismic reinforcement, dust-proof and heat-insulation measures, and a dedicated power supply system. A domestically produced 6 kW variable-frequency auxiliary generator supports the continuous, stable operation of the entire suite of precision test instruments even in field environments with no external power, so the team can begin work immediately on arrival without building a separate power supply. Instruments inside the vehicle are mounted with shock-proof, reinforced installation to withstand the vibration of long-distance transport. A complete package of safety protection, grounding protection, and ventilation and heat-dissipation systems enables the vehicle to adapt to a wide range of overseas working conditions, including high temperatures and sandstorms, fully meeting the practical requirements of substation inspection, preventive testing, and emergency fault repair in the field. Fig. 5  Vehicle integration and auxiliary power supply system Competitive Advantages Over Imported Equipment Chinese power testing equipment is accelerating its expansion into the global market. Committed to independent innovation and rigorous R&D, XZH TEST delivers products of reliable quality and breaks through the barriers long held by overseas equipment manufacturers. Compared with imported equipment of equivalent testing accuracy, XZH TEST's solutions offer flexible and customizable configurations, controllable delivery schedules, convenient post-sale maintenance, and efficient spare-part supply. In this way, Chinese power testing technology serves the world's energy construction with cost-effective, full-process localized technical service. Contact For detailed technical parameters and performance specifications, or to customize a dedicated power testing vehicle configuration tailored to your country's working conditions, please contact us at: 400-029-0829. About XZH TEST XZH TEST Electromechanical Technology Co., Ltd. is dedicated to the high-voltage power testing and cable fault detection field. Drawing on years of technical accumulation and engineering practice, the company develops and manufactures professional power testing equipment for customers worldwide, supporting safe and reliable power network operation through innovative and reliable testing solutions. Fig. 6  XZH TEST manufacturing facility
XZH TEST completa la detección de fallas de cable de 10kV, localizando fallas a 345.72 m en un cable de 1038.88 m 2026-09-20 .newsx{font-family:Verdana,Helvetica,"Times New Roman",Arial,sans-serif;max-width:100%;margin:0 auto;color:#2b333b;line-height:2;font-size:15px;text-align:justify;} .newsx *{box-sizing:border-box;} .newsx p{font-size:15px;line-height:2;text-align:justify;margin:0 0 16px 0;color:#333b43;} .newsx ul,.newsx ol{list-style:none !important;list-style-type:none !important;padding-left:0 !important;margin:0 0 16px 0 !important;} .newsx li{list-style:none !important;list-style-type:none !important;} .newsx li::marker{content:none !important;} .newsx-sec{font-size:19px;font-weight:bold;color:#1f2d3d;line-height:1.6;margin:28px 0 14px 0;padding:0 0 8px 12px;border-left:4px solid #2c5d8f;display:block;} .newsx-lead{font-size:15px;line-height:2;text-align:justify;color:#333b43;} .newsx-tw{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0;} .newsx table{border-collapse:collapse !important;border-spacing:0 !important;width:100%;font-size:15px;margin:0;} .newsx th,.newsx td{border:1px solid #d6e2f0 !important;padding:9px 12px !important;text-align:left !important;vertical-align:top !important;font-size:15px !important;line-height:2 !important;} .newsx th{font-weight:bold !important;background:#eaf1f9 !important;color:#1f2d3d !important;} .newsx-list{margin:0 0 16px 0;} .newsx-li{position:relative;padding-left:20px;margin:10px 0;font-size:15px;line-height:2;text-align:justify;color:#333b43;} .newsx-li::before{content:"\2022" !important;position:absolute !important;left:2px !important;top:0 !important;color:#2c5d8f;font-size:16px;line-height:2;} .newsx-cta{margin:24px 0 4px 0;padding:18px 20px;background:#1f2d3d;border-radius:4px;} .newsx-ctat{font-size:16px;font-weight:bold;color:#ffffff;line-height:2;display:block;} .newsx-cta p{color:#dbe6f2;margin:0;font-size:14px;} @media (min-width:768px){.newsx{padding:0 6px;}} XZH TEST completó un proyecto de detección de fallas de cables de alimentación de 10 kV para un cliente industrial,combinando los métodos de pulso de bajo voltaje y de flashover de alto voltaje para localizar una falla de aislamiento principal en un cable 1038La falla fue localizada a 345,72 metros del extremo de prueba, y los hallazgos apuntan a un probable problema en una unión intermedia. Detalles del proyecto ProyectoDetección de fallos en cables de 10 kV para un cliente industrial Personal de ensayoYe Peng, Ge Haojie. ¿Qué quieres decir? Fecha del ensayo11 de septiembre de 2026 Modelo de cable8.7/10 kV Información sobre el sitioDesde la subestación hasta el área de la planta, colocada a través de conductos y zanjas; aislamiento de fase A medido en 3,2 MΩ Instrumentos utilizadosTransformador de ensayo de caja de funcionamiento 5/50, condensador 40/6, localizador de punto preciso 503E+, instrumento de identificación de cable, unidad principal 501A y conjunto de quemado Naturaleza de la fallaPrueba de Megger: fase A 3,2 MΩ a 2489 V; las otras fases fueron normales Duración del cableDuración total 1038,88 m Ubicación difícil La distancia aproximada de falla se midió utilizando el método de pulso de bajo voltaje y el método de flashover de alto voltaje.y el punto de falla se encontró a ser 345.72 m del extremo de prueba. Análisis de forma de onda Las formas de onda capturadas se analizaron de la siguiente manera: Utilizando la forma de onda de pulso de bajo voltaje, la longitud total del cable se midió en 1038,88 m. Utilizando el método flashover de alto voltaje, cuando el voltaje se elevó a 22 kV, la falla se rompió y se capturó una forma de onda de falla. Ubicación exacta Encuesta de la ruta del cable:El cable está colocado en trincheras y la ruta estaba básicamente libre, por lo que no se realizó ningún seguimiento de ruta. Ubicación de la falla del aislamiento principal:directamente por encima de la ruta del cable, dentro del rango aproximado dado por el flashover de alto voltaje, se utilizó el localizador 503E + para buscar. Con el voltaje elevado a unos 22 kV, la búsqueda se realizó a lo largo de la ruta del cable, y el sonido de descarga del punto de falla se escuchó a unos 345,72 m del extremo de prueba,confirmación de la ubicación de la falla. Resumen del ensayo En el caso de los cables que puedan seguir funcionando normalmente pero que muestren una resistencia de aislamiento relativamente baja, debe investigarse la fase de baja resistencia para evitar interrupciones inesperadas.en la mayoría de los casos este tipo de problema es causado por una de las articulaciones intermedias. Para las fallas que no pueden descomponerse en poco tiempo, se necesita un burn-through para reducir aún más la resistencia a la falla y establecer una trayectoria de falla estable, para que la falla pueda localizarse. ¿Necesita una falla de cable localizada rápida y con precisión? Contacte a XZH TEST para obtener equipos de detección de fallos de cables y soporte técnico in situ.
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Edificio B8-01, Fase I, Ciudad Industrial Ronghao, No. 2098, Weiyang 9th Road, distrito de Gaoling, Xi'an, China
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