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Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
                A Comissão considerou que os preços de venda dos produtos incluídos no presente inquérito não eram representativos do mercado da União. Estabelecida em 1 de fevereiro de 2013, e com sede em Xi'an, China, a XZH TEST opera uma instalação dedicada de pesquisa e desenvolvimento e fabricação de quatro andares que abrange 3.000 metros quadrados.Aproveitar parcerias com instituições de prestígio, como a Universidade Xidian, Universidade Xi'an Jiaotong, e vários institutos de pesquisa de alta tensão, a empresa fornece equipamentos e instrumentos avançados de teste de alta tensão.Incluindo os sectores do sistema de energia (geração, transformação, distribuição e consumo), organizações de pesquisa e fabricantes de equipamentos de energia.Produção, vendas, formação e serviço. Nós sinceramente mantemos o princípio de "Qualidade em primeiro lugar, clientes supremos, compromisso de honra, confiança digna"A empresa mantém o compromisso com a I&D sobre equipamentos de detecção de energia elétrica e automação de energia elétrica, desde a sua fundação, a empresa continua a viver à altura da crença de: "Criar uma marca de alta qualidade, criando uma imagem de empresa de primeira classe"Também, fazemos o "desenvolvimento constante, a melhor qualidade"como o conceito central da empresa.Nosso objetivo é fornecer aos nossos clientes equipamentos de teste e medição confiáveis que sejam mais seguros e fáceis de usar, tornando a medição mais fácil! A nossa equipa Possuímos uma equipe profissional altamente experiente, e nossos processos de design de produtos, P&D, fabricação e verificação seguem estritamente os padrões ISO 9001 e CE,garantir uma qualidade consistentemente superiorDedicado à investigação e desenvolvimento de instrumentos de medição eléctricos, o nosso portfólio de produtos abrange uma ampla gama de equipamentos de teste eléctricos,incluindo sistemas de localização de falhas de cabos subterrâneos, unidades de ensaio de transformadores de potência, testadores de resistência de tensão (Hipot) AC/DC e testadores de resistência de isolamento. 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. Scenário de fábricae A nossa moderna fábrica dispõe de oficinas limpas e bem iluminadas com uma gestão rigorosa dos 5S.ambiente de trabalho seguro, garantindo uma produção de alta precisão para todos os equipamentos de ensaio de potência. Certificação A nossa empresa possui qualificações completas, incluindo certificado de empresa de alta tecnologia, certificação do sistema de gestão da qualidade ISO,dezenas de patentes independentes e licenças de acesso ao setor de energia profissionalTodos os nossos equipamentos de teste de potência passam por uma inspecção de desempenho padrão rigorosa, certificados de conformidade completa suportam licitação doméstica e exportação para o exterior,Certificação confiável garante produtos estáveis e de alta qualidade para clientes globais de engenharia de energia.  
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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 Conclui Detecção de Falha em Cabo de 10kV, Localizando Falha a 345,72 m em um Cabo 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;}} A XZH TEST concluiu um projecto de detecção de falhas de cabos de alimentação de 10 kV para um cliente industrial,que combina métodos de pulso de baixa tensão e flashover de alta tensão para localizar uma falha de isolamento principal num cabo 1038A falha foi identificada a 345,72 metros do final do ensaio, e as conclusões apontam para um provável problema numa articulação intermédia. Detalhes do projecto ProjetoDetecção de falhas de cabos de 10 kV para um cliente industrial Pessoal de ensaioYe Peng, Ge Haojie Data do ensaio11 de Setembro de 2026 Modelo de cabo8.7/10 kV Informações sobre o sítioA partir da subestação até à área da central, através de condutas e trincheiras; isolamento de fase A medido 3,2 MΩ Instrumentos utilizadosTransformador de ensaio de caixa de funcionamento 5/50, condensador 40/6, localizador de pontos 503E+, instrumento de identificação de cabo, unidade principal 501A e conjunto de combustão Natureza da falhaTeste de Megger: Fase A 3,2 MΩ a 2489 V; as outras fases foram normais Comprimento do caboComprimento total 1038,88 m Localização difícil A distância aproximada de falha foi medida utilizando o método de pulso de baixa tensão e o método de flashover de alta tensão.e o ponto de falha foi encontrado para ser 3450,72 m da extremidade do ensaio. Análise da forma de onda As formas de onda capturadas foram analisadas da seguinte forma: Usando a forma de onda de pulso de baixa tensão, o comprimento total do cabo foi medido em 1038,88 m. Usando o método flashover de alta tensão, quando a tensão foi aumentada para 22 kV, a falha quebrou e uma forma de onda de falha foi capturada. Localização exata Pesquisa da rota do cabo:O cabo é colocado em trincheiras e a rota era praticamente limpa, por isso não foi feito rastreamento de rota. Localização da falha do isolamento principal:diretamente acima da rota do cabo, dentro do intervalo aproximado dado pelo flashover de alta tensão, o localizador 503E+ foi usado para pesquisar. Com a tensão elevada para cerca de 22 kV, a busca prosseguiu ao longo da rota do cabo, e o som da descarga do ponto de falha foi ouvido a cerca de 345,72 m da extremidade do ensaio,confirmação da localização da falha. Resumo do ensaio Para os cabos que ainda podem funcionar normalmente, mas apresentam uma resistência de isolamento relativamente baixa, a fase de baixa resistência deve ser investigada para evitar interrupções inesperadas;na maioria dos casos este tipo de problema é causado por uma das articulações intermediárias. Para falhas que não podem ser decompostas em um curto período de tempo, é necessário queimar para reduzir ainda mais a resistência à falha e estabelecer um caminho estável de falha, para que a falha possa ser localizada. Precisa de uma falha de cabo localizada de forma rápida e precisa? Contacte a XZH TEST para equipamento de detecção de falhas de cabo e suporte técnico no local.
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Edifício B8-01, Fase I, Cidade Industrial Ronghao, n.o 2098, Weiyang 9th Road, distrito de Gaoling, Xi'an, China
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