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Huzhou Aidi Electric Co., Ltd. is a high-tech private enterprise specialized in the R&D, production and after-sales service of power system testing instruments, intelligent and automatic testing equipment. With years of in-depth industry experience and abundant on-site technical accumulation, the company has independently developed a full range of high-performance power testing instruments trusted extensively by power system users. The company’s product portfolio covers more than 60 models across ten categories, including core mainstream products such as automatic transformer comprehensive testers, high-power DC test power supply, and high-current test devices. Focusing on relay protection testing solutions, Aidi Electric provides high quality relay testers, reliable relay testersand best relay testers for industrial clients, delivering affordable relay protection testing equipment with stable performance and precise test data. Aidi Electric boasts a professional technical team, with over 30% of staff holding senior and intermediate professional titles. All products pass strict calibration and testing by professional institutions. As a designated supplier for power system test equipment, the company has fully obtained ISO 9001:2015 quality management system certification, ensuring standardized production, stable product consistency and reliable quality control. Adhering to the quality policy of “striving for brand excellence and establishing integrity through superior service”, and the team management philosophy of unity, motivation and common prosperity, the company strictly controls every production process. Committed to building a first-class Chinese manufacturer of intelligent and automatic power test and monitoring equipment, Huzhou Aidi Electric continues to provide cost-effective relay protection tester series products and professional one-stop technical services for global power industry customers.

Huzhou Aidi Electric Co., Ltd. is a high-tech private enterprise dedicated to the research, development, production and after-sales service of intelligent and automatic testing instruments and equipment for power systems. With years of on-site technical experience, the company has independently developed a full series of high-performance power testing instruments, covering more than 60 product categories. Its core products include comprehensive automatic transformer testers, high-power DC test power supply and high-current testing devices, which are widely recognized and trusted by power industry users. Focusing on power system detection solutions, Aidi Electric specializes in manufacturing professional relay protection tester series. The company provides high quality relay tester and best relay testers with stable performance and precise testing data. All products are strictly calibrated by professional testing institutions, featuring high stability and strong compatibility. As a reliable supplier of power test equipment, the company offers affordable relay protection testing solutions and highly reliable relay testers for various power inspection and maintenance projects. The company owns a professional technical team, with over 30% of engineers holding intermediate and senior professional titles. It has passed ISO 9001:2015 quality management system certification, ensuring standardized production, stable product quality and standardized quality control procedures throughout every process. Adhering to the quality policy of pursuing excellence and integrity-based service, Huzhou Aidi Electric continues to optimize product performance and after-sales service. Committed to building a first-class manufacturer of intelligent power testing and monitoring equipment in China, the company strives to provide cost-effective, stable and professional testing equipment for global power industries.

Huzhou, Zhejiang – Huzhou Aidi Electric Co., Ltd., a leading developer and manufacturer of professional power testing instruments, has launched the brand-new AD292ZA Full-Automatic Mutual Inductor Comprehensive Tester, bringing a high-precision integrated testing solution for full-range mutual inductor detection in power system scenarios. This new equipment complements the company’s complete lineup of power testing hardware, forming a matched testing ecosystem with Relay Protection Tester to deliver one-stop inspection services for power transformers, mutual inductors and secondary protection circuits in power plants, substations and electrical maintenance stations. The AD292ZA integrates multiple core testing functions including ratio error measurement, polarity identification, insulation resistance testing and excitation curve analysis, supporting fully automatic workflows from parameter configuration to data output. It cuts down manual operation errors and largely lifts field testing efficiency. Built with advanced digital measurement technology and high-precision sensors, the tester maintains steady performance and precise test readings to satisfy rigid inspection standards for all types of mutual inductors. Its intuitive operation panel and intelligent data processing system lower the operation threshold, while powerful anti-interference capability guarantees consistent running under complicated on-site electrical conditions. Compact and lightweight, the portable design fits both laboratory calibration and outdoor field inspection perfectly, acting as a stable testing device for daily substation inspection work. As matching auxiliary testing equipment for the premium High Quality Relay Tester, the AD292ZA optimizes the overall detection workflow of secondary power equipment. It serves as a vital supporting unit for a mature Reliable Relay Tester, eliminating data deviation during joint testing of transformers and protection devices. Fully compliant with global power industry standards, this all-in-one mutual inductor tester satisfies the rigorous matching requirements of the industry’s top Best Relay Testers. Meanwhile, the cost-effective product layout realizes accessible and complete Affordable Relay Protection and transformer testing solutions for power enterprises of all scales. Huzhou Aidi Electric Co., Ltd. adheres to continuous technological iteration and strict quality control for all testing instruments. The newly launched AD292ZA enriches the enterprise’s product matrix and delivers accurate, credible test data to safeguard the secure and stable operation of global power grids. The company will keep advancing innovative power testing equipment to provide comprehensive, efficient and cost-saving inspection tools for power maintenance and engineering teams worldwide.

Huzhou, Zhejiang – Huzhou Aidi Electric Co., Ltd., a professional manufacturer dedicated to the research, development and production of power testing equipment, has officially released the Relay and Transformer Test Solution equipped with the AD292Z Analyzer. This all-in-one professional testing system is tailored for comprehensive inspection of power equipment, covering full-scope parameter testing for power relays and transformers, and it has become a powerful upgrade for mainstream power detection workflows across power grids, industrial power systems and daily electrical maintenance projects. Powered by advanced digital analysis technology, the AD292Z Analyzer delivers highly accurate measurements of mutual inductance, winding parameters and circuit performance. It enables stable and efficient implementation of Affordable Relay Protection verification, striking an ideal balance between excellent testing performance and cost advantages for various power operation scenarios. This integrated solution effectively addresses multiple technical challenges existing in traditional power testing work. It achieves synchronous calibration for transformers and relay equipment when paired with a High Quality Relay Tester, which greatly guarantees the matching precision of power secondary circuits. As a core auxiliary system for professional power detection, it remarkably enhances the overall testing capacity of a standard Relay Protection Tester whether used in complex field environments or laboratory testing sites. Adopting industrial-grade hardware and optimized operational logic, the AD292Z Analyzer maintains highly repeatable test results under diverse working conditions. It acts as an essential supporting module for a Reliable Relay Tester, effectively reducing measurement errors caused by environmental changes and equipment differences. Fully compliant with strict industrial testing specifications, this integrated solution perfectly meets the application criteria of the industry’s top Best Relay Testers. Featuring simple operation steps, extensive testing coverage and outstanding universal compatibility, the new test solution significantly boosts overall power testing efficiency. Huzhou Aidi Electric Co., Ltd. will continue to focus on technological innovation and product optimization, providing reliable technical support for the safe, stable and standardized operation of global power relay and transformer systems, and striving to deliver more high-performance power testing solutions for partners worldwide.    

Huzhou, Zhejiang – Huzhou Aidi Electric Co., Ltd., a reputable specialist in the development and production of professional power system testing instruments, officially launches its newly upgraded AD106 Arrester On-line Monitor Comprehensive Tester to enrich its lineup of auxiliary testing accessories for mainstream power protection equipment. The newly released tester is engineered for full-range parameter detection, calibration and routine maintenance of arrester on-line monitors, designed to pair seamlessly with standard Relay Protection Tester to deliver complete technical support for arrester safety management within power grids, and it has gained wide application across power generation plants, transformer substations and professional electrical inspection institutes. Developed as matching auxiliary hardware for the premium-grade High Quality Relay Tester, the AD106 tester boasts outstanding measurement precision and stable operational performance. It can precisely capture all core operating parameters of arrester monitoring devices to secure steady functioning of overall arrester protection frameworks. Equipped with multi-layer built-in circuit protection modules, this product effectively prevents component breakdown triggered by unexpected voltage swings, qualifying it as an indispensable accessory for a trusted Reliable Relay Tester and enabling uninterrupted long-duration operation amid complicated and volatile field working conditions. Boasting streamlined structure and compact portable layout for effortless on-site manipulation, the AD106 stands out among compatible supporting devices for the market’s leading Best Relay Testers. Beyond reliable technical performance, the product is built as a cost-effective option under the framework of Affordable Relay Protection, balancing superior testing capacity and reasonable procurement cost. It perfectly fulfills diverse field calibration demands for arrester on-line monitors and builds solid technical safeguards for secure and steady running of global power distribution systems. Backed by the company’s decades of experience in power testing equipment manufacturing and strict in-house quality control standards, Huzhou Aidi Electric Co., Ltd. will continue optimizing the AD106 series through iterative technical upgrades. The enterprise aims to expand global market cooperation and supply cost-efficient, high-performance testing solutions for power industry clients worldwide, further consolidating its footprint in the international electrical testing equipment sector.      

Huzhou, China – May 30, 2026 – Huzhou Aidi Electric Co., Ltd., a high-tech enterprise specializing in power system testing instruments, officially announced the release of its latest flagship product, the AD292Z-B Automatic Instrument Transformer Multi Tester. Designed as a professional high-voltage transformer tester integrated with the advanced AD292Z digital mutual inductance analysis module, this new device delivers precise and reliable parameter detection for high-voltage transformers, power system calibration, and electrical equipment performance verification, bringing a cost-effective solution for Affordable Relay Protection in modern power grid infrastructure. Developed to meet the rigorous demands of harsh substation and industrial testing environments, the AD292Z-B features strong anti-interference capability, a wide testing range, and intuitive real-time data output. It perfectly complements the functional system of a High Quality Relay Tester, effectively addressing core challenges in transformer-relay matching and secondary circuit parameter calibration. As an upgraded auxiliary device for mainstream testing equipment, it significantly optimizes the overall working performance of a standard Relay Protection Tester during daily power maintenance and emergency troubleshooting tasks. Adopting industrial-grade hardware components and optimized digital algorithms, the AD292Z-B ensures consistent, repeatable, and accurate test results even in long-term field operation. It serves as an essential supporting tool for a Reliable Relay Tester, minimizing data deviation caused by environmental interference, temperature fluctuations, and equipment aging. Fully compliant with international and industry testing standards, this versatile high-voltage tester meets the strict calibration requirements of the Best Relay Testers available on the global market. Lightweight, compact, and easy to operate, the AD292Z-B greatly improves on-site testing efficiency while reducing manual operation errors. It provides robust technical guarantees for the safe and stable operation of high-voltage power transformation and relay protection systems, making it an ideal choice for power utilities, engineering companies, and industrial enterprises worldwide. About Huzhou Aidi Electric Co., Ltd. Founded in 1998, Huzhou Aidi Electric Co., Ltd. is a leading manufacturer of power system testing and monitoring equipment in China. With over 20 years of technical experience and continuous innovation, the company offers a comprehensive range of products including relay protection testers, instrument transformer testers, high-voltage generators, and other specialized electrical testing devices. Committed to “quality-oriented, service to society,” Huzhou Aidi Electric Co., Ltd. strives to deliver high-quality, reliable, and cost-effective solutions for the global power industry.