{"id":452,"date":"2026-09-15T02:45:05","date_gmt":"2026-09-14T18:45:05","guid":{"rendered":"http:\/\/www.greenovater.com\/blog\/?p=452"},"modified":"2026-09-15T02:45:05","modified_gmt":"2026-09-14T18:45:05","slug":"top-10-partial-discharge-tester-suppliers-in-the-world-2026-4133-17a2e9","status":"publish","type":"post","link":"http:\/\/www.greenovater.com\/blog\/2026\/09\/15\/top-10-partial-discharge-tester-suppliers-in-the-world-2026-4133-17a2e9\/","title":{"rendered":"Top 10 Partial Discharge Tester Suppliers in the world 2026"},"content":{"rendered":"<h2>Introduction to Partial Discharge Tester<\/h2>\n<p>Partial discharge (PD) is a localized electrical discharge that occurs within a dielectric material or at the interface between a conductor and a dielectric. It can cause progressive deterioration of the insulation system, leading to potential failures in electrical equipment. A partial discharge tester is an essential tool used for detecting, measuring, and analyzing partial discharges in high &#8211; voltage electrical equipment such as transformers, cables, generators, and switchgear. By accurately identifying partial discharges, these testers help maintenance professionals assess the insulation condition, predict potential failures, and schedule timely maintenance to prevent costly equipment breakdowns. <a href=\"https:\/\/www.transformer-test.com\/partial-discharge-tester\/\">Partial Discharge Tester<\/a><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.transformer-test.com\/uploads\/202647488\/small\/hipot-circuit-breaker-testere73b3303-a85e-446c-93fd-478d4f89893c.jpg\"><\/p>\n<h2>Top 10 Suppliers<\/h2>\n<h3>1. <a href=\"https:\/\/www.transformer-test.com\/\">Refine On (Hebei) Electric Power Technology Co., Ltd.<\/a><\/h3>\n<p>Refine On (Hebei) Electric Power Technology Co., Ltd. is a leading provider of electrical testing equipment in the global market. The company specializes in the research, development, production, and sales of a wide range of electrical testing products, with partial discharge testers being one of its flagship offerings.<\/p>\n<ul>\n<li><strong>About the Company<\/strong>: The company has a team of highly &#8211; skilled engineers and technical experts who are dedicated to continuous innovation. They have advanced production facilities and strict quality control systems to ensure that each product meets international standards. With years of experience in the electrical testing field, Refine On has established a good reputation among customers around the world.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>High &#8211; precision measurement: Their partial discharge testers can accurately detect and measure partial discharge signals with extremely low noise levels, providing reliable data for insulation assessment.<\/li>\n<li>Multi &#8211; function design: These testers are equipped with functions such as phase &#8211; resolved partial discharge (PRPD) analysis, pulse shape analysis, and historical data comparison, which help users comprehensively understand the insulation condition of electrical equipment.<\/li>\n<li>User &#8211; friendly interface: They feature intuitive touch &#8211; screen interfaces that make it easy for operators to operate and interpret test results.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Cost &#8211; effective solutions: The company offers high &#8211; quality partial discharge testers at competitive prices, providing cost &#8211; effective testing solutions for customers.<\/li>\n<li>Excellent after &#8211; sales service: Refine On provides comprehensive after &#8211; sales support, including installation guidance, training, and maintenance services, ensuring smooth operation of the equipment for customers.<\/li>\n<li>Customization ability: They can customize partial discharge testers according to the specific needs of customers, meeting different testing requirements in various application scenarios.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.transformer-test.com\/\">Website<\/a><\/p>\n<\/li>\n<\/ul>\n<h3>2. Siemens AG<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Siemens is a global powerhouse in the fields of electrification, automation, and digitalization. With a history dating back over 170 years, the company has a broad range of products and services for various industries. In the electrical testing domain, Siemens has a long &#8211; standing reputation for reliability and innovation. It invests heavily in research and development to ensure its products are at the cutting &#8211; edge of technology.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Integration with smart power grids: Siemens&#8217; partial discharge testers can be easily integrated with smart power grid systems, enabling real &#8211; time monitoring and remote control.<\/li>\n<li>Advanced signal processing algorithms: These testers use state &#8211; of &#8211; the &#8211; art signal processing algorithms to accurately distinguish partial discharge signals from background noise, improving the detection accuracy.<\/li>\n<li>Compatibility with various electrical equipment: They are designed to be compatible with different types of high &#8211; voltage electrical equipment, from small &#8211; scale distribution transformers to large &#8211; scale power generators.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Global brand recognition: As one of the world&#8217;s most well &#8211; known companies, Siemens&#8217; products are trusted by customers worldwide.<\/li>\n<li>Extensive technical support network: The company has a vast network of technical support teams around the globe, providing prompt and efficient assistance to customers.<\/li>\n<li>Long &#8211; term R &#038; D experience: With decades of research and development in the electrical field, Siemens can continuously improve its partial discharge tester technology.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>3. Hitachi Energy Ltd.<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Hitachi Energy is a leading global technology company that provides solutions for the energy value chain. It focuses on power transmission, distribution, and grid automation. The company&#8217;s products are known for their high &#8211; performance and long &#8211; service life. In the area of partial discharge testing, Hitachi Energy has a deep understanding of the requirements of the power industry.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Robust design: Their testers are built to withstand harsh environmental conditions, making them suitable for use in various outdoor and industrial settings.<\/li>\n<li>High &#8211; speed data acquisition: These testers are capable of acquiring partial discharge data at high speeds, enabling real &#8211; time analysis and rapid decision &#8211; making.<\/li>\n<li>Enhanced security features: They incorporate advanced security mechanisms to protect test data and prevent unauthorized access.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Deep industry knowledge: Hitachi Energy has in &#8211; depth knowledge of the power industry, which allows it to design partial discharge testers that precisely meet the industry&#8217;s needs.<\/li>\n<li>Strong R &#038; D capabilities: The company continuously invests in research and development to introduce new and improved partial discharge testing technologies.<\/li>\n<li>Comprehensive product portfolio: In addition to partial discharge testers, Hitachi Energy offers a wide range of related products and services, providing one &#8211; stop solutions for customers.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>4. Megger Group Limited<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Megger is a well &#8211; established company with a long history in the electrical testing and measurement field. It is recognized for its high &#8211; quality and reliable testing equipment. The company has a global presence, serving customers in over 100 countries. Its products are used in various industries, including power generation, transmission, and distribution.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Portable and easy to use: Megger&#8217;s partial discharge testers are designed to be portable, allowing for on &#8211; site testing. They have simple operation procedures, making them accessible to a wide range of technicians.<\/li>\n<li>High stability: These testers offer high &#8211; level stability in measurement results, ensuring the accuracy and reproducibility of partial discharge detection.<\/li>\n<li>Wide measurement range: They can measure partial discharges over a wide range of amplitudes, suitable for different types of electrical equipment.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Reputation for quality: Megger has built a strong reputation for producing high &#8211; quality electrical testing equipment over the years.<\/li>\n<li>Global distribution network: The company has an extensive global distribution network, ensuring quick delivery of products to customers.<\/li>\n<li>Training and education programs: Megger provides training and education programs for its customers, helping them better understand and use its partial discharge testers.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>5. Doble Engineering Company<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Doble Engineering is a leading provider of diagnostic testing solutions for the electric power industry. It has a long &#8211; standing tradition of innovation and excellence in electrical testing technology. The company focuses on developing advanced testing methods and equipment to help utilities and industrial customers ensure the reliable operation of their electrical assets.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Advanced diagnostic algorithms: Doble&#8217;s partial discharge testers use advanced diagnostic algorithms to provide in &#8211; depth analysis of partial discharge data, such as identifying the type and location of partial discharges.<\/li>\n<li>Integration with asset management systems: These testers can be integrated with asset management systems, enabling seamless data transfer and comprehensive asset management.<\/li>\n<li>High &#8211; resolution measurement: They offer high &#8211; resolution measurement capabilities, allowing for the detection of even the smallest partial discharge signals.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Specialized in power industry: Doble has a deep understanding of the specific requirements of the power industry, and its products are highly optimized for power system applications.<\/li>\n<li>Long &#8211; term customer relationships: The company has established long &#8211; term relationships with many major power utilities and industrial customers, based on its reliable products and excellent service.<\/li>\n<li>Continuous innovation: Doble is committed to continuous innovation, regularly introducing new features and improvements to its partial discharge testers.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>6. OMICRON electronics GmbH<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: OMICRON is a global leader in the development, production, and distribution of test and diagnostic equipment for electrical power systems. The company is known for its innovative and user &#8211; friendly products. It has a strong focus on research and development, aiming to provide the latest technology solutions to its customers.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Modular design: OMICRON&#8217;s partial discharge testers feature a modular design, which allows for easy customization and expansion according to customer needs.<\/li>\n<li>Advanced software platform: These testers come with a powerful software platform that provides comprehensive data analysis and reporting functions.<\/li>\n<li>High &#8211; voltage insulation: They are equipped with high &#8211; voltage insulation technology, ensuring the safety of operators during testing.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Innovation &#8211; driven: OMICRON is highly innovative, constantly introducing new technologies and features to its products.<\/li>\n<li>High &#8211; quality software: The software provided by OMICRON is known for its high quality and ease of use, facilitating data analysis and interpretation for users.<\/li>\n<li>International presence: The company has a strong international presence, with offices and distributors around the world, providing global support to its customers.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>7. Hipotronics, Inc.<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Hipotronics is a leading manufacturer of high &#8211; voltage test equipment, including partial discharge testers. The company has been in business for many years and has a solid reputation for producing reliable and durable testing equipment. It serves a wide range of industries, including power generation, aerospace, and electronics.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>High &#8211; voltage testing capabilities: Hipotronics&#8217; partial discharge testers can perform testing at high voltages, which is suitable for high &#8211; voltage electrical equipment.<\/li>\n<li>Rugged construction: These testers are built with a rugged construction, ensuring their durability in tough industrial environments.<\/li>\n<li>Comprehensive safety features: They are equipped with comprehensive safety features to protect operators and equipment during testing.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Specialized in high &#8211; voltage testing: Hipotronics has extensive experience in high &#8211; voltage testing, and its partial discharge testers are well &#8211; suited for high &#8211; voltage applications.<\/li>\n<li>Custom &#8211; made solutions: The company can provide custom &#8211; made partial discharge testing solutions according to the specific requirements of customers.<\/li>\n<li>Good after &#8211; sales service: Hipotronics offers excellent after &#8211; sales service, including equipment repair and calibration.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>8. Haefely Test AG<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Haefely Test is a well &#8211; respected company in the field of high &#8211; voltage testing and diagnostic solutions. It has a long &#8211; standing history of providing high &#8211; quality products and services to the electrical industry. The company&#8217;s products are used for testing and maintaining a wide range of electrical equipment.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Accurate calibration: Haefely Test&#8217;s partial discharge testers are accurately calibrated, ensuring the accuracy of measurement results.<\/li>\n<li>Long &#8211; distance communication capabilities: These testers can support long &#8211; distance communication, enabling remote monitoring and control.<\/li>\n<li>Compatibility with international standards: They are designed to comply with international standards for partial discharge testing, ensuring their global application.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Legacy of quality: The company has a long &#8211; standing legacy of producing high &#8211; quality high &#8211; voltage testing equipment, especially partial discharge testers.<\/li>\n<li>Global support network: Haefely Test has a global support network, providing timely assistance to customers around the world.<\/li>\n<li>In &#8211; house R &#038; D: It has in &#8211; house research and development capabilities, which allows it to continuously improve its product technology.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>9. Siemens ALT-MANN Messtechnik GmbH<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: Siemens ALT &#8211; MANN Messtechnik is a specialized company in the field of electrical measurement technology. It focuses on developing high &#8211; precision measurement equipment, including partial discharge testers. The company combines the expertise of Siemens with its own innovative technology to provide high &#8211; performance products.<\/li>\n<li>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>High &#8211; precision sensors: Their partial discharge testers are equipped with high &#8211; precision sensors, which can detect partial discharge signals with high sensitivity.<\/li>\n<li>Real &#8211; time data analysis: These testers can perform real &#8211; time data analysis, providing immediate feedback on the insulation condition of electrical equipment.<\/li>\n<li>Compact design: They have a compact design, which is suitable for use in limited &#8211; space environments.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Technological combination: The combination of Siemens&#8217; technology and its own innovation gives the company an edge in developing advanced partial discharge testers.<\/li>\n<li>High &#8211; precision measurement: The high &#8211; precision sensors ensure accurate measurement results, which are crucial for insulation assessment.<\/li>\n<li>Focus on innovation: The company is committed to continuous innovation, constantly improving the performance of its partial discharge testers.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>10. PDS Technologies, Inc.<\/h3>\n<ul>\n<li><strong>About the Company<\/strong>: PDS Technologies is a leading provider of partial discharge testing and monitoring solutions. The company specializes in developing advanced partial discharge detection technologies and offers a range of products and services for the electrical industry. It has a team of experts in the field of partial discharge testing, dedicated to providing the best solutions to customers.<\/li>\n<li>\n<p><img decoding=\"async\" src=\"https:\/\/www.transformer-test.com\/uploads\/47488\/small\/oil-acidity-tester9a236.jpg\"><\/p>\n<p><strong>Features of Partial Discharge Testers<\/strong>:<\/p>\n<ul>\n<li>Wireless monitoring capabilities: PDS Technologies&#8217; partial discharge testers can support wireless monitoring, allowing for easy installation and flexible testing in different locations.<\/li>\n<li>Advanced pattern recognition: These testers use advanced pattern recognition technology to distinguish different types of partial discharges, providing more detailed information for insulation assessment.<\/li>\n<li>Cloud &#8211; based data storage: They offer cloud &#8211; based data storage, enabling easy access to historical test data and remote data sharing.<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.transformer-test.com\/partial-discharge-tester\/\">Partial Discharge Tester<\/a> <strong>Advantages<\/strong>:<\/p>\n<ul>\n<li>Specialized in partial discharge: The company focuses solely on partial discharge testing and monitoring, which gives it in &#8211; depth knowledge and expertise in this area.<\/li>\n<li>Wireless and cloud &#8211; enabled technology: The wireless and cloud &#8211; based features of its products provide convenient and efficient testing solutions for customers.<\/li>\n<li>Responsive customer service: PDS Technologies provides responsive customer service, quickly addressing customer needs and concerns.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Introduction to Partial Discharge Tester Partial discharge (PD) is a localized electrical discharge that occurs within &hellip; <a title=\"Top 10 Partial Discharge Tester Suppliers in the world 2026\" class=\"hm-read-more\" href=\"http:\/\/www.greenovater.com\/blog\/2026\/09\/15\/top-10-partial-discharge-tester-suppliers-in-the-world-2026-4133-17a2e9\/\"><span class=\"screen-reader-text\">Top 10 Partial Discharge Tester Suppliers in the world 2026<\/span>Read more<\/a><\/p>\n","protected":false},"author":254,"featured_media":452,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[415],"class_list":["post-452","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-partial-discharge-tester-4154-184a63"],"_links":{"self":[{"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/posts\/452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/users\/254"}],"replies":[{"embeddable":true,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/comments?post=452"}],"version-history":[{"count":0,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/posts\/452\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/posts\/452"}],"wp:attachment":[{"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/media?parent=452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/categories?post=452"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.greenovater.com\/blog\/wp-json\/wp\/v2\/tags?post=452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}