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This section provides an overview for withstanding voltage testers as well as their applications and principles. Also, please take a look at the list of 24 withstanding voltage tester manufacturers and their company rankings. Here are the top-ranked withstanding voltage tester companies as of December, 2024: 1.Automated Software Technology LLC, 2.Wuhan Goldhome Hipot Electrical Co.,Ltd., 3.Shenzhen Meiruike Electronic Technology Co., Ltd..
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A withstanding voltage tester is a testing device used to evaluate the voltage endurance of electrical equipment and electronic components. It ensures that products operate safely within their rated voltage and design specifications. Materials with defects or impurities may lose dielectric strength, leading to the risk of dielectric breakdown when high voltage is applied, potentially causing electric shock or fire. The Electrical Appliance and Material Safety Law sets voltage withstand standards for devices to prevent such disasters. These tests, based on various standards and criteria, assess compliance with the law's standards.
Withstanding voltage testers are employed in a range of industrial fields, primarily for testing electrical products. They are crucial in evaluating the insulation performance of household appliances, like televisions and refrigerators, against overvoltages and voltage fluctuations. In power conversion equipment such as inverters, these tests check insulation capability against high voltages and waveform changes.
In the realm of electronic components like capacitors, withstanding voltage testers are used to assess insulation structures by applying voltages exceeding their rated capacity. For transistors and diodes, the tests verify proper insulation under operational conditions. Additionally, these testers play a vital role in ensuring the safety of medical devices and protecting patients and medical personnel from electric shock risks.
Withstanding voltage testers generate and apply high voltages to test objects. Typically employing transformers or power amplifier circuits, they boost low voltages to high levels for application to the test objects. Equipped with measurement circuits and sensors, these testers evaluate the insulation performance by measuring parameters like leakage current and insulation resistance. This confirms the object's insulation capability and withstand voltage limits. Additionally, these testers often have functions to control the voltage signal's waveform and characteristics, enabling precise test conditions like sustained voltage application and test duration settings.
Selecting the right withstanding voltage tester involves considering factors such as voltage range, testing standards, and measurement capabilities, all within a budget. Key considerations include:
The tester's voltage range should align with the test object's maximum voltage requirements, including the accuracy of voltage control and the applicable voltage type (AC/DC). The equipment's specifications must be checked for the needed accuracy.
Test standards and regulatory compliance, ideally to international standards like IEC or industry-specific ones, are crucial. The required voltage level, test duration, and conditions may vary by standard.
Ensuring the tester has essential measurement functions, such as leakage current and insulation resistance measurements, is important. Protective features like overcurrent shutdown should also be verified.
*Including some distributors, etc.
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Ross Engineering Corporation, founded in 1964 and based in Campbell, California, is a manufacturer of a wide range of high-voltage electronic and electro-mechanical devices and is ISO 9001 certified. It stocks over 25 lines of high voltage devices such as voltmeters, relays, and probes used in several fields such as industrial plants, communication transmitters, and power supplies with ranges from 0.01mV to 1,200,000 V. The company is ISO/IEC 17025:2017 certified and has a calibration lab for testing and calibrating dividers, relays, and probes up to 450kV.
Cirris, Inc. is a manufacturer of commercial as well as industrial cable and harness test products established in 1984 and based in Salt Lake City, Utah. The company's product portfolio includes various cable testers from battery-operated units for field service use, to heavy-duty models for testing complex harnesses. It also offers adapters for different terminals and connectors, and software for organizing test data for reports or assessments. The company was acquired by the Swiss Komax Group in 2020 and currently operates as its subsidiary. It also offers product customization, calibration, personnel training, and tester upgrade services.
Saelig Company Inc, established in 1988 by AlanLowne is a New York, USA-based distributor of electronics including electronic control and instrumentation equipment & components used in industrial users, military, educational institutions, and hospitals sectors. The company's product portfolio is composed of industrial PCs, ultrasonics, data loggers, converters, and cables such as RF cables, USB active & passive cables, ethernet cables, and cable adapters. They also offer various test equipment such as current clamps, analyzers, calibrators, analyzers, and oscilloscopes including benchtop, handheld, mixed-signal, portable tablet, and PC-based oscillators.
HV Hipot Tester Electric Co., Ltd., founded in 2003 and based in China, is a manufacturer of electrical safety testing equipment, especially high voltage testing equipment. The company is a national high-tech organisation that has a 2000-square-meter 8S contemporary management and manufacturing facility and around 1500 square metres of high-tech, intelligent office space. Products from the company are utilised in the diagnostic assessment, proof testing, and preventive maintenance testing of electrical cables. It evaluates various electrical equipment, including GIS systems, transformers, circuit breakers, surge arresters, and generators. The company holds ISO and CE certification.
KharkovEnergoPribor Ltd. (KEP Power Testing), established in 2004 and headquartered in Kharkiv, Sums'ka Oblast', Ukraine, is a manufacturer of electrical test equipment and a provider of power testing services. The company's products include Cable test and fault location systems, High-voltage testers, and Primary current injection testers. It also produces Insulating oil testersResonant test systems and the KEP Suite, to get the most out of its products. Its notable clients include the National Power Company (NPC) Ukrenergo, the Federal Grid Company of Russia, and the railways of CIS (Commonwealth of Independent States).
Zeal Manufacturing & Calibration Services Pvt. Ltd., founded in 2017 with headquarters in India, is a manufacturer of electronics testing, calibration, and measuring instruments. The company's product line includes AC and DC high-voltage breakdown testers, insulation resistance testers, ground continuity testers, DC-regulated power supplies, and variable frequency sources. Zeal Manufacturing & Calibration Services serves calibration laboratories, testing laboratories in government, and commercial and industrial multinational organizations. The company's products are used in infrastructure transformers, postal services, control panel manufacturing, testing laboratories, and educational institutions. Zeal Manufacturing & Calibration Services Pvt. Ltd. also offers custom manufacturing and onsite calibration services.
Huazheng Electric Manufacturing (Baoding) Co.,Ltd (HEMB) is a Chinese manufacturer of electrical equipment and testing instruments established in 2008. Based in Baoding, Hebei, the company produces a wide range of power equipment including high voltage and transformer oil testers, cable locators, pulse capacitors, and energy meter calibrators. It also offers control equipment for grid management and various animal repellent devices. HEMB primarily supplies the Chinese State Grid, power engineering companies, and transformer manufacturers.
GW Instek or Good Will Instruments is a Taiwanese instrument maker founded in 1975. GW Instek has over 300 product lines, which include Oscilloscopes, Spectrum Analyzers, Signal Sources, Basic Tests and Measurement Instruments, Safety Monitoring Systems, and more. Leading manufacturers choose them as their test and measurement provider. GW Instek has become the leading brand in the electronic test and measurement industry. They help electronic industries reduce testing costs and increase competitiveness. GW Instek has subsidiaries in five countries and is sold to more than 80. Their mission is to reduce total costs and create customers value from cost savings.
Nissin Electric Co., Ltd., established in Kyoto, Japan, in 1917, is a Supplier of electrical energy by substation equipment, and grid connection technology. The company provides factories and office buildings to realize the optimal operation of energy and technical support. They also provide industrial infrastructure, with an emphasis on power system and energy equipment. Their product range includes gas insulated switchgear, storage battery system, vehicle recognition system, high voltage test product and multiple environmental sensors.
Ainuo Instrument Co., Ltd. is a manufacturer of electrical measuring instruments and power supplies, founded in 1993 and located in Qingdao, China. The company's product range includes AC/DC power supplies, motor test scheme instruments, power analyzers, and AC/DC electronic loads. These products are applied in new energy, electric vehicles, and household appliances. The company serves several Industries, including aerospace, ship and railway, and electric power Industries and it is a CE certified company.
Hopetech Electronic Technology Co., Ltd. (Hopetech) is a Chinese manufacturer of laboratory equipment and analytical instrumentation established in 2009 in Changzhou, Jiangsu. The company primarily produces liquid and gas chromatographs, spectrophotometers, rheometers, and refractometers. These supply China’s educational and research institutions, as well as clients in energy production and environmental protection. Hopetech conducts independent quality management and R&D operations from its main 2,000sqm Changzhou facility, and maintains a global sales network across six continents.
Hubbell, incorporated in the late 1800's, and based in Shelton, Connecticut, USA, is a manufacturer of electrical and electronic products. Its comprehensive product range covers standard and specialized wiring devices, rough-in electrical products, connectors, grounding solutions, lighting fixtures, and various electrical equipment for use in industrial, commercial, and institutional facilities. These products find application in diverse settings, from controlled data centers to power grids. The company's products address business challenges, improve energy efficiency, enhance safety, withstand harsh environments, and enable easier management of wiring and grounding systems around buildings.
LISUN INSTRUMENTS LIMITED established in Jiading District, Shanghai in 2003 is a manufacturer of lighting and electrical test instruments such as integrating spheres, surge generators and led testers. Their product portfolio includes ESD Simulator, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, and Environmental Chamber. The company has service offices in China, Russia, India, and Korea and in 2012, they opened a showroom and accreditation lab in Shanghai. Their products have ISO9001:2015 certification and CIE, IEC international standards.
Shenzhen Meiruike Electronic Technology Co. Ltd. is a manufacturer and supplier of electronic measurement instruments established in 2006 and located in Shenzhen, Guangdong, China. The company’s products include DC low resistance testers for verifying resistance ranges in electrical circuits, high voltage digital meters for measuring electrical parameters of assemblies, and intelligent power measurement instruments for constant analysis or monitoring of power usage. It also offers electronic load testers for measuring and troubleshooting power supply performance. The company’s products are used by client manufacturers of consumer electronics, home appliances, and industrial machinery.
Hioki E.E. Corporation was founded in 1935 and headquartered in Ueda, Nagano. Hioki provides testing & analysis, manufacturing & inspection, and equipment maintenance to industries including mobility, battery, motor, energy, electronic components, and infrastructure. Hioki’s has 10 primary product categories which are: recorders and data loggers including oscilloscopes, LCR/Resistance Meters, safety testing including signal generators and calibrators, power meters including power quality analyzers, probes & sensors, optical & PV maintenance & telecommunication, environmental measuring, DMM & testers & field measuring, IoT & new solutions & meter relay, and bare board & package testing.
OMICRON Electronics was founded in 1984 and is located in Vorarlberg, Austria is a supplier of testing, diagnostics, and monitoring systems for the electrical power industry. The company provides measurement equipment, circuit breaker & switchgear, power & instrument transformer, and protection relays, along with rotating machines, energy meters, and transducers for various applications in the Power industry. They also offer cyber security, data management, power utility communication, and troubleshooting facilities for aerospace, railways, electronics, and infrastructure manufacturing sectors. The company provides financial support to the "Crossing Borders" association which helps rising funds for improving educational opportunities for children.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | LISUN INSTRUMENTS LIMITED |
27.8%
|
| 2 | Shenzhen Meiruike Electronic Technology Co., Ltd. |
11.1%
|
| 3 | Saelig Company Inc |
11.1%
|
| 4 | Automated Software Technology LLC |
5.6%
|
| 5 | Wuhan Goldhome Hipot Electrical Co.,Ltd. |
5.6%
|
| 6 | Ainuo Instrument Co., Ltd. |
5.6%
|
| 7 | NC network co.,Ltd. |
5.6%
|
| 8 | Changzhou Jinko Electronic Technology Co., Ltd. |
5.6%
|
| 9 | NANJING CHANGSHENG INSTRUMENT CO., LTD |
5.6%
|
| 10 | Multitech Teknoloji |
5.6%
|
Derivation Method
The ranking is calculated based on the click share within the withstanding voltage tester page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
7 | 36.8% |
|
United States of America
|
4 | 21.1% |
|
Japan
|
4 | 21.1% |
|
Ukraine
|
1 | 5.3% |
|
India
|
1 | 5.3% |
|
Taiwan
|
1 | 5.3% |
Germany
|
1 | 5.3% |
