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This section provides an overview for high voltage generators as well as their applications and principles. Also, please take a look at the list of 12 high voltage generator manufacturers and their company rankings. Here are the top-ranked high voltage generator companies as of January, 2025: 1.Nidec Motors, 2.HVP High Voltage Products GmbH., 3.Polar Power Inc.
Table of Contents
A high voltage generator is a device that converts low voltage AC current received from the power company into high voltage AC or DC current.
The electricity itself transmitted from the power company is high voltage, such as 6.6kV or 33kV, but is converted to low voltage, such as 200V or 400V, for safety reasons at the end of actual use of the electricity.
When using equipment that requires high voltage for operation or conducting tests using high voltage, it is necessary to convert from such low voltage to high voltage.
There are several types of high voltage generators for different applications, each with different voltage characteristics and ranges.
The lineup varies from manufacturer to manufacturer but includes DC high voltage stabilized power supplies, withstand voltage testing/insulation breakdown devices, impulse voltage generators, high voltage pulse generators, and high voltage testing devices.
Uses of high voltage generators vary according to the characteristics of the device, but
The following is a list of examples.
High voltage generators use electronic circuits with an amplification function, called amplification circuits, to convert low voltage to high voltage.
An amplifier circuit is an electronic circuit that produces an output signal of greater energy than the input signal and consists of a capacitor and components such as resistors and diodes.
A typical example is the Cockcroft-Walton circuit.
Cockcroft-Walton circuits are used when a relatively low-current, high-voltage power supply is required, and can create voltages as high as several 10 V to several million V.
The circuit is made up of a capacitor and a rectifier (either a bipolar vacuum tube or a semiconductor diode), and voltage amplification circuits made up of these components are stacked in a ladder-like fashion.
Because the circuit components are simple, they are lightweight and inexpensive compared to transformers.
In an amplifier circuit, when a voltage is applied, a capacitor upstream is charged to a maximum peak value of the input value.
The downstream pole plate then has a potential equal to the sum of this capacitor and the voltage of the power supply.
Because of the rectifier, no current flows through the reverse bias, and as current flows through the forward bias to the next capacitor, the next capacitor is charged to its potential.
By repeating this process, the capacitors are charged in sequence and the potential gradually increases.
Discharging in series in this state produces a high voltage output.
*Including some distributors, etc.
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VJ X-Ray, founded in 2008, is an American manufacturer based in Bohemia, New York, developing X-ray inspection systems. The company specializes in X-ray technology and high-voltage design. Its lineup includes integrated X-ray sources, combining control electronics, high-voltage power supplies, and X-ray tubes. It also develops high-voltage X-ray generators, compact and lightweight units that are optimized for reliability and performance. These products find applications in various industries, for instance, in the electronics sector, the company develops solutions utilizing X-ray sources to count and classify electronic components. The company also serves other industries such as food, medical, and security, with its X-ray inspection solutions.
Polar Power Inc., founded in 1979 as Polar Products, is an American manufacturer based in Gardena, California, providing power and cooling solutions. The company’s product portfolio includes direct current (DC) generators optimized for delivering currents at low voltages, backup DC generators, designed to enhance telecommunication site performance, and hybrid power systems tailored for off-grid and unreliable grid cell sites. The company also offers other products including lithium-ion battery systems equipped with the Battery Management System (BMS), marine DC generators, and mobile rapid battery changers. These products find applications across diverse sectors, including electric vehicles, marine power, military, renewable energy, and telecommunications.
Nidec Corporation traces its roots all the way back to 1908. The company has established itself as an international conglomerate that handles virtually everything that spins and moves. Through its over 300 subsidiaries across the globe, the company manufactures motors that run the spectrum from tiny precision motors in cell phones to motors powering heavy commercial and industrial equipment. The company and its subsidiary's power devices and machines are used in many industrial and personal sectors including agriculture, exercise equipment, HVAC, and refrigeration. Products and services include many varieties of motors, drives, and generators.
Japan Finechem Co.,Inc. manufactures fine and speciality chemicals and industrial electronic components. The company was founded in Tokyo, Japan in 1959 and presently employs 272 employees overall Japan. Their product portfolio for chemicals includes organic and inorganic chemicals, intermediates for food additives and pharmaceuticals, agricultural chemicals and feed additives. In the electronic components sector they manufacture electric machinery equipment and parts such as resistors and resistor boxes. They also produce high voltage measuring devices such as digital meters, probes and dividers. These products are mainly used in industrial equipments, chemical measuring instruments, X-ray apparatuses and electron microscopes.
GMGen Power Systems, founded in 1992, is a manufacturer with dual offices in Melegnano, Italy, and Southampton, England, providing diesel and gasoline power generators. The company’s generator set offerings operate at either 1500 RPM or 3000 RPM. These diesel and gasoline generators come equipped with synchronization systems, allowing surplus power to be supplied back into the utility lines, as well as noise-protective zinc enclosures for reduced noise level outputs. The engines are sourced from global manufacturers, such as Deere & Company (John Deere), Mitsubishi Heavy Industries, Ltd., and Volvo Penta. The company also offers welding generators, high-voltage generator sets, and lightning towers.
ELCOWA s.a., founded in 1965 and based in Mulhouse, France, is a manufacturer developing antistatic equipment and ionizing dust removal systems. The company develops ionizing equipment for neutralizing static electricity and removing dust from products, which include antistatic bars, dust collectors, high-voltage generators, ionized air blowers, and ionizing guns. The company also offers product quality control (PQC) services, conducting inspections to identify foreign bodies in cosmetics and food, detect defects such as missing or non-conforming parts, and determine product discontinuance. Through collaboration with Mesutronic GmbH, the company also provides devices to detect metals in the agriculture, food processing, pharmaceuticals, and textiles industries.
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.
Sansion Power Electric Co. Ltd. is a manufacturer and supplier of power testing equipment that was founded in 2005 in Wuhan, Hubei, China. The company produces systems and equipment for testing voltage, line safety, and current leakage. These include transformer test equipment, insulation resistance testers, and HV switchgear test sets. The company’s products are used in a range of industries including transportation, power generation, and aerospace manufacturing. Some of its notable clients include the China Railway Corporation, China National Offshore Oil Corporation, and China Southern Power Grid Corporation.
Grupos Electrogenos Agresa Sl. (AGRESA), founded in 1981 as Agricola de Repuestos, SL., is a generator supplier based in Manresa, Barcelona, Spain. The company offers a range of generators sourced from manufacturers like Doosan Portable Power (United States), Mitsubishi Heavy Industries, Ltd. (Japan), Perkins Engines Company Limited (United Kingdom), Shandong Kofo Co., Ltd. (China), and Société Internationale des Moteurs Baudouin (France). The company also specializes in generator installation, maintenance, and repair, covering both preventive and corrective maintenance, as well as real-time load bank tests for all components. It also offers rental of generator sets, as well as applications for generator remote control.
HVP High Voltage Products GmbH, established in 2005, is a German supplier headquartered in Martinsried, Munich, specializing in high voltage, low voltage, high power, high frequency, as well as test and measurement components. Among its notable offerings, the company provides various high voltage products, including high voltage amplifiers, capacitor stacks, power supplies, probes, and quick connectors. It also features other products such as axial lead diodes, daytime corona discharge cameras, Klystron modulators, low voltage power supplies, and Marx generators. These products find applications in various sectors and industries, including data centers, electrical utilities, heavy industries, high voltage laboratories, and high-speed electrical trains.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Nidec Motors |
14.9%
|
| 2 | Polar Power Inc |
10.7%
|
| 3 | HVP High Voltage Products GmbH. |
10.7%
|
| 4 | GMGen Power Systems |
8.3%
|
| 5 | Armstrong Power Systems |
8.3%
|
| 6 | Linari Engineering s.r.l. |
8.3%
|
| 7 | ELCOWA s.a. |
8.3%
|
| 8 | Huazheng Electric Manufacturing (Baoding) Co.,Ltd |
8.3%
|
| 9 | VJ X-RAY |
6.6%
|
| 10 | Agresa Grupos Electrógenos |
6.6%
|
Derivation Method
The ranking is calculated based on the click share within the high voltage generator page as of January 2025. 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 (%) |
|---|---|---|
|
United States of America
|
3 | 27.3% |
|
Italy
|
2 | 18.2% |
|
China
|
2 | 18.2% |
|
Japan
|
1 | 9.1% |
|
France
|
1 | 9.1% |
|
Spain
|
1 | 9.1% |
|
Germany
|
1 | 9.1% |
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