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This section provides an overview for dc reactors as well as their applications and principles. Also, please take a look at the list of 11 dc reactor manufacturers and their company rankings. Here are the top-ranked dc reactor companies as of December, 2024: 1.Controlled Magnetics, Inc, 2.Enjoye electronic, 3.Fuji Electric FA Components & Systems Co., Ltd..
Table of Contents
Among reactors, which are also inductance devices, a DC reactor is a coil used to insert reactance into the smoothing circuit after the inverter converter.
Specifically, a DC reactor is often used to improve the power factor and suppress harmonics. It is recommended by manufacturers for installation when the power supply capacity is large, ranging from several KV to several 100KV, or more than 10 times the inverter capacity.
In addition to power factor improvement and harmonic suppression, DC reactors are also used to secure the impedance of the power supply line. Power supply line applications are also known as choke coils. DC reactors are often used together with AC reactors, and in this case, a further harmonic suppression effect can be expected.
In actual products, inverter circuits are used in a wide range of applications such as air conditioning equipment and motors. It can be said that inverters are indispensable, especially in high currents. There is also the implication of smoothing the ripple that occurs in the converter circuit from AC to DC.
In an inverter circuit, a phase adjustment element called a phase advance capacitor (SC) is usually inserted to adjust the load phase. Although this capacitor is highly effective in improving the power factor, it has the side effect of increasing harmonic components and requires a reactance element to adjust the harmonic impedance of the circuit.
This harmonic suppression is necessary to maintain the quality of the commercial power supply. Specified customers are those who receive power at special high voltage (voltage exceeding 7KV) and high voltage (AC voltage between 0.6KV and 7KV) to which guidelines apply, and most offices and buildings fall under this category.
However, the structure of a reactor is typically a wound coil, with various types available such as oil-filled self-cooling types and those using an iron core.
*Including some distributors, etc.
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Controlled Magnetics Inc., founded in 1988 with headquarters in the USA, is a manufacturer of transformers and power conversion magnetic products. The company's products include single-phase control transformers, three-phase drive isolation transformers, machine tool control transformers, drive isolation transformers, and AC and DC inductors. Controlled Magnetics’ products are also found in power systems for factories, hospitals, medical facilities, and photovoltaic systems. The company also offers custom transformers for machine tool control, medical, marine, and computer-grade applications, as well as repair and rebuilding services.
Powtran Technology (Dalian Powtran Technology Co., Ltd.), established in 2001 and headquartered in Shenzhen, China, with 30 offices across the country, specializes in electrical transmission engineering technology and is a manufacturer, distributor, and supplier of performance vector control inverters, servo drives, and new energy management technologies. The company's main products include electromagnetic control systems, frequency inverter integrated cabinets, and integrated motor control devices. These products are used to reduce energy consumption and increase energy efficiency for applications, including managing power for industrial machinery, municipal engineering projects, and new energy-powered transportation systems.
SK Electric Power Supply, founded in 1993 and headquartered in Shanghai, China, is a manufacturer of transformers, power distribution units, and sheet metals. The company mainly produces power transformers, high-frequency and planar transformers, AC and DC reactors, and X-ray sources. It also offers full-service sheet metal manufacturing and assembly of cable and harnesses, printed circuit boards, switchboards, and control cabinets. The company holds ISO 13485, ISO 9001, ISO 14001, and OHSAS 18001 certifications. It caters to diverse sectors, including medical, industrial machinery, railway and transportation, consumer electronics, and new energy.
Reelen Enterprise, established in 2009 and located in Yueqing City, China, is a manufacturer and exporter specializing in a wide range of electrical products such as power transformers, AC reactors, and more. The company's diverse product line includes machine tool control transformers, lighting control transformers, auto voltage-reducing starter transformers, three-phase isolation transformers, step-up and step-down transformers, and others. It exports these products to various countries, including the US, Southeast Asia, the Middle East, Europe, and South America.
Shanghai Eagtop Electronic Technology Inc., established in 2003, is a manufacturer of passive power electronics devices, based in Shanghai, China. The company’s main products include film capacitors, laminated busbars, composite superconducting flat heat pipes, resistors, and EMC filters. These products are used in many fields such as industrial drive, new energy, railway transportation, and power quality. It provides comprehensive solutions to the electronic passive device for worldwide customers with over 1,000 well-trained employees. It has also passed the certification of quality management system ISO9001:2008 and ISO/TS16949-20094.
Shenzhen Kewo Electric Technology Co. Ltd., established in 2010 and based in Shenzhen, Hong Kong, operates as a manufacturer of AC drives, variable frequency inverters, soft start inverters, solar pump inverters, etc. The company's products include drive peripheral equipment, variable frequency inverters, solar pump inverters, solar pump inverter cabinets, and more. These products serve various sectors, such as industrial automation, cement, textiles, oil & gas, water treatment, and more. The company has established two modernization production lines, a digital quality control system, a code bar tracking system, an ERP management system, etc.
Enjoye Electronic, founded in 2011 and headquartered in Shandong, China, is a manufacturer and supplier of electromagnetic interference filtering and power surge components. The company's product line includes EMI and EMC filters and input and output reactors for inverters. These components are widely used in the production of electronic devices, such as smartphones, home appliances, and medical equipment, to name a few, to reduce electromagnetic interferance between components and other devices and also to harmonize power supply by limiting high-frequency interference voltages and currents.
Fuji Electric FA Components & Systems Co., Ltd., established in 2008, the company is a result of a merger between Fuji Electric FA Components & Systems and the Japanese arm of Schneider Electric S.A., the second largest manufacturer in the same field, is a manufacturer of control instruments, such as electromagnetic switches that use electromagnets to open and close the contact points of electrical circuits. The company have a global presence, offering many power-receiving and distributing devices that can be used in cross-border markets through its wide range of products that conform to major standards in the world.
HOWCORE is a manufacturer and supplier of electromagnetic and power quality solutions founded in 2006 and headquartered in Shanghai, China. The company’s product portfolio includes reactor series, resistors, filters, transformers, and inductance series. It also offers DC braking modules, heaters, load series, and capacitors. These products are designed to minimize electricity consumption, reduce grid pollution, and improve power transmission efficiency. The company is certified to ISO 9001, CE, and UL. It serves the needs of various sectors, including petroleum, chemical, metallurgy, transportation, and construction.
Toshiba Schneider Inverter Corporation, established in 1998 and based in Nagoya, Aichi Prefecture, is a manufacturer and supplier of industrial inverters. The company's product range includes the high-performance driveTOSVERT VF AS3, CompactTOSVERT VF S15, and Compact. SimpleTOSVERT VF nC3, and related components. These products are designed for a variety of applications, from enhancing energy efficiency in machinery to precise operation controls. They serve industries such as food processing, machinery tools, farming, and wrapping. Additionally, its services span development, design, manufacturing, and product testing.
Yaskawa America Inc., started in 1967 and based in Waukegan, Illinois, is a manufacturer of machine controllers, industrial robots, and variable frequency drives and is part of Yaskawa Electric Corporation. Some of its products include industrial AC drives, machine controllers, and IEC programmable robots. The company incorporates the Kaizen method of continuous incremental improvements and Total Quality Management processes to prevent manufacturing defects, and its distributors must be certified and re-certified every two years. It is ISO 9001 certified and is the only industrial drives and motion control manufacturer to win the Deming Medal.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Controlled Magnetics, Inc |
23.8%
|
| 2 | Enjoye electronic |
14.3%
|
| 3 | Fuji Electric FA Components & Systems Co., Ltd. |
11.9%
|
| 4 | Toshiba Schneider Inverter Corporation |
9.5%
|
| 5 | DaLian Powtran Technology Co., Ltd. |
7.1%
|
| 6 | HOWCORE |
7.1%
|
| 7 | SK Electric Power Supply |
7.1%
|
| 8 | Yaskawa America, Inc. |
7.1%
|
| 9 | Reelen Enterprise |
4.8%
|
| 10 | SHENZHEN KEWO ELECTRIC TECHNOLOGY CO., LTD. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the dc reactor 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 | 70.0% |
|
Japan
|
2 | 20.0% |
|
United States of America
|
1 | 10.0% |
16 products found
16 products
Fujimi Electric Manufacturing Co., Ltd.
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Kitamoto Tech Co., Ltd.
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■Features A reactor is a type of inductance made by winding a conducting wire (copper wire) into a coil. In electrical circuits, they are used for ...
Tokyo Koden Co., Ltd.
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Very Fast Response
■Features - Compact design using cut core. A vertical version is also available upon request. ・In addition to the 400V model, low-loss amorphous s...
Musashino Tsuko Co., Ltd.
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A reactor for harmonic countermeasures and power factor improvement. Super E core and amorphous specifications suitable for various power condition...
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A reactor for harmonic countermeasures and power factor improvement. Super E core and amorphous specifications suitable for various power condition...
Kyushu Kiden Co., Ltd.
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5.0 Company Review
■Summary Suppresses harmonics generated on the inverter input side. It also helps improve the power factor. There are other model numbers as well.
10 models listed
