ICNEA 3821—Transformer, rectifier and inductor manufacturing

Where 3821 sits

1. C Manufacturing industry
2. 38 Electrical machinery and equipment manufacturing industry
3. 382 Power transmission and distribution and control equipment manufacturing
4. 3821 Transformer, rectifier and inductor manufacturing

What 3821 includes

• Includes manufacturing activities for the following transformers, rectifiers and inductors：
• Transformers: power transformers, converter transformers, dry transformers, test transformers, power transformers, adjustable power transformers, other transformers
• Transformers: voltage transformers, current transformers, combined transformers
• Static converter
• Stabilized power supply: stabilized power supply for computers, DC stabilized power supply, AC stabilized power supply, and other stabilized power supplies
• Steady current power supply, uninterruptible power supply (UPS)
• Semiconductor converter: single crystal semiconductor rectifier, polycrystalline semiconductor rectifier
• Gas discharge converters: mercury arc rectifiers, thermion rectifiers, electrolytic rectifiers
• Inverter: semiconductor inverter, self-synchronous voltage source inverter, dual-mode inverter, other inverter
• AC converter, AC frequency conversion equipment, DC converter
• Other stationary converters
• Reactors: shunt reactor, series reactor, yoke current saturation reactor, current limiting reactor, filter reactor, start-up reactor, self-saturation reactor, amplitude modulation reactor, test reactor, rectifier balanced reactor, rectifier flat wave reactor, Yin Ni reactor, grounding reactor, intelligent reactor, energy-saving reactor, Other reactors
• Inductors: fixed and color code inductors, laminated chip inductors, wire wound chip inductors, energy-saving inductors, LC filters, other inductors
• Transformer, rectifier and inductor parts
• The following product manufacturing activities are included in this category
• High-performance frequency conversion speed control equipment
• Lightweight new transformer
• Intelligent large transformer
• Intelligent DC converter transformer
• Intelligent reactive power compensation equipment
• High-power charge and discharge controller
• Bidirectional converter
• Energy-saving transformer
• Static energy-saving converter
• Inverter
• Harmonic control equipment
• Small and medium-power rare earth permanent magnet coreless motor
• Variable pole starter non-slip ring winding rotor induction motor
• Small and medium-sized three-phase asynchronous motors (energy efficiency levels 1 and 2)
• High-voltage frequency conversion speed control technology device
• Plant insulating oil transformer
• Amorphous alloy transformer
• Dry half-core reactor
• Shell type electric furnace transformer
• Three-dimensional coil iron core dry-type transformer
• Refers to the manufacture of power electronic equipment and transformers such as transformers and static converters.

3821 in other systems