For AC generators (alternators) classified in statistical reporting number 8501.64.0110
Parts suitable for use solely or principally with the machines of heading 8501 or 8502: > Other: > Other > Parts of generators: > For AC generators (alternators) classified in statistical reporting number 8501.64.0110
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
Products classified under HTS 8503.00.95.46
DC Link Capacitor Assembly for Wind Turbine Alternators
This capacitor assembly is a critical power electronics component used in the inverter systems of AC generators classified under 8501.64.0110, such as those in wind turbines. It smooths voltage fluctuations in the DC link between the generator rectifier and inverter. It falls under HTS 8503.00.95.46 as a part solely for these specific high-capacity AC alternators.
Stator Winding Insulation Paper for Large AC Generators
High-voltage insulation paper specifically engineered for stator windings in AC generators rated ≥5 MVA under 8501.64.0110. It provides dielectric strength for high-temperature operation in wind power alternators. Classified in 8503.00.95.46 due to its principal, sole use in these specific machines.
IGBT Power Module for Wind Generator Converters
Insulated Gate Bipolar Transistor module rated for megawatt-scale power conversion in AC generators of 8501.64.0110. Essential for the variable frequency drive systems in modern wind turbines. HTS 8503.00.95.46 applies as a part principally used with these specific alternators.
Rotor Retaining Ring for High-Speed Alternators
High-strength alloy steel retaining ring that secures rotor windings against centrifugal forces in AC generators spinning at 1500+ RPM under 8501.64.0110. Forged specifically for wind turbine alternator rotor assemblies. Falls under 8503.00.95.46 as a principal part of these machines.
Cooling Fan Impeller for Generator Housings
Precision-cast aluminum impeller for forced-air cooling systems in enclosed AC generators classified in 8501.64.0110. Designed for high airflow at generator operating temperatures up to 155°C. HTS 8503.00.95.46 as a part solely principally for these large alternators.
Exciter Field Winding Assembly
Copper winding assembly for the exciter section of brushless AC generators under 8501.64.0110. Provides rotating DC field excitation for main generator rotor. Classified in 8503.00.95.46 as principal part of these specific high-capacity alternators.
Bearing Sleeve for Generator Main Shaft
High-tin Babbitt-lined steel sleeve bearing for main rotor shafts in AC generators of 8501.64.0110. Designed for continuous duty at 3000 kW+ power levels. HTS 8503.00.95.46 as part principally used with these alternators.
Slip Ring Assembly for Wound Rotor Generators
Forged copper-graphite slip ring stack with spring pressure assembly for rotor current transfer in AC generators under 8501.64.0110. Rated for continuous 1000A+ currents. Classified 8503.00.95.46 as principal electrical contact part.
Phase Separator for Generator Hydrogen Cooling
Stainless steel phase separator for hydrogen-cooled AC generators classified in 8501.64.0110. Manages gas/liquid separation in closed-loop cooling systems of large turbine generators. HTS 8503.00.95.46 as cooling system principal part.
Control Cabinet Mounting Frame for Generator Controls
Galvanized steel precision frame for mounting excitation control panels and protection relays in AC generators of 8501.64.0110. Provides vibration isolation and EMI shielding. Classified under 8503.00.95.46 as structural principal part.