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Discussion History

Main Traction Alternator

Assembly

Three-phase alternator bolted to the engine crankshaft, generating traction power and exciting an auxiliary winding for the blowers. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Main Traction Alternator parts and their functions

6 top-level parts · 110 parts in total · full bill of materials below
Main Traction Alternator parts diagram: 1 stator assembly, 2 rotor assembly, 3 main rectifier, 4 exciter and field control, 5 ball bearing, 6 alternator housing. 110 parts in 6 top-level items.
Main Traction Alternator parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Stator Assembly 3 parts 1× Main stator
2 Rotor Assembly 4 parts 1× Salient-pole rotor
3 Main Rectifier 1× Diode rectifier bank converting alternator AC to the DC traction link.
4 Exciter and Field Control 4 parts 1× Brushless exciter and field regulator controlling alternator output.
5 Ball Bearing 2× Deep-groove radial ball bearing.
6 Alternator Housing 1× Frame and end shields supporting the alternator and rectifier.

3D model

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Build & assembly graph

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Bill of materials for Main Traction Alternator

6 top-level lines · 17 rows shown · 110 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Stator Assembly 3 parts stator-assembly 1× 1 3 assembly
1.1 Stator Core (laminations) stator-core 1× 1 · part
1.2 Copper Winding copper-winding 1× 1 · part
1.3 Slot Insulation stator-insulation 1× 1 · part
2 Rotor Assembly 4 parts rotor-assembly 1× 1 19 assembly
2.1 Rotor Shaft rotor-shaft 1× 1 · part
2.2 Rotor Core rotor-core 1× 1 · part
2.3 Neodymium Magnet neodymium-magnet 16× 16 · part
2.4 Ball Bearing ball-bearing 1× 1 · part
3 Main Rectifier freight-locomotive-rectifier 1× 1 · part
4 Exciter and Field Control 4 parts freight-locomotive-exciter 1× 1 84 assembly
4.1 Bare PCB pcb-bare 1× 1 · part
4.2 Microcontroller mcu 1× 1 · part
4.3 Current Sensor current-sensor 2× 2 · part
4.4 SMD Passive (R/C/L) smd-passives 80× 80 · part
5 Ball Bearing ball-bearing 2× 2 · part
6 Alternator Housing freight-locomotive-alternator-housing 1× 1 · part

Where the main traction alternator is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Freight Locomotive

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $2–$500. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Inovance
inovance.com ↗ 		Shenzhen, CN Drives & motion control 500 units 10–14 wks
🇮🇳Sona Comstar
sonacomstar.com ↗ 		Gurugram, IN EV driveline & motors 500 units 10–14 wks
🇨🇳Broad-Ocean
broad-ocean.com ↗ 		Zhongshan, CN Electric motors 500 units 10–14 wks
🇸🇬Nidec (Singapore)
nidec.com ↗ 		Singapore Motors, regional ops 500 units 10–14 wks
🇮🇳Bosch India
bosch.in ↗ 		Bengaluru, IN Automotive components 500 units 10–14 wks