CRRC Stator Coils for Wind Turbines Above 1.5MW
Stator coils for wind turbines above 1.5MW are core electromagnetic components tailored for high-power wind power generation systems, covering power ranges from 1.5MW to 7MW and above. Specifically engineered for permanent magnet synchronous generators and other mainstream wind turbine generators, these coils serve as the key to energy conversion, directly determining the efficiency, stability, and service life of wind turbine units. Crafted from high-conductivity copper conductors and advanced insulation materials, the coils adopt a vertical winding structure and are treated with the vacuum pressure impregnation (VPI) process, enabling them to meet the rigorous operational demands of high voltage, high current, and long-term continuous operation in complex outdoor environments.As critical components for large-scale wind power equipment, these stator coils are fully compatible with both direct-drive and geared wind turbine systems, seamlessly matching the technical requirements of high-power generators. They are widely applied in onshore and offshore wind farms, capable of withstanding extreme conditions such as strong winds, temperature fluctuations, humidity, and salt spray. Backed by mature design and manufacturing capabilities, we offer customized solutions based on the specific power ratings, voltage levels, and structural dimensions of wind turbines, ensuring perfect adaptation to different generator models and operational scenarios. Meanwhile, we provide full-life-cycle technical support, covering coil design optimization, performance testing, on-site installation guidance, and after-sales maintenance services, to guarantee the reliable operation of wind turbine units.We offer comprehensive life-cycle support for the stator coils, covering equipment supply, on-site installation and commissioning, maintenance training, spare parts provision, and ongoing technical troubleshooting services.
Advantages of CRRC Stator Coils for Wind Turbines Above 1.5MW
Optimized conductor cross-sectional area and winding density enable the coils to stably bear high currents and voltages required by 1.5MW+ wind turbines, realizing efficient energy conversion while minimizing power loss.
High-grade insulation materials paired with the vacuum pressure impregnation (VPI) process create a dense, bubble-free insulation layer, significantly enhancing voltage resistance and reducing insulation breakdown risks to adapt to large wind turbines’ high-voltage working environments.
High-precision vertical winding and strict tension control ensure tight coil turn arrangement, resisting vibration, impact, and centrifugal forces during long-term operation; special anti-corrosion/moisture-proof treatment also enables stable performance in harsh conditions (e.g., offshore salt spray, onshore low temperatures).
Scientific conductor arrangement and structural design, combined with copper’s high thermal conductivity, facilitate rapid heat dissipation—effectively controlling coil temperature rise and ensuring safe operation even under long-term full-load conditions.
High-durability materials and stable performance consistency reduce maintenance/replacement frequency; standardized modular design improves spare part compatibility, further lowering customers’ operation and maintenance costs.
Technical Specifications
Product Model | Stator slots | Rated voltage | Winding pitch | Turns per coil |
| 7MW | 192 | 1400 V | 1-11 | 6 |
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| 8 | 0.14×25 Epoxy polyimide film mica tape DECJ1042 | 1 | 0.5m | 1 |
| 7 | Silicone rubber glass fiber elastic insulating tube | 1 | Full roll 10m | Equipped as required |
| 6 | 0.1×25 Heat-shrinkable tape DECJ1317-1 | 1 | 2m | 1 |
| 5 | 0.09×20Single-sided breathable tape DECJ1511 | 1 | 8.5m | 1 |
| 4 | 0.10×25 Non-alkali glass fiber tape DECJ1319 | 1 | 4.5m | 1 |
| 3 | 0.14×25 Polyester film mica tape DECJ1032 | 1 | 16m | 1 |
| 2 | 0.14×25Epoxy glass mica tape DECJ1514 | 1 | 32m | 1 |
| 1 | 3*(1.75×8.95 /1.25×8.45) Polyimide-fluorine 46 composite film bonded mica tape with copper braided wire MZFM B-50/155 | 1 | 3.76m | Total weight of bare copper wire: 722 kg |
| ——END—— | ||||
Technical Requirements
1.Insulation specifications and insulation test specifications shall be implemented in accordance with W-CEABD-000002 Technical Conditions for Stator Coil Ordering.
2.Each unit contains 192 coils, of which:
48 coils: outgoing wire length at the coil bottom = 100, 380
96 coils: outgoing wire length at the coil bottom = 100, 100
48 coils: outgoing wire length at the coil bottom = 380, 100
3.All lead wires shall have the strand insulation stripped off. Long lead wires: 340; short lead wires: 60.
4.Stator slots: 192
Rated voltage: 1400V
Winding pitch: 1–11
Coil turns: 6
5.The consistency of the straight section length and end dimensions of the 192 coils shall be within 1mm.
6.The core adopts a skewed slot structure, skewed 1 slot (1.875°) clockwise when viewed from the lead wire end [G].
The stator coil ends shall be adjusted according to the core to ensure uniform inter-slope gaps.
coming soon…
Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.
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