Variable-speed Induction Pitch Motors

WEAVF&WEVF Series

Variable-speed and Variable-frequency Three Phase Induction Pitch Motors

Technical Characteristics:

Output Power (kW) 5.5-30

Frequency (Hz) 0-100

Operation Temp. (°C) -40-60

Operation Altitude (m) 0-4900

Protection Class IP55 or above

Insulation Class F or above

Nominal operational ambient temperature -20°C-+40°C without power de-rating

Extreme operational ambient temperature -30°C-+55°C with de-rating

Isolation class Minimum F (155°C) or above

Motor winding protection option of KL, TH, PT100

Bearing sealed and greased for full service life

Corrosion protections and coating: Corrosion class ISO 12944

Option C4 or higher: C4 coating and stainless steel screws and bolts or higher.

The motor winding should be suitable for frequency converter (0-100Hz).

Product Detail

Wonder WEAFV&WEVF Series Pitch Motors are variable-frequency and variable-speed three phase induction motors designed for the pitch system of wind turbine, working with the planetary reduction gearbox inside. The motors are suitable for turbines of 1.5MW-6MW.

Wonder pitch motors can run in extreme environment where the air is with salt fog and sand. They have strong capacities of anti-vibration, overload, fast response, accurate positioning and high brake torque, etc. The electrical design of the pitch motors is able to sustain the impact power of high order impulse wave of the inverter applied to the motor. With the inverter, Wonder pitch motors realize a wide range of speed and precise control. Wonder adopts brakes imported with original package, encoders, Harting connectors and sealed self-lubricated bearings, which guarantees the safety and reliability of our products.

Forced fans are optional according to customers’ requirements.