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.
Operational
Ambient temperature:
Nominal
operational ambient temperature -20°C-+40°C without power de-rating
Extreme
operational ambient temperature -30°C-+55°C with de-rating
Protection
class: IP55 or above
Isolation
class: Minimum F (155°C) or above
The
motor winding should be suitable for frequency converter (0-100Hz).
Motor
winding protection: option of KL, TH, PT100
Bearing：sealed and greased for full service
life
With
encoder, brake and forced ventilation.
Corrosion
protections and coating:
Corrosion
class ISO 12944
Option
C4 or higher: C4 coating and stainless steel screws and bolts or higher.
