Basic Parameter for YP90-8-A
Rated power90kWdutyS1
Rated voltage505VInsulation classH　
Rated current150AIPIP55　
Rated rpm600r/minPeak rpm3800r/min
Rated torque1432 N•mStarting torque2600 N•m
Rated frequency40.75HzCooling methodIC3W7　
Rated efficiency 92.2%weight890kg

Basic Parameter for TFW3554-4 brushless synchronous motor
Rated capacity　620kVAdutyS1
Rated voltage　690VPower factor 0.95
Rated current518.8AInsulation class　H级
Rated rpm　2100r/minIP　IP23
Rated frequency　70HzCooling method　IC01
Rated efficiency　95.2%WEIGHT　2100kg

Traction motor system for 90t Electric wheel dump truck is developed and manufactured by CRRC Zhuzhou Electric Co., LTD, including 1 set of brushless synchronous motor and 2 sets of variable frequency speed regulating asynchronous motor. The motor has rated power of 90kW, rated torque of 1432 N•m and starting torque of 2600 N•m. It prevails among its industry counterparts with regard to system reliability, property performance and economic costs.
The motor inherits the advanced R&D and manufacturing technology and quality assurance system in railway traction motor and optimizes the product according to electric wheel applicative particularity, able to adapt to such adverse environment as heavy shock, low temperature, dust, salt and high-altitude and operate safely and reliably under such special operation condition as 20% equivalent gradient, operating at peak torque during continuous 60s, frequent staring and braking. Based on lightweight and small-size design, unit motor mass per torque is 0.2kg/ N•m with constant power rpm over 4 times and rated efficiency 92.2%.

Parameter Name	Parameter Value
AC/DC	AC
Type	brushless
Protection class	IP55
Applications	traction
Power (W)	90000 - 90000
Torque (Nm)	432 - 432
Rotational speed (rpm)	600 - 600