China 475kw 750rpm Permanent Magnet Generator for Mini Hydro Turbine

permanenet magnet generator ,750rpm,1500rpm,3000rpm,1800rpm

Brushless structure. Compose speed regulation system with variable frequency. It can realize speed regulation system under constant torque, which is much improved comparing with other existing variable frequency speed regulation motors.
Motor with high efficiency, especially can operate efficiently in the whole speed range, saving energy and reducing long-term operating costs. The cost of the motor can be taken back in one and a half year by saving power.
The motor and variable frequency converters compose speed regulation system. It can operate in the same pace of the frequency. Do not have slip difference problem, high control accuracy.
Without encoders or rotary transformers, motors can compose open loop control systems with frequency converters. Motor connect with converter only by 3 power cables, improving the reliability, especially suitable for bad outdoor environments such as oil fields, mines or other circumstances which require high reliability.
With encoders or rotary transformers, the motors and frequency converters can compose closed loop control system, having high accuracy of speed control, especially suitable for the situations which have special requirements of speed, such as numerical control machines.
The voltage is 220V or 380V, 50Hz, 3 phase, F insulation, B3 or B35 installations, Protection class: IP54.
Motor's power factor is nearly 1, improving the Q factor of the network. Do not need power factor compensators.
Small electric current, saving power transmission and distribution capacity, extending the system operation life.
Can achieve soft startup, soft stop, stepless speed regulation. The speed can be customized according to the requirements of users.