50KW Permanent Magnet Generator — Low-RPM Alternator for Wind, Hydro & Off-Grid Power

Generate Power from Motion.

A permanent magnet generator (PMG) converts mechanical rotation into electrical power without requiring an external excitation source — the magnets are built in, so it generates electricity as soon as it spins. This 50KW unit is designed for low-RPM applications like wind turbines, micro-hydro systems, and other renewable energy installations where a large, efficient generator is needed to produce meaningful power output from slow-moving mechanical sources.

Features

• 50KW rated output — high-power generator suitable for large-scale off-grid or grid-tie renewable energy systems
• Permanent magnet design — no external excitation required; generates power immediately upon rotation without a separate field winding
• Low-RPM operation — designed to generate useful power at low rotational speeds; ideal for direct-drive wind turbines and micro-hydro applications
• Three-phase AC output — three-phase output for efficient power transmission and compatibility with grid-tie inverters and rectifiers
• High efficiency — permanent magnet design minimizes energy losses compared to wound-field generators
• Durable construction — industrial-grade housing and bearings for long-term outdoor installation
• Direct-drive compatible — can be coupled directly to a turbine or water wheel without a gearbox in appropriate applications

Who It’s For

• Wind turbine builders and installers who need a high-power, low-RPM generator
• Micro-hydro system builders who need an efficient generator for water wheel or turbine applications
• Off-grid property owners who need large-scale renewable power generation
• Engineers and system integrators building custom renewable energy installations

How to Use

1. Mount the generator to your turbine or mechanical power source using the appropriate coupling or flange.
2. Connect the three-phase AC output to a rectifier (for DC battery charging) or a grid-tie inverter (for AC output).
3. Connect the rectifier or inverter output to your battery bank or grid connection.
4. Monitor output voltage and power using appropriate metering equipment.
5. Ensure the generator is properly grounded and protected from the elements for outdoor installation.

Frequently Asked Questions

What RPM does it need to reach 50KW output?
Check the variant specifications for the rated RPM at full output. Low-RPM PMGs typically reach rated output at 100–500 RPM depending on the design — significantly lower than conventional generators that require 1500–3600 RPM.

Does it require a charge controller or inverter?
Yes — the three-phase AC output must be rectified to DC for battery charging (using a rectifier and charge controller) or converted to grid-compatible AC (using a grid-tie inverter). The generator alone does not produce usable household AC power without additional power electronics.

Is installation complex?
Large-scale generator installations require mechanical engineering for proper coupling, electrical engineering for safe wiring, and compliance with local electrical codes. Professional installation is strongly recommended for a 50KW system.