logo
player background
live avator

5s
Total
0
Today
0
Total
0
Today
0
  • What would you like to know?
    Company Advantages Sample Service Certificates Logistics Service
Online Chat WhatsApp Inquiry
Auto
resolution switching...
Submission successful!
Home > Products > Permanent Magnet Generator >
High-Efficiency 3phase AC Synchronous Permanent Magnet Generator with 48-1140Vac Output and 60/50Hz Frequency for Low Water Flow Applications

High-Efficiency 3phase AC Synchronous Permanent Magnet Generator with 48-1140Vac Output and 60/50Hz Frequency for Low Water Flow Applications

High-Efficiency Permanent Magnet Generator

48-1140Vac PMG

60/50Hz 3phase AC Synchronous Generator

Brand Name:

Greef

Certification:

CE

Model Number:

GDF

Contact Us
Request A Quote
Product Details
Generatror Shell Material:
Cast Iron
Current Type:
AC
Protection G:
IP54
Magnet Type:
NdFeB
Cooling Method:
Fan Cooling
Stator Material:
Copper
Generator Type:
3phase AC Synchronous Generator
Bearing Brand:
SKF
Highlight:

High-Efficiency Permanent Magnet Generator

,

48-1140Vac PMG

,

60/50Hz 3phase AC Synchronous Generator

Payment & Shipping Terms
Minimum Order Quantity
1 Set
Price
Negotiable
Packaging Details
Foam+plywooden Case
Delivery Time
25 Working Days
Payment Terms
T/T
Product Description
3phase AC Synchronous Generator Permanent Magnet Generator
High-Efficiency Hydro PMG for Electricity Generation
Product Overview

Permanent Magnet Generators offer high efficiency energy conversion, particularly at partial load, and require no separate field excitation system. Our generators are lighter, more efficient, and require less assembly labor than competing designs.

These generators are used in numerous applications including Wind Turbines, Hydro Turbines, motors, and other industrial applications.

Technical Specifications
Rated power 0.5-5000 kW
Rated rotate speed 20-3000 rpm
Rated voltage 48-1140 Vac
Frequency 60/50 Hz
Number of Poles 24
Generator type 3phase AC Synchronous generator
Magnet type NdFeB
Winding Method Y
Magnet temperature level Max.120℃
Winding temperature level Max.180℃
Efficiency >95%
Insulate Grade H
Insulating resistance 100Mohm Min(500Vdc)
Classification of degrees IP54
Generator shell material Cast Iron
Winding material 100% Copper
Shaft material Steel
Iron Core Cold rolled silicon steel sheet
Bearing brand SKF
Cooling Method Fan Cooling
Weight (N.W /G.W) 132kg /152kg
Packing Size 870*470*570mm
Installation Horizontal
Performance Ratings
RATED POWER RATED SPEED RATED VOLTAGE FREQUENCY
0.5KW 20rpm~400rpm 12V~220Vac 10Hz~60Hz
1KW 20rpm~600rpm 12V~220Vac 10Hz~60Hz
2KW 20rpm~1000rpm 12V~400Vac 10Hz~60Hz
3KW 20rpm~1500rpm 48V~690Vac 10Hz~60Hz
5KW 20rpm~1500rpm 48V~690Vac 10Hz~60Hz
10KW 20rpm~1500rpm 120V~690Vac 10Hz~60Hz
15KW 20rpm~3000rpm 120V~690Vac 10Hz~60Hz
20KW 20rpm~3000rpm 120V~690Vac 10Hz~60Hz
25KW 20rpm~3000rpm 120V~1140Vac 10Hz~60Hz
30KW 20rpm~3000rpm 120V~1140Vac 10Hz~60Hz
50KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
80KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
100KW 20rpm~3000rpm 220V~1140Vac 10Hz~60Hz
150KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
200KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
250KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
300KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
500KW 20rpm~3000rpm 380V~1140Vac 10Hz~60Hz
700KW 20rpm~3000rpm 690V~1140Vac 10Hz~60Hz
800KW 20rpm~3000rpm 690V~1140Vac 10Hz~60Hz
1MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
2MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
3MW 200rpm~3000rpm 690V~1140Vac 10Hz~60Hz
4MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
5MW 600rpm~3000rpm 690V~1140Vac 10Hz~60Hz
High-Efficiency 3phase AC Synchronous Permanent Magnet Generator with 48-1140Vac Output and 60/50Hz Frequency for Low Water Flow Applications 0 High-Efficiency 3phase AC Synchronous Permanent Magnet Generator with 48-1140Vac Output and 60/50Hz Frequency for Low Water Flow Applications 1
Permanent Magnet Generator (PMG) Advantages

A Permanent Magnet Generator (PMG) is an advanced type of electric generator that utilizes high-strength permanent magnets on its rotor to create a powerful magnetic field, instead of relying on traditional electrically-excited windings.

This innovative design offers significant advantages:

  • Higher Efficiency: Reduces energy losses, resulting in superior efficiency, especially under partial loads.
  • Exceptional Reliability: Brushless structure ensures minimal maintenance and a longer operational lifespan.
  • Compact & Lightweight: Offers a higher power density, making it ideal for space-constrained applications.
  • Excellent Performance: Provides superior voltage regulation and faster response.

PMGs are the ideal power solution for wind turbines, marine applications, backup power systems, and any scenario demanding reliable and efficient energy conversion.

Applications

Permanent Magnet Generators (PMGs), known for their high efficiency, reliability, and compact design, have become the preferred power solution in a wide range of modern industrial fields:

  • Wind Power Generation: Core component in modern direct-drive and semi-direct-drive wind turbines
  • New Energy Vehicles: Used in electric and hybrid vehicles as main traction motor or auxiliary generator
  • Marine and Offshore: Ideal for ship shaft generators and main/auxiliary power systems
  • Backup Power Systems: Used in diesel and gas generator sets for emergency power
  • High-Speed Applications: Suitable for microturbines and flywheel energy storage systems
  • Industrial & Military Equipment: Employed where high power density and reliability are critical
Customization Options
  • Brand Name: Greef
  • Model Number: GDF
  • Place Of Origin: China
  • Certification: CE
  • Minimum Order Quantity: 1 Set
  • Price: Negotiable
  • Packaging Details: Foam+plywooden Case
  • Delivery Time: 25 Working Days
  • Payment Terms: T/T
  • Protection Grade: IP54
  • Generator Shell Material: Cast Iron
  • Rated Voltage: 12-1140V
  • Cooling Method: Fan Cooling
  • Shaft Material: Steel
Packing and Shipping

Package Contents:

  • Permanent Magnet Generator x 1
  • Instruction Manual x 1
  • Mounting Hardware x 1 set

Shipping Information:

  • Shipping Method: Standard Shipping
  • Estimated Delivery Time: 5-7 business days
  • Shipping Cost: $10.00
Ratings& Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

B
B*n
Sweden Oct 17.2025
My farm is 30 kilometers from town, and connecting to the power grid would cost a fortune. Three years ago, I installed a solar panel system with a battery bank. It was sufficient during spring, summer, and fall, but in winter, we often had a week of consecutive overcast days—and the batteries would run out in just three days. Last year, I decided to add a variable-pitch wind turbine, connected it to the AC coupling port of the Deye inverter, and set up a hybrid solar-wind system. Throughout the entire winter, the battery level never dropped below 45%, and I never had to work in the dark again. The Deye app allows me to monitor both the solar and wind turbine data simultaneously, and the transition between them is so smooth it’s almost imperceptible. Relying solely on solar power during winter on a Nordic farm is a gamble. Only by combining a variable-pitch wind turbine with a Deye inverter—creating a wind-solar hybrid system—can you get through the winter with peace of mind.
J
J*n
Norway Apr 8.2024
I run a small dairy farm in northern Norway, far from the power grid. A few years ago, I installed solar panels and a Deye inverter, but the solar system basically stops working in winter, and the diesel generator was costing me a fortune. This year, I added this variable-pitch wind turbine and connected it to the Deye inverter for a hybrid solar-wind system, and we haven’t had a single power outage all winter. This wind turbine starts up at low wind speeds of just 2–3 on the Beaufort scale. During blizzards, the blades automatically pitch down to slow the turbine, preventing runaway speeds, and it’s much quieter than my neighbor’s fixed-pitch model. The Deye inverter’s switching logic is smart—it prioritizes solar power when available, and automatically switches to the wind turbine when solar output drops. It’s all clearly visible on the app. Now, the diesel generator is practically idle. Wind and solar backing each other up—that’s true off-grid freedom.
L
L*s
Czech Republic May 4.2023
“I built a small pico hydro system on the creek behind my off-grid cabin. The water head is only 3 meters and flow rate around 0.2 m³/s – too low for most generators. This axial flux coreless unit starts generating usable power at just 150 RPM. No cogging, no iron loss, and it’s silent. I’m getting 300-400W continuously, 24/7. My old induction generator would barely light an LED at that speed. Absolutely perfect for low-head hydro.”

Send your inquiry directly to us

Privacy Policy China Good Quality Permanent Magnet Alternator Supplier. Copyright © 2019-2026 Qingdao Greef New Energy Equipment Co., Ltd . All Rights Reserved.