Electrical Power Systems for Various Use
As electrical power systems for various use, we offer frequency converters utilizing rotary machinery and, as rotary power generator application products, high-speed rotary machinery, load regeneration systems, and transmission testing devices.
Rotary Frequency Converter
To cater to special power supply needs such as test-condition power supply, factory power supply can be converted to the voltage and frequency needed to meet test requirements through the combination of a motor (and induction motor or a synchronous motor) and a synchronous generator.
Rotary Frequency converters can also handle parallel operation of several machines
| Device combination | Frequency | Voltage |
|---|---|---|
| Induction motor (IM) – synchronous generator (SG) | Fixed frequency 50 Hz ⇔ 60 Hz, etc. |
Capable of handling both low and high voltage Variability possible through magnetic field adjustment |
| Induction motor (IM) – synchronous generator (SG) Variable speed control by inverter (INV) |
Variable frequency 25 to 75 Hz, etc. |
Capable of handling both low and high voltage Variability possible through magnetic field adjustment |
| Synchronous motor (SM) – synchronous generator (SG) Variable speed control by synchronous motor |
Variable frequency 25 to 75 Hz, etc. |
Capable of handling both low and high voltage Variability possible through magnetic field adjustment |
*Please consult with us regarding detailed specifications.
- Relevant catalog
- Rotary Frequency Converter [PDF/325KB]
Rotary machinery application systems
High-speed rotary machinery
Permanent magnet generator (PMG) technology enables power generation with high-speed and low-speed drive machinery.
| Device combination | Application | Features |
|---|---|---|
| Permanent magnet generator (PMG) + AC/DC converter + DC/AC inverter |
For hydraulic, wind, and tidal power generation (Low-speed/variable speed) |
Accommodates low-speed rotation such as in natural energy power generation, etc. |
| Turbo charger (High-speed/variable speed) |
Accommodates high-speed rotation to over 10,000 revolutions. | |
| Turbine engine (Gearless, direct-connection, high-speed) |
Accommodates high-speed rotation to over 10,000 revolutions. | |
| Reciprocating engine (Variable speed) |
Accommodates fluctuating rotation |
*Please consult with us regarding detailed specifications.
Load regeneration system
Energy released as heat due to water resistance and dry resistance can be effectively utilized through system regeneration.
Product features
- As with water resistance, load adjustment is possible.
- Power semiconductor device (IGBT) – Reduces the higher harmonics of input and output through inverter PMW control and filter circuit.
- A product lineup with single-unit capacity ranging from 7.5 kW to 630 kW.
*Please consult with us regarding detailed specifications.
Transmission testing devices
Through a combination of generator technology and drive technology, load testing and torque measuring of transmission, etc. can be carried out.
Product features
- Reduced power supply capacity through direct current regeneration.
- Low voltage system for easy handling.
- Size increase made possible through use of multi-winding rotary machinery.
*Please consult with us regarding detailed specifications.