IE5 synchronous reluctance motors (SynRM), 380–480 V
Country: USA · Model: SynRM
Synchronous reluctance motors (SynRM) of efficiency class IE5 at 380–480 V, 7.5–30 hp per the line card. Torque is created by the magnetic anisotropy of the rotor; there are no windings or permanent magnets in the rotor. The motors are totally enclosed fan cooled (TEFC), at 3600 and 1800 rpm, and run only from a frequency converter.
- Efficiency class
- IE5
- Voltage
- 380–480 V
- Speed
- 3600 / 1800 rpm
- Magnets
- no rare-earth magnets
Technical specifications
| Efficiency class | IE5 |
|---|---|
| Voltage | 380–480 V |
| Speed | 3600 / 1800 rpm |
| Magnets | no rare-earth magnets |
| Supply | from a frequency converter |
| Enclosure | TEFC |
| Power | 7.5–30 hp (per the line card) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
Electric motors account for more than 45 % of world electricity consumption, and their use is expected to double by 2040. The manufacturer has been researching synchronous reluctance machines since 2015 and optimizing their parameters. The absence of rare-earth magnets reduces dependence on scarce materials and simplifies disposal. Efficiency is higher than in induction machines at low speeds and at partial load, which is beneficial in pumps and fans with variable flow. A rotor without currents and cage losses runs cooler, so the service life of bearings and insulation is extended. According to the website and the line card the motors are made for 380–480 V, and the range of 7.5–30 hp is given at 460 V. They are produced at plants of the group to which the manufacturer belongs.
How to choose
The motor works only with a frequency converter, so select a VFD for 380–480 V in advance. A speed of 3600 or 1800 rpm is chosen for the pump or fan. The biggest efficiency gain comes from variable-flow machinery running for long periods at low speeds and partial load. If a power above 30 hp is needed, look at the MAX-E1 induction motors at 0.75–800 hp.
Request a price and lead time
IE5 synchronous reluctance motors (SynRM), 380–480 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
Can the SynRM run without a frequency converter?
No, these motors run only from a frequency converter. The supply voltage is 380–480 V.
Why does the SynRM have no magnets or winding in the rotor?
Torque is created by the magnetic anisotropy of the rotor. Therefore rare-earth magnets are not needed, and disposal is simpler.
What are the power and speed of these motors?
Per the line card 7.5–30 hp at 460 V, speeds of 3600 and 1800 rpm.
Why is the SynRM better than an induction motor in a pump?
Efficiency is higher at low speeds and at partial load, and a rotor without cage losses runs cooler, which extends the service life of bearings and insulation.
What efficiency class do these motors have?
IE5, in the totally enclosed fan cooled TEFC version.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.