High Speed Air Cooled — High-Speed Air-Cooled Induction Motors (TEFC, TENV, DPFC, ODP) up to 450 hp, up to 30 000 rpm
Country: · Model: High Speed Air Cooled
High-speed air-cooled induction motors of 1/10–350 hp in the enclosed version and up to 450 hp in the drip-proof version. The speed reaches 30 000 rpm at a supply frequency of up to 2000 Hz, with a voltage of up to 600 V and inverter supply.
- Type
- induction, adjustable (inverter supply)
- Power
- 1/10–350 hp (≈0.075–261 kW) enclosed; 1/10–450 hp (≈0.075–336 kW) drip-proof
- Rotational speed
- up to 30 000 rpm
- Supply frequency
- up to 2000 Hz; V/f characteristic to customer requirements
Technical specifications
| Type | induction, adjustable (inverter supply) |
|---|---|
| Power | 1/10–350 hp (≈0.075–261 kW) enclosed; 1/10–450 hp (≈0.075–336 kW) drip-proof |
| Rotational speed | up to 30 000 rpm |
| Supply frequency | up to 2000 Hz; V/f characteristic to customer requirements |
| Voltage | up to 600 V, 3 phase |
| Frame sizes | Own series 315–532 (small), NEMA 56–449, IEC 90–315, square |
| Enclosure | TEFC, A-TEFC, TENV, DPFC, A-DPFC, ODP; prepared for air purging |
| Bearings | precision ABEC-7, steel/ceramic, oil jet lubrication |
| Insulation | class B, F, H, VPI |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The power of the enclosed versions reaches 261 kW, and of the drip-proof versions up to 336 kW in the same frame size. Enclosed motors come as TEFC with a shaft-mounted fan, A-TEFC with an independent fan for very low or very high speeds, and TENV without ventilation where a fan cannot be fitted. Drip-proof DPFC, A-DPFC and ODP are suitable for indoor use and for outdoor installation with protection from direct weather exposure. There is preparation for purging the housing with clean air. Frame sizes cover the own series 315–532, NEMA 56–449, IEC 90–315 and square housings. The core is M-19 or M-36, for ultra-high speeds the rotor is banded, and the bearings are ABEC-7 with oil jet lubrication. The volt-frequency characteristic is set by the customer.
How to choose
First determine the speed and power. Up to 350 hp the enclosed version is sufficient, and up to 450 hp in the same frame size the drip-proof version is needed. A-TEFC is used for operation at very low or very high speeds, and TENV where a fan cannot be fitted. For speeds above 30 000 rpm up to 40 000 see Precision (Spindle) at 750 hp, and for constant torque in the 2000:1 range the SS-100 series.
Request a price and lead time
High Speed Air Cooled — High-Speed Air-Cooled Induction Motors (TEFC, TENV, DPFC, ODP) up to 450 hp, up to 30 000 rpm. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the maximum speed of High Speed Air Cooled?
Up to 30 000 rpm at a supply frequency of up to 2000 Hz.
What is the power of the enclosed and drip-proof versions?
Enclosed ones have from 1/10 to 350 hp (up to 261 kW), drip-proof ones from 1/10 to 450 hp (up to 336 kW).
How does TEFC differ from A-TEFC?
In TEFC the fan sits on the shaft, while in A-TEFC it is independent and suits very low or very high speeds.
Which frame sizes are available?
Own series 315–532, NEMA 56–449, IEC 90–315 and square housings.
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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.