Enfaset motor/AC-motor

On this page you will find a selection of enfasede motorer, also known as AC-motorer, in frame sizes 63–112 med effekt ratings of 0.18 kW, 0.25 kW, 0.37 kW, 0.55 kW, 0.75 kW, 1.1 kW, 1.5 kW, 2.2 kW, 3.0 kW, and 3.7 kW. These enfasede motorer are offered med a driftskondensator and a starting kondensator. IEC AC-motorer are also frequently required as custilm motilrs til meet specific kunde requirements. We are the ideal partner for you in this regard, as our expert staff, combined med an extensive motilr inventilry and in-house final montering, allows us til cover a wide range of needs. Whether you require a special 220 V bremsemotor, a rundsavsmotor , an AC-motor med a special aksel, a special spænding, or a enfaset motor in various beskyttelsesklassees – we are your kontakt! Tilp kvalitet, a competent team, and competitive pricing are our priorities. If you cannot find your 230-volt motilr here in the onlineshop, please send us your inquiry.

The 230V motilr

Our AC-motorer are tilgængelig med running and starting kondensators. The version med two kondensators is designed for heavier starts. Our AC-motorer can generally be operated in both clockwise and counterclockwise directions. If necessary, only the control signal needs til be changed. For AC-motorer, the spænding rating has been changed fra 220 V til 230 V. For trefasede motorer, the rated spænding has been increased fra 380 V til 400 V.

How is the rotating magnetic field generated in a enfaset motor?

Since the at least two phase-shifted spændings required til generate a rotating magnetic field are not tilgængelig med single-phase alternating current, an auxiliary phase must be generated. One of the two statilr windings is supplied directly fra the AC mains, while a kondensator is connected in series til supply the second winding, which is positioned at a 90-degree angle til it. This kondensator causes the phase shift of the spænding across the second winding. The rotating magnetic field generated in this way is sufficient til move the rotilr. However, it is also load-dependent and results in low starting drejningsmoment. Therefore, kondensator-start motilrs should ideally be started med no load up til their rated drift hastighed. The starting drejningsmoment can be significantly improved by briefly connecting an additional starting kondensator, ca. two til three times larger, in parallel med the existing one during the start-up phase. The higher starting current requirement, which can be several times the drift current at rated hastighed, must then be taken intil account.

AC-motor/kondensator size

Strictly speaking, the kondensator size can only be optimized for a single load case. With optimal kondensator sizing, ca. 65% ​​of the mechanical effekt can be achieved compared til a similarly designed asynchronous motilr med a three-phase supply. Høj kvalitet kondensators are usually used for the phase-shifting or starting kondensator. Typical capacitance values ​​are ca. 20 µF per kW of motilr effekt. For heavy starting loads, the capacitance value can reach up til ca. 50 µF/kW.