| 摘要 |
<p>The invention relates to a three-phase motor intended to function in connection with a three-phase system (1) and including three winding phases (2u, 2v, 2w) or groups of winding phases to form a wye connection winding (2), the wiring terminals for connection to the neutral point (U2, V2, W2) of the winding phases (2u, 2v, 2w) being accessible outside the winding (2), an electronic switch (4) designed and connected to the neutral terminals (U2, V2, W2) through lugs (U3, V3, W3) in such a way that said neutral terminals can be electrically connected by a power-up action and electrically disconnected by a power-down action, as well as a control circuit (5) designed to control the electronic switch (4) and connected thereto. The integration of both the electronic switch (4) and the control circuit into the terminal box of the three-phase motor enables both the space requirement and the number of electronic components needed as compared with the prior art three-phase motors to be significantly reduced.</p> |
