| 摘要 |
<p>The invention relates to a sense indicator, used for determining the rotation sense at a three-phased electric motor. According to the invention, the said device consists of two electro-insulating disks (1), spaced apart from one another and provided on the circular profile, in axial direction, with some holes wherein there are introduced some copper bars (2) with round section, these exceeding the exterior sides of the disks (1) and being short-circuited, in one side and another, by a copper conductor (3), soldered to each of the tin bars (2), the obtained assembly being directly placed on an axle (4) provided, at one of the extremities, with a gripping handle (5), on the same there being provided a disk (6) with two slots (f), placed diametrically opposed, among which there may be noticed the displacement of a disk (7) integral with the test rotor and marked with a spiral made of a red tape (8), stuck on the surface of the disk (7).</p> |
