This invention relates generally to the field of apparatus for an Electrical Phase Reversing Switch. Moreover it pertains specifically to such apparatus for Reversing electrical motor directions
In view of the limitations now present in the prior art, the present invention provides a new and useful Electrical Phase Reversing Switch which is simpler in construction, more universally usable and more versatile in operation than known apparatus of this kind.
The purpose of the present invention is to provide a new Electrical Phase Reversing Switch device that has many novel features not offered by the prior art apparatus that result in a new Electrical Phase Reversing Switch device which is not apparent, obvious, or suggested, either directly or indirectly by any of the prior art apparatus
Electrical Phase Reversing Switch
The present invention is a box comprised of contacts that can be manually switched to allow the electrical three-phase motor to be reversed. The device is connected to the bottom of a conventional motor starter. When necessary, a contact bar is pushed (or a cylinder is turned) in one direction or the other to allow phases to be reversed. By doing this, it makes it possible for an apparatus to be reversed in its rotation for temporary maintenance. The device has a bar or a cylinder with six input contacts named I1, I2, I3, I4, I5 and I6 and another six output contacts named O1, O2, O3, O4, O5, O. When contacts I1, O1; I3, O3 and I5, O5 are in use, it is normal rotation and when contacts I2, O2; I4, O6 andI6, O4 are in use, the rotation is in opposite direction. The initial power leads (L1, L2, and L3) are tied into the top of the apparatus. The connections T1, T2, and T3 are tied to the bottom of apparatus. Initial the power leads are connected to I1, I3 and I5 and when are switching these contacts move to I2, I4, and I.
The foregoing has outlined, in general, the physical aspects of the invention and is to serve as an aid to better understanding the more complete detailed description, which is to follow. In reference to such, there is to be a clear understanding that the present invention is not limited to the method or detail of construction, fabrication, material, or application of use described and illustrated herein. Any other variation of fabrication, use, or application should be considered apparent as an alternative embodiment of the present invention.
The following drawings further describe by illustration the advantages and objects of the present invention. Each drawing is referenced by corresponding figure reference characters within the “DETAILED DESCRIPTION OF THE INVENTION” section to follow.
Referring now descriptively to the drawings, the attached figures illustrate an Electrical Phase Reversing Switch
FIGS. 1 illustrates an Electrical Phase Reversing Switch according to the present invention, this device is reversing the electrical motor directions.
The present invention is a complete new device used in electrical field as an electrical motor change direction. The principle is using for Three phase Electrical Motor and consist in switching two phases of initial power to reverse the direction. We know that conventional three phase power is notate with symbols L1, L2, L3, and are call initial power leads. Electrical Three Phase Motor has three input connections which are symbolized with T1, T2, and T3. When we want to run a motor we tide L1 with T1, L2 with T2 and L3 with T3 and if we want to change the direction, we leave L1 with T1 but switch L2 to T3 and L3 to T2.
Following this principle we developed a complete new device which is mounting between initial power leads and electrical motor connections.
The apparatus (
In the Sliding bar (2) are fit up with two groups of connections.
First group (
Second group contain three connections too:
The first connections group is illustrate in Electrical Schema (
To change a group to the other is necessary to push by hand the Sliding bar (2) in the Exterior case (1) until is indexing to the new position.
It will also be understood that, in addition to Electrical Phase Reversing Switch, the device can be used to switch the Input power for DC Electrical Motors.
It will also be understood that, in addition to The Linear Motion of the Sliding bar, the device can be used with a Rotating Motion of a Twisting bar.
It is further intended that any other embodiments of the present invention that result from any changes in application or method of use or operation, method of manufacture, shape, size, or material which are not specified within the detailed written description or illustrations contained herein yet are considered apparent or obvious to one skilled in the art are within the scope of the present invention.
Number | Date | Country | |
---|---|---|---|
60542601 | Feb 2004 | US |