winding<\/a> and the electromagnetic properties that are eventually manifested are only related to the connected conductors and not to the order of connection. In other words, as long as the connection is the same as the conductor in the slot, it does not matter which one is connected first and which one is connected second, the final embodiment of electromagnetic performance is basically the same, only the end is different, there may be slightly different end leakage resistance and DC resistance. Specific connection principles are as follows:<\/p>\n\n\n\n\u2460 Principle of maximum potential superposition<\/p>\n\n\n\n
Under a certain number of conductors, the synthesized fundamental (working wave) potential and magnetic potential are the largest. Specifically, the maximum potential and magnetic potential of the fundamental wave synthesized by two coil sides of a single coil; the maximum potential and magnetic potential of the fundamental wave synthesized by each coil in series and each coil group in series.<\/p>\n\n\n\n
\u2461 Principle of minimum non-operating harmonics<\/p>\n\n\n\n
The non-working harmonic component of the potential and magnetic potential generated by connecting the windings should be as small as possible. For the winding with sine wave, the potential and magnetic potential should be as close to sine as possible; for the winding with square wave, some harmonics may also be working waves, and these harmonics will also produce effective torque, which can be unrestricted, but some harmonics are non-working waves, and these non-working harmonics should be minimized when the winding is connected.<\/p>\n\n\n\n
\u2462 Symmetry principle<\/p>\n\n\n\n
The spatial arrangement of multi-phase windings should be symmetrical; the potential and magnetic potential generated by each phase winding should be symmetrical; the number of slots occupied by each phase winding and the number of conductors connected in series should be equal, and the resistance and reactance of each phase should be balanced. A necessary condition to satisfy the symmetry principle is that the total number of slots of the armature must be divisible by the number of phases, i.e. Z1\/m=integer.<\/p>\n\n\n\n
\u2463 Principle of processability<\/p>\n\n\n\n
Since the potential and magnetic potential generated by the winding are only related to the connected conductors, and not the connection order, which conductor is connected first and which conductor is connected later depends on the process and economy, with the principle of easy and convenient process, troubleshooting and maintenance.<\/p>\n\n\n\n
\u2464 Principle of economy<\/p>\n\n\n\n
Since the conductors can be connected in any order, the winding should be connected in such a way that the end of the winding is as short as possible to save the amount of copper used at the end and reduce the copper consumption at the end.<\/p>\n\n\n\n
Some of the above principles may be contradictory to each other, and may not even be satisfied at the same time under certain constraints, which requires a trade-off according to the specific situation and the main factors.<\/p>\n\n\n\n
The design and manufacture of AC windings requires consideration of a variety of factors, such as motor power, voltage, frequency, etc., to meet the operating requirements of the motor. When designing AC windings, it is necessary to select the appropriate wire material and insulation material, and design the appropriate winding structure and wiring method to ensure the efficiency and performance of the motor according to the operating conditions of the motor.<\/p>\n","protected":false},"excerpt":{"rendered":"
The potential and magnetic potential generated by the AC winding and the final electromagnetic performance are only related to the connected conductors, but not to the order of connection. In other words, as long as the conductors are connected in the same slot, it does not matter which one is connected first and which one is connected second, the final reflected electromagnetic performance is basically the same, only the ends are different, there may be slightly different end leakage resistance and DC resistance.<\/p>\n","protected":false},"author":1,"featured_media":422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[10,13,16],"class_list":["post-420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical-wire-machine","tag-electrical-wire","tag-power-exhibition","tag-transformer-windings"],"yoast_head":"\n
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