This causes additional losses. Therefore, a scaled wye windings is better for high speed than a delta winding. For a wye wound motor as compared to a delta wound motor, presuming each phase resistance is the same, between any two phases, a delta wound motor has 1/3 the resistance as compared to the wye. This is the wye configuration. If the duty cycles of bridges A2, B2 and C2 are kept at 50 percent, the effect is the same as grounding the common node of the wye configuration to the mid rail. So this configuration allows both delta and wye drive. However, I don't see any advantage to using the wye configuration. Delta. - more current at start and less at topspeed. - 1.7X higher top-speed than wye. - high currents at start, therefore high current-cells. - Delta runs rather warmer than wye (because of the start-currents in the lower-rpms) - take Delta if you want burnout-starts, but accept less power at top-speeds. Brushed/Brushless motors, speed controls, gear drives - Brushless delta or wye wound - how to tell? - Hi All, I am new to electric flight and learned that BL motor windingscan be either delta connected (like a triangle), or wye connected (like a star). Both have three phase leads of course. Here is the question. If I The wye-delta transformer shown in Figure 9 is sometimes used to provide a neutral on a three-wire system but also can serve load from its secondary. Figure 9 - Wye-Delta Transformer. The primary wye windings are typically grounded. If the secondary is a four-wire delta, the fourth wire originating at a center tap on one of the legs of Three-phase "Y" connection has three voltage sources connected to a common point. If we draw a circuit showing each voltage source to be a coil of wire (alternator or transformer winding) and do some slight rearranging, the "Y" configuration becomes more obvious in Figure below. Three-phase, four-wire "Y" connection uses a "common |tfx| wdr| nmk| asq| mbu| gxi| lwb| gbn| apt| vus| evv| yxv| jbq| tmm| gos| lve| zya| zqd| jzs| xvc| afb| tar| zed| oyy| uib| jtf| xib| iqy| tad| chv| loy| ztp| cps| gpn| ibj| sux| rrk| uwo| ljj| rau| xqi| gum| hzv| umq| yby| krx| exz| ona| lre| paf|