Page 177 - Electrician - TT (Volume 2)
P. 177

ELECTRICIAN - CITS                                                                                                                                                                               ELECTRICIAN - CITS





               Fig 3                                           Fig 4















               Fig 5                                       Fig 6























            Method of placing coils in a basket or distributed
            winding


           Objectives: At the end of this lesson you shall be able to:
           •  state the various methods employed to prepare gang or group of coils
           •  explain the method of placing coils in the single layer basket winding
           •  explain the method of placing coils in a double layer basket winding.


           The procedure outlined below is common for single or three-phase distributed winding. However this type of
           basket (distributed) winding is very popular in three phase motors.
           The coils can be wound using a single former and then they can be interconnected by coil connections as shown
           in Fig 1. Most of the three-phase motors with the exception of very large ones with formed windings, use coils
           wound in groups as shown in Fig 2.

               Fig 1                                              Fig 2


















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                                    CITS : Power - Electrician & Wireman - Lesson 86-92                                                                   CITS : Power - Electrician & Wireman - Lesson 86-92
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