WebHowever, two sides of a coil are not always corresponding points under the adjacent poles and hence the coil has a span or pitch less than 180 degrees. This is known as a short pitch coil. The pitch factor, K c is the ratio of the voltage generated in the short pitch coil to the voltage generated in the full pitch coil. Since EMF generated in ... WebFeb 24, 2012 · There are different types of armature winding used in alternator. The windings can be classified as Single phase and poly phase armature winding. …
Alternator Multiple Choice Questions and Answers
WebIn an alternator short pitch coils are used A. To reduce the stray losses B. To reduce the size of the machine C. To provide accurate phase difference of 1200between D. To reduce the … Webmodelling of the magnetic field using the For example, Fig. 2 shows the place- EMWorks software has been used. ment of a prototype of an alternator induc- Initial calculations of the magnetic cir- tor on a bicycle frame and an MFV instead cuit made it possible to determine the main of a disc brake attached to the rear wheel. graphic invitation card design
Multiple Choice Question (MCQ) of Alternator and Synchronous …
Web40. In an alternator, use of short pitch coil of 160° will indicate the absence of following harmonic. a) Third b) Fifth c) Seventh d) Ninth. Ans: (d) 41. The maximum current that can be supplied by an alternator depends on. a) Number of poles b) Speed of the exciter c) Exciter current d) Strength of the magnetic field. Ans: (d) 42. WebJul 27, 2024 · In unbalanced winding, the each pole contains unequal number of coils in different phases. But there should be equal number of coils in each phase. Full pitch and short pitch winding. When the two coil sides forming a complete coil of a winding are 180 electrical degrees apart, the winding is called as full pitch winding. WebAug 23, 2016 · A short pitched coil is also known as Chorded Coil. Chording Angle ξ is defined as the angle by which the coil span departs from a pole pitch i.e. 180 degree. … graphic ip