How to calculate back pitch, front pitch, commentator pitch?, Electrical Engineering

Q. A 6 - pole, DC armature with 36 slots and 2 coil - slides/slot is to be wave wound (double layer). Calculate the back pitch, front - pitch and commentator pitch. How many dummy coils, if any are required? 

Ans. 

Given

                           C = 36

 

                           P = 6

 

                           C = P/2Yc ± 1

 

                           36 = 6/2 Yc ± 1

 

                           36 = 3Yc ± 1

 

   Let                    Y = 12 then

 

                            C = 3 ×12-1

 

                                = 35

 

SO we choose C = 35 which actually 36 coils be accommodate

 

                           Yes = S/P = 36/6 = 6

 

                           YB = 2YCS + 1

 

                          YB = 2 × 6 + 1

 

                          YB = 13

 

                         YF = 2Y - YB = 2 ×12 - 13 = 11

Posted Date: 7/23/2012 1:26:46 AM | Location : United States







Related Discussions:- How to calculate back pitch, front pitch, commentator pitch?, Assignment Help, Ask Question on How to calculate back pitch, front pitch, commentator pitch?, Get Answer, Expert's Help, How to calculate back pitch, front pitch, commentator pitch? Discussions

Write discussion on How to calculate back pitch, front pitch, commentator pitch?
Your posts are moderated
Related Questions
Q.   what is oscilloscope probe compensation and how is it adjusted?  What effects are noted when the compensation is not correctly adjustment? Direct Probe: This probe  is

#questsdfsdfsdfsion..

Aim: The aim of this practical is to work with multiplexed 7-segment displays and implement a counter and display the 7- segment on the PIC trainer. Equipment: PIC

Explain multimeter A multimeter, or universal instrument, may be used to measure voltage, current and resistance.

Q. A 50-kW, 250-V, short-shunt compound generator has the following data: R a = 0.06 , R S = 0.04 , and R f = 125 . Calculate the induced armature voltage at rated load and t

Customer Service Management CRM involves several activities related to planning - both long terms and short terms, measurement and control, improvement and innovation of all a

Explain the Discrete Time Systems? A system operates on an input signal, x[n] and output the results, y[n]. For example, a digital filter (a system) can be represented by the f

Explain different stage in energy audit?

what are the functions of interpolar winding and compensating winding?

When a current is passed through a conductor, a magnetic field is created in its surroundings. We can represent this magnetic field by drawing 'field (or 'flux') lines' with two