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
Design a combinational logic circuit to convert XS3BCD code in to the  standard 8421 BCD code.

Q. Explain Hexadecimal Number System? A Hexadecimal Number System: uses base 16 includes only the digits 0 through 9 and the letters A, B, C, D, E, and F In the Hexade

hint on clamping as a project topic

What is XMS? XMS: The memory system is splits in three major parts as: system area, XMS (extended memory system) and TPA (transient program area). The kind of microprocessor in

Q. In a GLC parallel circuit excited by a current source i(t), for G = 0.5S, L = 3H, and C = 0.5 F, determine i(t) if the inductor current iL(t) = 12e -0.5t .

Advanatages of GPS system These systems have been developed to mimic the knowledge and expertise of an expert in a particular field. For instance: -  prospecting for minera

Charge density I n a semiconductor

find the resultant of two forces 20N and25N acting at an angle 60 degree each other

The mechanical power produced at the armature of a motor is: P = T a . (power is in watts if torque is N.m and    in rad/sec). Some of this will be lost due to friction and

A 1000-hp, 2300-V, wye-connected, three-phase, 60-Hz, 20-pole synchronous motor, for which cylindrical-rotor theory can be used and all losses can be neglected, has a synchronous r