A 6-pole, dc machine has a double layer, lap winding in 63 slots. The coils in the machine have one turn each. There are 189 commutator bars. The flux per pole is 0.082 Wb. The rotor speed is 700 rev/min. (a) Find the number for the bottom-layer conductor of coil 1. (b) We can decide to use equalizers on this machine. Why? (c) It is possible to use 21 equalizers on this machine. Why? (d) Find the commutator bar(s) to be connected with the commutator bar 1 to an equalizer. Find the commutator bar(s) that must be connected to equalizer number 5 if 21 equalizers are used and commutator bar 1 is connected to equalizer number 1. (e)Find the dc voltage that is generated in this machine.
A 6-pole, dc machine has a double layer, lap winding in 63 slots. The coils in the machine have one turn each. There are 189 commutator bars. The flux per pole is 0.082 Wb. The rotor speed is 700 rev/min.
(a) Find the number for the bottom-layer conductor of coil 1.
(b) We can decide to use equalizers on this machine. Why?
(c) It is possible to use 21 equalizers on this machine. Why?
(d) Find the commutator bar(s) to be connected with the commutator bar 1 to an equalizer.
Find the commutator bar(s) that must be connected to equalizer number 5 if 21 equalizers are used and commutator bar 1 is connected to equalizer number 1.
(e)Find the dc voltage that is generated in this machine.
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