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WhatsApp: +86 18203695377WEBConstruction of Commutator. The commutator is a split ring of larger size with large number of splits (commutator segments). It is called a mechanical rectifier in generator and an inverter in motor. The connections to the commutator depends upon the type of armature windings. These are made of hard copper so as to withstand the brush forces ...
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WhatsApp: +86 18203695377WEBThis set of DC Machines Multiple Choice Questions Answers (MCQs) focuses on "Brushes and Commutator Assembly – 1". armature in DC machines is always placed on rotor because _______. a) Otherwise commutation will not be possible. b) Otherwise there will not be any induced emf. c) Otherwise current will not flow. d) Can .
WhatsApp: +86 18203695377WEBJul 20, 2012 · If the sparks go all the way around the copper strips, also called the commutator, the armature has shorted. That means the insulation between the wires and the iron has broken down in the inside of the armature. Some times it can be as simple as a short between the bars, the copper strips, of the commutator. With the tool unpluged, .
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WhatsApp: +86 18203695377WEBJan 21, 2018 · Abstract. Although DC commutator machines are nowadays largely being replaced by rotating field machines, they remain an interesting study object. The basic principles for energy conversion are similar to those of other machines. Moreover, their excellent control properties ( speed control, torque control) are the inspiration for .
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