The speed of a dc motor is given by where V = applied voltage, Ia = armature current Ra = armature resistance, Φ = flux per pole, K = contant From the above equation, three methods of speed controls are possible By varying...
Archive - October 2021
There are three types of characteristics. Open circuit characteristics (OCC) or magnetisation cháracteristics (E2 versus If). Internal characteristics or total characteristics (E versus Ia). External characteristics or voltage...
DC generators can be classified according to their methods of field excitation. There are two types of DC generators on the basis of excitation. Separately excited DC generators Self excited DC generators Separately excited DC...
DC Generator : An electrical generator is a rotating machine which converts mechanical energy into electrical energy. It is shown in figure. This energy conversion is based on the principle of electromagnetic induction. According...
Like a four wheel vehicle, a two wheel vehicle will also be subjected to gyroscopic and centrifugal couple when it takes a turn on a curved path. Let us consider a two wheel vehicle, (say, a scooter or a motor bicycle) taking a...
