Insulation Resistance or IR Test is carried out by maintenance engineers to ensure the healthiness of the overall insulation system of electrical equipment. It reflects the presence or absence of …
Before going to the operation and characteristics of split-phase induction motor we should first understand why single phase induction motor is not self-starting. To make a single-phase induction motor self-starting, …
The dc generators and dc motors have the same general construction. In fact, when the machine is being assembled, the workmen usually do not know whether it is a dc …
DC motor fault zone analysis is a vital plan of any DC motor maintenance program. Several troubles may arise in a DC motor. A few of them are discussed below: Failure …
The losses in a dc machine (generator or motor) may be divided into three classes viz Copper losses Iron or core losses and Mechanical losses. All these losses appear as heat …
Single-phase motors are the most familiar of all-electric motors because they are extensively used in home appliances, shops, offices etc. It is true that single-phase motors are a less efficient …
Speed control of dc motor is achieved using different methods. There are three types of dc motors. For each of them, there are different methods of speed control. Each of …
Although a far greater percentage of electric motors in service are ac motors, the dc motor is of considerable industrial importance. The principal advantage of a dc motor is that its speed …
The different methods of speed control in DC shunt motors are explained below, Flux Control Method Armature Control Method Voltage Control Method Multiple Voltage Control Ward Leonard System Related Topic …
