Main Parts of Motor Motor is an electrical machine that converts electrical energy into mechanical energy. Motors work through the principles of electromagnetism. If you run electricity through a wire, it creates a magnetic field. If you coil the wire around a rod and run electricity through the wire, it creates a magnetic field around…
PREVENTIVE MAINTENANCE Most electrical equipment requires planned inspection and maintenance to keep it in proper working condition. Periodic inspections prevent serious damage to machinery by locating potential trouble areas. Observant personnel will make full use of their senses to diagnose and locate problems in electrical machinery: the sense of smell directs attention to burning insulation;…
AC motors can be categorized into two types: asynchronous motor and synchronous motor. An asynchronous motor is also called as induction motor. The two types are very different from each other. This paper is focused on the differences between an induction motor and a synchronous motor. Difference on Construction Induction motor: the stator winding…
What is Universal Motor A universal motor is a special type of motor which is designed to run on either DC or single phase AC supply. These motors are generally series wound (armature and field winding are in series), and hence produce high starting torque. That is why, universal motors generally comes built into the…
This part is very important to ensure our electric motor installation is done perfectly and running properly.If we wrong setting for voltage value connection for induction motor,it can cause serious damage. But dont worry,this time i explain detail how to determine a motor terminal connection for suitable with our power supply.The key is motor nameplate.We…
Horsepower is a measure of power, and voltage measures the amount of energy carried in a circuit. Current, measured in amps, represents how fast the energy moves through a circuit. For example, you might use horsepower and voltage to find the current in a motor. In order to calculate the current from the horsepower and…
Motor current calculation: The relationship between current (measured in amperes), resistance (measured in ohms) and voltage is found in one of the basic laws of electricity and electronics: Ohm’s Law. Ohm’s Law says that current is directly proportional to voltage and inversely proportional to resistance. This means that, if we know the resistance of a…
RESISTANCE-START INDUCTION- RUN AND CAPACITOR-START INDUCTION-RUN MOTORS Resistance-start induction-run and capacitor-start induction-run motors are very similar in construction. The stator winding of both motors contains both a start winding and a run winding. The start winding is made of smaller wire and placed higher in the metal core material than the run winding. …
Motor operated valve Motor Operated Valve (MOV) is an important item of Plant & Piping system. These valves are generally of large size and are used for different applications such as Pump discharge etc. Motor Operated Valves are often called as On-Off valves as the motors serve the purpose of fully opening or fully closing…
Electrical braking The running motor sahll be stop by either mechanical braking or electrical braking. For smooth operation we need electrical breaking.The electric braking of a DC motor is of three types, (i) Rheostatic or dynamic braking, (ii) Plugging or reverse current braking (iii) Regenerative beaking. (i) Rheostatic or dynamic braking: In case of DC…