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A three-phase AC induction motor is a constant-speed motor as a DC shunt motor. But the speed of the DC shunt motor can be changed smoothly simply using rheostats. This maintains the speed regulation and efficiency of the DC shunt motor. But in the case of 3-phase induction motors very difficult to control speed smoothly. […]
Reading Induction Motor Nameplate sometimes very difficult and challenging because the nameplates Often get dirty, painted, and rusted as they get old. So reading motor information becomes frustrating. You will need motor information for installation of VFD, starter design, power factor correction, connecting to load In this article, we will discuss each parameter mentioned on […]
Induction motor is mostly used motor in the industry as well as in domestic application because it’s a simple design, reliable operation, rugged construction, and simple control gear for starting, speed control, and three phase induction motor braking like plugging, dynamic and regenerative braking. The most simple method to stop the motor is to disconnect the […]
There is a wide range of applications of induction motor in Industry as well as in daily life. because of its simple design, rugged construction, and reliable operation. induction motors have easy operation and simple maintenance, low initial cost, high efficiency, and availability of different starters. For starting loads such as small refrigerating machines operating at […]
VFD is a short form of a variable frequency drive also called Frequency converters, which has undergone extremely rapid changes, largely as a result of the development of microprocessor and semiconductor devices and their reduction in prices. However, the basic working principles of frequency converters remain the same. Other names of VFD are variable speed […]
Why single-phase induction motor is not self-starting? Single-phase induction motor Starting winding to make self starting A single phase induction motor is very similar to a three phase squirrel cage induction motor except for single-phase motor, not self-starting. It has (i) a squirrel-cage rotor as to a 3-phase motor and (ii) a single-phase winding on the stator Unlike a 3-phase induction […]
Winding insulation resistance checking of three-phase / 1 phase Motor The motor is mostly used machine to drive loads in the industry, for pumping, elevators, conveyor belts. so its reliability must be maintained, for long life of motor its periodic inspection must be carried out without fail. one of the most important point of periodic checking […]
