Electric Portal is about electrical concepts and other electrical machines like motor transformer,dol starter,star delta starter,auto transformer starter and much more
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 […]
The star and delta connections are two common types of connections used in the winding of three-phase motor. For star connection or delta connection of winding, six wires or leads of the motor winding must be accessible. 3-phase motors are commonly used in industrial applications due to their efficiency and power output. They operate using […]
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 motor, a […]
The three-phase induction motor is one of the most widely used motors in various industrial applications. Its robust construction, simplicity, and versatile nature make it a preferred choice for powering machinery and equipment. In this article, we will delve into the working principle, construction, advantages, disadvantages, and applications of the three-phase induction motor. Introduction to […]
1 phase induction motors are widely used in many applications due to their simplicity, cost-effectiveness, and simple operation. They are commonly used where a three-phase power supply is not available or practical. In this article, we will explore the construction, working principle and application. Working Principle of 1 Phase Induction Motor The working principle of […]
A Slip Ring Induction Motor is a type of asynchronous induction motor. Slip ring induction motors rotor is wound identically to the stator and is connected through rotating electrical contacts known as slip rings. These slip rings let the induction motor have an external resistor connected in series with the rotor winding. The fundamental purpose […]
Winding insulation resistance checking of three-phase / single phase Motor The motor is mostly used machine to drive loads in the industry, for pumping, elevators, and conveyor belts. so its reliability must be maintained, for the long life of the motor its periodic inspection must be carried out without fail. one of the most important […]
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 […]
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 […]
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 […]
