Difference between DOL, star delta, vfd and soft starter: The difference between DOL- direct online starter ,star delta, vfd, and soft starter is explained below with operation diagram and their uses in different applications. DOL-Direct on line Starter: here the starting current will be 6 times of full load current. A bimetallic thermal overload relay…
A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive. More about VFD check here: variable frequency drive How to wire a VFD…
Generally we all are know 3 phase induction motors are widely used in industrial applications. because induction motor are having simple construction , less maintenance low cost compared to other motors. three-phase AC motor uses 3 section ower provide (3 pH 220v, 380v, 400v, 415v, 480v etc.), however in some actual applications, we’ve got single…
Electrical Mastar Welcome to Electrical Mastar open and free electrical engineering study site.The Electrical Mastar website is here to offer tips and also help you to learn more about basic things in electrical engineering. These website is fully covered by almost all electrical oriented topics. Motor Generator Transformer Battery & Inverter Switchgear Solar Energy Power plants Lighting…
A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, micro drive, and inverter. Frequency (or hertz) is directly related to…
Other Quantities of electrical engineering There are some other quantities in Electrical engineering, they are categorized below, 1. Resistance 2. Capacitance 3. Inductance 4. Impedance 5.Admittance Resistance: The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor. The inverse quantity is electrical conductance, and…