Distributions systems represent an important parts in the electrical grids and for this reasons the electrical generation & distribution companies delicate approximately 40% of the capital investment for distribution systems while the remaining is given to generation and transmission (40% generation & 20% transmission). The power distribution system is particularly important for an electrical utility… Read More »
Below document covers the uninterruptible power supply UPS system installation, testing and commissioning method statement. Before starting the UPS installation work, user manual must be thoroughly read and understood. Applicable safety instructions and warnings must be discussed and appropriate measures must be taken. It is strictly recommended that trained service engineer from manufacturer or authorised… Read More »
Very basic question which an electrical student or professional may be asked is what is electric current and electric charge. The electric current is actually the flow of electric charge from one point to other point of the conductor or wire or cable. In electric circuits this charge is often carried by moving electrons in a… Read More »
In a paramagnetic material the magnetization of the material is (approximately) directly proportional to an applied magnetic field. However, if the material is heated, this proportionality is reduced; for a fixed value of the field, the magnetization is (approximately) inversely proportional to temperature. This fact is encapsulated by Curie’s law: where is the resulting magnetisation… Read More »
We all have heard about the binary numbers and binary coded decimals and we also know that these are used inside the computers for the computation and processing of our commands. In digital electronics study students mostly as this question that What is BCD? In computer & electronics Binary Coded Decimal or BCD is a class of… Read More »
An ideal transformer is a theoretical, linear transformer that is lossless and perfectly coupled; that is, there are no energy losses and flux is completely confined within the magnetic core. Perfect coupling implies infinitely high core magnetic permeability and winding inductance and zero net magneto-motive force. Ideal transformer equations By Faraday’s law of induction: (1) Where… Read More »