Power in parallel Circuits

Power dissipated by each individual resistance is simply added to find the total power dissipated by the series circuit. This same procedure also applies to parallel circuits. If there are five resistive branches in a parallel circuit and each was dissipated 1 watt of power, the total power...

Series and parallel resistance circuit :explanation

The familiarity of the few circuit building blocks is important in  understanding complex circuits. In this post I will explain the most important ideas in  DC circuits. From my previous posts I discussed about the Ohms law . This is a continuation of the post about  simple direct...

PUP Privatization: PUPcet 2011-2012 PUP iapply application to entrance exam

PUP Privatization: PUPcet 2011-2012 PUP iapply application to entrance ex...

What are Motor controls and how they work

Motor controls a quick summary       Motor controls are those devices that operate electric motor particularly, those high powered electric motors used to operate machines like electric drilling machines, wood lathe machine, electric bending machine and those other...

A review Complex number

Complex number review     Complex number are usually discussed in the first part of advanced mathematics and here is a quick review about it. Consider the equation it has has NO SOLUTION in real number system. But in eighteenth century mathematician invented a  ...

How are coils connected in an alternator ?

Alternator coil connections   There are two ways of connecting the coils of the three phase AC generators  or alternator in a load. These are the wye or the star connection and the delta connection. Generally, generators are wye connected ( earth wire) but loads can be either delta...

Transformer operation and construction

Transformer: Basic operation and construction   Transformer is an electrical device that converts voltage from one value to another that is, either from high voltage to lower voltage which is termed step- down transformer, or from lower voltage to higher voltage which is termed step up transformer.   The...

ENGINEERING SOLUTIONS

ENGINEERING SOLUTIONSI came across this blog just recently and I find this one very informative.This blog provides fresh graduates specially mechanical engineering, find a job in well reputed company . Tips and guidance published here will surely educate you in dealing with job intervi...

Polyphase system: How Three phase sytem works?

Three Phase system    A three phase circuit is energized by three alternating emf's of the same frequency and differing in time phase by 120 .The emfs are generated in three sets of armature coils in an ac generator. These three sets are 120 degree apart on the generator armature....

Introduction to Ohm's law

                                                    What is Ohm's Law ? In 1826 Georg Simon Ohm discovered that for metallic conductors there is substantially constant...

Generators in parallel

Why generators are in parallel? here are some of the summarized  reasons: 1. Continuity of the service 2. Efficiency 3. maintenance and repair 4. Addition to plant ( provision or future expansion) . Efficiency In an electrical power generating system  the load fluctuates, usually...

Introduction to DC Generator

GENERATOR is machine that converts mechanical energy to electrical energy. DC generator or direct current generator generates a voltage when speed and flux are met.This machine is called a unidirectional (dynamo).It consists of the same basic elements as a simple AC generator like the multi-turn...