Controlled slowing or stopping of a motor and its driven load is as important as starting in many applications like cranes and electric traction. Sometimes electric braking is better than other breaking systems due to its greater economy and absence Read more…
Hi friends, in this article, I am going to discuss about the lux meter woking principle and its application. We have to measure light in many tasks. For this, the Lux meter should be used. To measure the light Read more…
Types of Errors in Transducers The errors in transducers occur because they do not follow, the input-output relationship given by qo = f(qi) The error can be expressed in terms of either input or the output quantity. Four Read more…
There are many ways for measurement of a physical quantity. While selection of transducers, how to select a transducer for a particular application, following points should be kept in the mind. Unfortunately most transducers are not sensitive to just Read more…
Characteristics of Transducers While choosing a transducer for any application the input, transfer and output characteristics of transducers have to be taken into account. Input Characteristics of Transducers Type of Input and Operating Range The foremost consideration for Read more…
When two metals of different work functions are placed together, a voltage is generated at the junction. This generated voltage is proportional to the temperature and this junction is known as Thermocouple. Working Principle of Thermocouple Type Instrument Read more…
The most common schemes employed for the protection of a three-phase generator stator windings from earth faults phase-to-phase faults make use of circulating current principle. In these protection schemes, currents at the two ends of the protected section are Read more…
In this article I am discussing about purpose of neutral wire in 3 phase 4 wire system. After reading this article you will be able to understand some very amazing facts about need of neutral in three phase distribution system. Read more…
A moving coil galvanometer is an easy and sensitive instrument to detect and measure electric current. The working principle of the galvanometer is based upon the fact that when electric current flows in a coil placed in a magnetic Read more…
The Kirchhoff’s Laws are very useful in solving electrical networks which may not be easily solved by Ohm’s Law. In this article, I will describe these laws and will show some of Kirchhoff’s voltage law examples to make these laws Read more…
Hi friends, in this article, I am going to describe the electroplating process steps and hope you will find it very informative and interesting. The electroplating is an art of depositing a superior or more noble metal on a Read more…
A transistor can also act as a switch and can turn ON and OFF power in an electrical load. The action of the transistor, while using a transistor as a switch is explained below: Consider an NPN transistor as shown Read more…
Hi friends, in this article, I am going to describe the linear induction motor working principle. This article will provide you answers of various questions about the LIM. A linear induction motor is a developed version of cylindrical induction Read more…
Hi friends, in this article, I am explaining the stepper motor working principle. It will definitely increase your knowledge about stepper motors, I hope so. The stepper motors convert electrical pulses received by their excitation (control) winding into discrete Read more…
The oceans and rivers cover about 70% of the earth’s surface which receives, store and dissipates the vast amount of thermal energy. Thus they act as huge reservoirs of thermal energy. The temperature gradient across the depth of sea can Read more…
Hi friends, in this article, I am discussing about how geothermal energy works. After reading this post, you will be able to understand the process of making electricity by means of geothermal energy. The geothermal energy in the form Read more…
Hi friends, in this article, I am providing you some basic information about Brushless DC motor. With the help of this information you can easily understand the brushless dc motor working principle. Unlike a conventional dc motor, a brushless Read more…