Well, you might be well-versed with the word “Vibration”. Mostly we all know what vibration in mobile phones is where it vibrates our mobile when there is a notification or when we receive any call. This is the only scenario that gets into our thought about vibration, but there are many cases where vibration pays attention such as in the compressor rotation in refrigerators, to run the washing machine vibrator. Extending this concept, we need to be clear … [Read more...]
Basics of Electricals
What is Ferranti Effect : Circuit Diagram, Advantages & Disadvantages
Ferranti Effect is one of the undesirable phenomena that happens in power systems. Fundamentally it explains the rise in receiving end voltage as compared to sending end voltage due to line capacitance and inductance for a long transmission line i.e. the transmission line with length greater than 160 km. Conceptualized by Sir S. Z. Ferranti in the year 1887, this effect explained the impact of line capacitance on receiving end voltage under no load or … [Read more...]
What is an Isolator : Types and Its Applications
An isolator is an electrical switching device that disconnects the equipment or electrical lines. It is generally an offline disconnector. It can be operated manually or automatically. Isolate generally means to disconnect so its name is an isolator. It ensures the total disconnection of the circuit such that no chance of any energizes part in the system. It is operated after the use of circuit breaker CB. There is always an ambiguity between isolator and … [Read more...]
Universal Motor : Working and its Types
We know that there are different kinds of electric motors available in the market such as single phase, self-starting induction, slip ring, etc. This article discusses a unique kind of electric motor. Imagine an electric motor that works on both AC and DC. This motor is named as a universal motor. As the name suggests, the working ability of this motor mainly depends on AC & DC with related characteristics. This motor also includes a high starting … [Read more...]
What is a DC Series Generator – Load Test, Characteristics & Applications
An electrical generator is a kind of machine that can able to convert the input mechanical energy to electrical energy. It was invented in 1831 by Michael Faraday who worked on several theories of magnetic induction. Finally, it was made to work by the introduction of Electromagnetic Induction. This theory is the basis for the working of an electrical generator. Moreover, this electrical energy generated is used by electrical motors. However, these motors … [Read more...]
What is a Rotor – Types, Working, & Applications
The rotor was invented in the early 1800s and it was discovered by the naval officers R. P. C. Spengler and Theo A. van Hengel. Earlier it was used in Rotor dynamics for the encryption of files especially used in cryptography. The invention of this type is also supported by Gustaf de Laval who is working for the development of turbine machinery. This type was supposed to be called Laval type as per his name Gustaf de Laval. In this article, we shall … [Read more...]
DC Shunt Generator – Working, Load Test & Magnetisation Characteristics
Early 1830 Faraday worked on the process that is related to electromagnetic fields. He discovered a theory that is basic behind the working of a generator. Later several discoveries have been done that led to the invention of some other generators, those are the shunt, series, and compound type. However, all these types work on the same principle I,e the Faraday's law of electromagnetic induction. So, the invention of the magnetic laws by Faraday behind … [Read more...]
How to Make a DC Motor – How a Generator is Made from it
The electric motors first developed were of electrostatic in nature. This type of motor is first invented by Scott scientist Andrew Gordon and Benjamin Franklin in the early 1740s. Later many investigations have been done to improve the performance of the electric motor. In 1821 Faraday invented the rotator motion by the induction principle. Later this rotator motion is considered to be the principle of electric motors. In this article, we shall discuss … [Read more...]
DC Series Motor – Operation and Characteristics
In the early 1870s, the electric motors used in traction did not give profitable results. But the invention of the series motor had brought much convenience in this field. Due to its performance that it can produce high starting torque. This advantage of producing high starting torque has also used the railways where the locomotives can be easily moved forward. In time, a process has also been discovered to use the technology regenerating power by the use … [Read more...]
Direct and Indirect Methods of Testing DC Machines
In the early 1880s Oslen proposed to test the machine to invent some new and improvements in machines. In his proposal, he highlighted the difficulties he faced running any machine. Accordingly, he also proposed certain measures to be taken to avoid such difficulties. He suggested testing the machines to improve their performance and working difficulties. So, this is the reason why a machine is tested by different methods to know its behavior. There are … [Read more...]