Initially, let us know what an autotransformer is, an autotransformer is the electric type of transformer that works only with one winding. The word “Auto” indicates that only one coil functions independently. Here, the sections that are present in the same winding operate as the transformer’s secondary and primary windings. Whereas, the general kind of transformer has individual secondary and primary windings. And then the invention of the autotransformer … [Read more...]
What is Centrifugal Switch : Functionality & Its Testing
In general, centrifugal switches are mainly used in single-phase and split-phase induction motors. The patent rights on this device were gained by Royal Lee during 1920. This stood as the foundation for the development of Lee Engineering Company. Before the development of centrifugal switches, the location of motors used to be inside the motor frame where it directed to the collection of a huge amount of grease, oil particles, dust which reduced the … [Read more...]
What is Rogowski Coil : Theory & Its Working
The evolution of the Rogowski coil happened with simple solenoids and these coils were in usage from the period 1912. The initial usage of the coil was very limited because of its minimal output voltage which was not enough to lead the measuring equipment. Whereas with the enhancement measurement sensitivity, the implementation of coil enhanced and those were in use in many applications across many domains. A tool that operates similar to the coil as … [Read more...]
What is Distance Relay : Theory & Its Characteristics
During the period 1809, a scientist named Samuel Thomas invented the first electrolytic relay which was a part of his electrochemical telegraph development. Later on, Joseph Henry, an American inventor asserted to have a relay invention in the year 1835 which was the improvised version of the electrical telegraph that was invented in 1831. But the relay which was currently in use today was designed by Samuel Morse in the year 1840. The mechanism of this … [Read more...]
What is Mutual Inductance : Derivation & Its Applications
In the domain of electronics and electromagnetism, inductance is the crucial concept where it is the inclination of a conductor to contradict the current flow. The current flow generates a magnetic field across the conductor. The field strength is based on the current’s magnitude and goes as per current changes. The word inductance was coined by Oliver Heaviside in the year 1886. In the name of Heinrich Lenz, the symbol of inductance was provided. The … [Read more...]
What is HRC Fuse : Construction & Its Working
Fuse is the most widely used terminology in the field of electronics and electrical engineering. This is the type of protective device which functions to safeguard electric circuits from high and over current ranges. These days, there exist numerous fuse designs where each type has its own features and characteristics based on the usage of the application. The history of fuse was initiated with the concept that Breguet suggested the implementation of … [Read more...]
What is Inductive Reactance : Derivation & Its Example
Once the equivalent values of DC & AC voltages are applied to the circuit which includes an inductor connected in series through the load. So the current supply in a DC circuit is more as compared to AC circuits due to the induced voltage that opposes the flow of current within the DC circuit once the flow of current reaches its highest value. When it approaches a fixed state value, then there is no more inductive effect. In AC circuits, the flow of … [Read more...]
What is an Isolation Amplifier : Features & Its Applications
An isolation amplifier is fundamentally used to reduce the common voltage between the source side and the power load side. They provide electrical isolation and acts as electrical safety barriers. They are also used to protect the operators from leakage currents. These are some of the most frequently used devices. They work fundamentally on the operational amplifier principle (OP-AMP). Due to their versatility, they find numerous applications in both … [Read more...]
What is Conservator Tank : Working Principle & Its Classification
The conservator tank is one of the most important parts of the operation of the transformer. Its main role is not only to circulate and maintain the oil level in the transformer but also plays an important role in the protection of the transformer against earth faults, heating and maintains the insulation of the windings. It is placed on the top of the transformer tank and has its own capacity based on the rating of the transformer. Generally, it is placed … [Read more...]
What is a Stagger Tuned Amplifier : Working & Its Applications
The basic and important theory that modern electronics are completely based on is Amplification. And the device which is utilized for the purpose of amplification is Amplifier. In the concept of amplifiers, the first practical device that was used is a triode vacuum tube in the year 1906 and this invention led to the discovery of amplifiers in 1912. And now, there are many classifications in amplifiers such as single tuned, double-tuned, and stagger tuned … [Read more...]
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