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What is Centrifugal Switch : Functionality & Its Testing

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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

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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

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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

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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

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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

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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

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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

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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 Flyback Transformer : Circuit Diagram and Its Working

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The 20th century has seen many advancements in technology by inventing many new devices. This was also the era where researchers were making a shift from analog technology to digital technology.  The size of many devices began to shrink from meters to millimeters and nano. One such development can be seen in the way monitor screens have been evolved. Displays have come a long way from being a bulky monochrome to slim UHD. One of the devices that played a … [Read more...]

What is a Thermoelectric Generator : Working Principle & Its Applications

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The thermoelectric generator is a device, where electric energy is produced directly from heat energy. They are also called Seebeck generators since they used the Seebeck effect to produce power. In conventional power plants, like thermal power plants, nuclear power plants,  fuel is used to heat the water. Generally, coal is burnt in that process. After the water starts boiling, and converted into steam, at high pressure, this steam is used to rotate the … [Read more...]