Describe with neat sketch working of hysteresis motor.

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Describe with neat sketch the working of shaded pole induction motor.

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Describe with neat sketch the construction and working principle of MOSFET.

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Describe the working of synchronous reluctance motor with the help of neat diagram.

Describe the working of synchronous reluctance motor with the help of neat diagram.
Answer : ### Working of Synchronous Reluctance Motor (SynRM) A **Synchronous Reluctance Motor (SynRM)** is a type of electric motor that operates on the principle of reluctance, similar to a ... certain applications, though it does have some limitations in terms of starting torque and power density....

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Describe with neat sketch the constructional details of IGBT.

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Describe with neat sketch the installation of plate earthing.

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Describe with neat sketch any one type of earthing system.

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Describe the operation of a current differential relay with a neat sketch.

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Describe the process of ultrasonic welding with a neat sketch and mention its applications.

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Describe with neat sketch the arc extinction in SF6 circuit breakers.

Describe with neat sketch the arc extinction in SF6 circuit breakers.
Answer : **Arc Extinction in SF6 Circuit Breakers:** SF6 (Sulfur Hexafluoride) circuit breakers are widely used for switching high-voltage electrical circuits. They are known for their ability to extinguish the electric arc that forms when the breaker contacts ... ---+ +--------+ | |...

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Describe the vapour compression refrigeration system with a neat sketch.

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Describe with sketch the working of Variable frequency drive as an energy conservation device.

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Explain with a neat sketch the construction and working of Pelton turbine used in hydro power plant.

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What is the necessity of synchroscope in power system? Explain with neat sketch the working of synchroscope.

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State the necessity of synchroscope and with neat sketch explain its working.

State the necessity of synchroscope and with neat sketch explain its working.
Answer : ### Necessity of a Synchroscope A **synchroscope** is an important device used to measure and indicate the **synchronization** of the speed, frequency, and phase of an incoming alternator (generator) ... generator is in sync with the grid, and the circuit breaker can be closed to connect them....

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With the neat sketch explain working of Dynamometer type wattmeter.

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With neat sketch of PMMC instrument explain its working briefly.

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Illustrate with neat sketch the working of automatic power factor corrector as an energy conservation device.

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With neat sketch, explain working of directional overcurrent relay.

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Explain the working principle of transformer dimmers with the help of a neat sketch.

Explain the working principle of transformer dimmers with the help of a neat sketch.
Answer : A **transformer dimmer** is an electronic device used to control the brightness of light bulbs or the power supplied to electrical appliances. The basic principle of a transformer dimmer involves ... - The dimmer adjusts the voltage delivered to the load, controlling the brightness of the light....

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With neat sketch state the working principle of Star-Delta starter.

With neat sketch state the working principle of Star-Delta starter.
Answer : ### Working Principle of Star-Delta Starter A **Star-Delta starter** is used to reduce the starting current and prevent damage to the motor when starting a 3-phase induction motor. The key ... All Motors**: This method is suitable for motors that are rated for such reduced starting conditions....

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Explain working of vertical break isolator with neat sketch.

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Explain the working of a drinking water cooler with a neat sketch.

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Describe the working of an HRC fuse with a neat diagram.

Describe the working of an HRC fuse with a neat diagram.
Answer : ### Working of an HRC Fuse: An **HRC (High Rupturing Capacity) fuse** is a type of fuse that is used for protecting electrical circuits from overcurrent conditions. It is designed ... is typically made of ceramic or similar heat-resistant materials to withstand high temperatures during the fault....

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Explain working of autotransformer starter for a 3 phase induction motor with neat diagram.

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Explain the function of different parts of a typical nuclear power plant with a neat sketch.

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With neat sketch explain four modes of operation of a TRIAC.

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Explain the principle of operation of Doppler type ultrasonic flow meter with a neat labeled sketch.

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State the possible location of mounting a projector in flood lighting with a neat sketch.

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Explain the different types of DC motors with a neat sketch.

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Explain with neat sketch basic trip circuit of protection relaying.

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Explain with neat sketch: (i) Earth resistance measurement using earth tester (ii) High resistance measurement using megger.

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Explain the shackle type insulator with neat sketch.

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Explain with a neat sketch the Pilot wire protection scheme applied to transmission line.

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Explain the differential protection scheme for busbars with a neat sketch.

Explain the differential protection scheme for busbars with a neat sketch.
Answer : **Differential Protection Scheme for Busbars:** Differential protection is a popular protection scheme used for busbars in electrical power systems to detect faults (such as short circuits) ... faults are quickly cleared, maintaining the overall stability and reliability of the power system....

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Explain with a neat sketch fault bus protection scheme.

Explain with a neat sketch fault bus protection scheme.
Answer : **Fault Bus Protection Scheme** A fault bus protection scheme is used to detect and isolate faults occurring on a busbar in electrical power systems. A busbar is a central connection ... widespread system disturbances and ensures continuity in the operation of other parts of the electrical network....

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Explain electric arc welding with a neat sketch.

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Draw a neat sketch of Rotameter and explain its working principle.

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Describe with neat circuit diagram the measurement procedure of earth resistance for an installation.

Describe with neat circuit diagram the measurement procedure of earth resistance for an installation.
Answer : To measure the earth resistance for an installation, we typically use the **Wheatstone Bridge method** or the **Fall-of-Potential method**. However, one of the most common methods is the **Fall-of-Potential method** (also called the " ... | [P1]---->----[A]---(Earth Electrode)----[B]----...

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Describe the construction of an SF6 circuit breaker with a neat diagram.

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Describe the construction and operation of the Buchholz relay with a neat labeled diagram.

Describe the construction and operation of the Buchholz relay with a neat labeled diagram.
Answer : ### Buchholz Relay: Construction and Operation The **Buchholz relay** is a protective device used in **oil-immersed transformers** to detect faults such as **internal short circuits** or **overheating**. ... me know if you'd like more details or a specific part of the explanation to be clarified!...

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Describe emergency lighting system with neat diagram.

Describe emergency lighting system with neat diagram.
Answer : ### Emergency Lighting System An **emergency lighting system** is designed to provide illumination in the event of a power failure or when the normal lighting system is not functioning. These ... buildings of all sizes, especially in places like schools, hospitals, hotels, and office buildings....

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Describe spot welding and projection welding with neat sketches.

Describe spot welding and projection welding with neat sketches.
Answer : ### Spot Welding **Spot welding** is a type of resistance welding used to join two or more metal sheets by applying heat and pressure to a small, localized area. It works ... processes are efficient for mass production and can be automated, especially in industries like automotive manufacturing....

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State and explain working of phase sequence indicator with suitable sketch.

State and explain working of phase sequence indicator with suitable sketch.
Answer : A **Phase Sequence Indicator (PSI)** is a device used to determine the sequence of phases in a three-phase electrical system. The phase sequence indicates the order in which the three-phase supply ... system operation. Would you like a diagram or further details on any part of the explanation?...

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Explain the working of single phase electronic energy meter with sketch.

Explain the working of single phase electronic energy meter with sketch.
Answer : A **single-phase electronic energy meter** is used to measure the energy consumption in a single-phase electrical system. These meters are more accurate and reliable compared to the older ... mechanical ones. They provide real-time energy consumption data and are essential for accurate billing....

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Explain with a sketch protection of 3-phase induction motor during single phasing.

Explain with a sketch protection of 3-phase induction motor during single phasing.
Answer : ### Protection of a 3-Phase Induction Motor During Single Phasing **Single Phasing** is a condition where one of the three phases (L1, L2, L3) of a 3-phase system fails or gets ... serious harm can occur. This protects the motor windings and ensures the motor runs safely under normal conditions....

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Describe with layout the working of a solar Photo Voltaic (PV) power plant.

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Describe with block diagram; working of signal generator and state at least two applications of signal generator.

Describe with block diagram; working of signal generator and state at least two applications of signal generator.
Answer : ### Signal Generator: Working and Applications A **signal generator** is an electronic device used to create electrical signals, typically in the form of oscillating waveforms (like sine, square, ... fields, such as radar systems, signal analysis, and in the development of new electronic products....

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Describe with block diagram working of single phase electronic energy meter.

Describe with block diagram working of single phase electronic energy meter.
Answer : ### Single Phase Electronic Energy Meter A single-phase electronic energy meter is an advanced device that measures the electrical energy consumed in a single-phase AC (alternating current) ... voltage and current data through electronic circuits, and it provides real-time, accurate readings....

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