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Explain the polarity test of a transformer. Why is it necessary?
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Draw a circuit diagram for polarity test on a single-phase transformer.

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Explain the procedure and readings obtained in the short circuit test in a transformer.
Answer : The short-circuit test in a transformer is performed to determine the transformer's impedance and to calculate its copper losses (the losses due to the resistance of the windings). ... assessing the efficiency of the transformer and for designing protection systems like fuses and circuit breakers....

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Explain the procedure and readings obtained in the open circuit test in a transformer.

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Why is ADC necessary?
Answer : An **Analog-to-Digital Converter (ADC)** is necessary because many modern electronic systems, such as computers, microcontrollers, and digital devices, work with **digital signals** (i ... which works with discrete numbers), enabling modern electronics to interact with real-world physical phenomena....

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Draw the setup of the short circuit test in a transformer.

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Draw the setup of the Open circuit test in a transformer.

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Draw a neat experimental setup to conduct OC test on a single-phase transformer.

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Explain the working principle of an auditory brainstem response (ABR) test.

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Does a higher dielectric constant mean higher polarity?

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what is boucholz relay and the significance of it in to the transformer?

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List different types of faults occured on a power system. Draw necessary sketches (any four)

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Calculate the voltage necessary and current flowing through a dielectric heating system given specific parameters.

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Explain the working principle of a Moving Iron (MI) instrument. How does it differ from a Moving Coil (MC) instrument in terms of construction, operation, and applications?
Answer : **Working Principle of Moving Iron (MI) Instrument:** A Moving Iron (MI) instrument works on the principle of electromagnetic attraction. When current flows through a coil, it creates a magnetic field. This ... galvanometers and ammeters. Let me know if you'd like me to add or tweak anything!...

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What is the effect of polarity and dielectric constant?

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What is the relationship between dielectric constant and polarity?

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What is the difference between dielectric and polarity?

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State the necessity of extension of Ammeter using shunt with mathematical derivation if necessary.

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State the procedure for testing of earth pit resistance with necessary diagrams.

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What are the necessary conditions for applying superposition theorem?

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What is the necessary condition for superposition theorem to be applicable in any linear active and bilateral network?

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List any two direct methods of level measurement. Explain Hydrostatic method of level measurement. Give one advantage and one disadvantage of it.

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State the function of strain gauge. Give its types and explain the working of any one type of it.

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Derive the torque equation of 3 φ I.M. under running condition.k) Explain production of R.M.F. in 3-phase I.M. when 3 φ supply is fed to it. Draw its phasor diagram.

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What is meant by insulation voltage in cables? explain it?

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Explain the working principle of a linear variable differential transformer (LVDT).

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Explain the working principle of a planar transformer.

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Explain the working principle of a capacitor voltage transformer (CVT).

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Explain the working principle of a voltage regulating transformer.

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Explain the principle of operation of a transformer.

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Explain the working principle of a step-up transformer.

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Explain with a circuit diagram the use of a potential transformer to measure 33kV.

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

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