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What is an energy conversion device?
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Describe with sketch the working of Variable frequency drive as an energy conservation device.
Answer : A **Variable Frequency Drive (VFD)** is an energy conservation device used to control the speed and torque of an electric motor by adjusting the frequency and voltage supplied ... controlling motor speed, VFDs significantly contribute to reducing energy consumption and improving system efficiency....

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

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Draw a schematic arrangement of a hydroelectric power station and describe the energy conversion process of a hydro power plant.

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List the benefits of maximum demand controller as energy conserving device.

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Is SCR an active device?
Answer : Yes, an SCR (Silicon Controlled Rectifier) is considered an active device. This is because it requires an external signal (typically a gate pulse) to control its operation. When the gate is ... resistors, capacitors, or inductors), SCRs can control power flow in a circuit, making them active....

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What is the difference between an MCB and an RCD (Residual Current Device)?

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How do you calculate the efficiency of an electrical device?

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How does an intelligent electronic device (IED) work in substation automation?

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Explain the working principle of an ESD protection device.

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There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

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What are the principles of digital to analog conversion?

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What is the concept of “phosphor conversion” in LEDs?

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What is the formula for the conversion of galvanometer into voltmeter?

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How does a flash ADC achieve high-speed conversion?

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How does a quadrature mixer work in frequency conversion?

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How does a parametric down-converter work in frequency conversion?

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How does a magnetic core transformer work in power conversion?

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How does a parametric mixer work in frequency conversion?

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How does a matrix converter work in AC-AC power conversion?

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Explain the concept of power conversion in power electronics.

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Explain the concept of resolver-to-digital conversion.

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Explain the working principle of a direct conversion receiver.

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