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What are even and odd harmonics?

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Description :

What are the main causes of harmonics?

Answer :

Harmonic is a non linear load because linear load voltage deviated due to connection of some electrinie device such as converter,inverter

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Description :

Why harmonics are generated in electrical system?

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What is mitigation of harmonics?

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What is current harmonics?

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Why do non linear loads cause harmonics?

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Description :

Even at no-load, a transformer draws current from the mains. Why?

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Description :

Slot harmonics are reduced in induction motors by using (A) fractional-pitch windings (B) fractional-slot windings (C) integral-slot windings (D) distributed windings

Answer :

Slot harmonics are reduced in induction motors by using fractional-slot windings

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Description :

Explain the effect of Harmonics on the Transformer.

Answer :

Effect of Harmonics on the Transformer:  1. Core loss: Harmonic voltage increases the hysteresis and eddy current losses in the lamination. The amount of the core loss depends on ... small core vibrations.  5. Saturation problem: Sometimes additional harmonic voltage causes core saturation.

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Answer :

The main reason for generation of harmonics in a transformer could be saturation of core.

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Answer :

Harmonics in transformer result in increased core losses, increased I2R losses, and magnetic interference with communication circuits.

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