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Electrical Engineering - Transformer Performance Analysis Quiz

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Electrical Engineering - Transformer Performance Analysis Quiz

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Questions and Answers

What is the purpose of knowing the voltage rise in a transformer?

To ensure that winding insulation can withstand the increased voltage.

How is the voltage regulation control equipment chosen in a transformer?

Based on the type of automatic voltage regulation control equipment.

How does saturation affect the results in the EMF method for voltage regulation?

Saturation is neglected in the EMF method, leading to higher computed voltage regulation values.

Why can't large machines be operated in parallel?

It is not possible due to difficulties in achieving stable operation. Signup and view all the answers

What is another name for the EMF method in transformer performance analysis?

Synchronous Impedance Method Signup and view all the answers

What is the significance of knowing the voltage rise in a transformer?

Winding insulation should be able to withstand the increased voltage. Signup and view all the answers

How does the type of automatic voltage regulation control equipment used in a transformer impact its performance?

It affects the stability under steady state short circuit conditions. Signup and view all the answers

Why is it not possible to operate large machines in parallel?

Small machines can be loaded directly, but large machines cannot be operated in parallel. Signup and view all the answers

What is the difference between the 2 EMF method and the Synchronous Impedance method in transformer analysis?

The 2 EMF method gives inconsistent results, while the Synchronous Impedance method neglects saturation. Signup and view all the answers

Why is the 2 EMF method sometimes referred to as the pessimistic method?

It computes voltage regulation values that are much higher than the actual value. Signup and view all the answers