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Buchholz Relay in Transformers Quiz

Authored by Xin Liu

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Professional Development

Used 1+ times

Buchholz Relay in Transformers Quiz
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of a Buchholz relay in a transformer?

To increase the voltage

To cool the transformer

To protect from internal faults

To enhance power efficiency

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In what type of transformers is a Buchholz relay generally used?

Air-cooled transformers

Oil immersed transformers

Dry-type transformers

Small transformers under 500 kVA

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the excess heat in a transformer lead to in the context of a Buchholz relay?

Cooling of the transformer

Production of gas

Increase in voltage

Decrease in current

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to gas bubbles generated inside a transformer?

They cool the transformer

They flow downward

They flow upward towards the conservator

They remain static

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when gas displaces oil in the Buchholz relay?

The transformer shuts down

The upper float closes the mercury switch

The oil level rises

The relay resets

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the lower float in a Buchholz relay during major faults?

It activates the cooling system

It tilts to close the lower mercury switch

It releases excess gas

It stabilizes the oil level

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of fault generates a large amount of gas in a Buchholz relay?

Minor fault

Major fault

Electrical noise

Mechanical fault

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