Power System Transients MCQ

Power System Transients MCQ Questions.

The power system transient voltage is best defined as

The power system transient voltage is best defined as:

1. A transient voltage is a temporary unwanted voltage
2. A transient voltage is a desired voltage
3. A transient voltage is good for system stability
4. All of above

Correct answer: 1. A transient voltage is a temporary unwanted voltage

A lightning transient belongs to which class of transients

A lightning transient belongs to which class of transients:

1. Impulsive transient
2. Oscillatory transient

Correct answer: 1. Impulse transient

Impulsive transients are best described as a sudden transient. The lightning transient is an example of impulse transient.

Transient voltages typically last for

Transient voltages typically last for:

1. 10 seconds to 1 minute
2. 1 to 10 seconds
3. Few milliseconds to seconds
4. A microsecond to several milliseconds

Correct answer: 4. A microsecond to several milliseconds

Which of the following can be a potential transient source

Which of the following can be a potential transient source:

1. Capacitor Switching
2. Electrostatic discharge
3. Faulty wiring or circuit breaker operation
4. All of these

Correct answer: 4. All of these

If the peak voltage of transient exceeds the rated threshold of the component which of the following failure is more likely to happen

If the peak voltage of transient exceeds the rated threshold of the component which of the following failure is more likely to happen:

1. Latent failure
2. Chronic degradation
3. Catastrophic failure
4. Intermittent interruption

Correct answer: 3. Catastrophic failure

If the peak voltage of transient exceeds the rated threshold of the component it is very likely that Catastrophic failure will occur.