Podcast
Questions and Answers
What is the consequence of having the zero sequence impedance as ∞ during line to line faults?
What is the consequence of having the zero sequence impedance as ∞ during line to line faults?
- The fault current will be minimum
- The fault current will be infinite
- The fault current will be zero (correct)
- The fault current will be maximum
If the neutral is not grounded during a single line to ground fault, what will be the effect on the zero sequence impedance?
If the neutral is not grounded during a single line to ground fault, what will be the effect on the zero sequence impedance?
- The zero sequence impedance will be maximum
- The zero sequence impedance will remain the same
- The zero sequence impedance will become infinite (correct)
- The zero sequence impedance will become zero
What is the result of zero sequence currents when the neutral in a Y connection is absent?
What is the result of zero sequence currents when the neutral in a Y connection is absent?
- Minimum
- Infinite
- Zero
- Maximum (correct)
When there is no neutral, what is the value of Z0?
When there is no neutral, what is the value of Z0?
How does the value of zero sequence current compare to the current in the neutral wire?
How does the value of zero sequence current compare to the current in the neutral wire?
What components make up a balanced three-phase system?
What components make up a balanced three-phase system?
What is the sum of negative and zero sequence currents in case of an LLG fault?
What is the sum of negative and zero sequence currents in case of an LLG fault?
In which of the following connections can zero sequence currents flow?
In which of the following connections can zero sequence currents flow?
What is the primary purpose of using series reactors in power systems?
What is the primary purpose of using series reactors in power systems?
Among the listed options, what factor(s) determine the magnitude of fault current?
Among the listed options, what factor(s) determine the magnitude of fault current?
Which type of fault is the most commonly observed in power systems?
Which type of fault is the most commonly observed in power systems?
During a single line to ground fault where the fault occurs in phase A, what are the terminal conditions?
During a single line to ground fault where the fault occurs in phase A, what are the terminal conditions?
