NPTEL Smart Grid Basics to Advanced Technologies Week 4 Assignment Answers 2024
1. Number of samples transferred by PMU in one second
- 1200-1400
- 3600-4200
- 2400-2800
- 1500-1800
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2. The data obtained from DPRs are generally __________ than from the other data resources.
- less accurate
- More accurate
- More detailed
- None of these
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3. In context with DFT, phasor estimation does not involve estimating which of the following?
- the instantaneous angle of the signal
- the RMS value of the signal
- the peak value of the signal
- All of these
Answer :-
4. Which of the following is not true about SCADA?
- Measures magnitude and phase angle
- No time synchronization
- Local monitoring and control
- 1 sample every 2-4 seconds
Answer :-
5. What are the disadvantages of traditional relays?
- Aging production facilities
- Discontinued components and parts
- Shortage of manufacturing and testing technicians
- All of these
Answer :-
6. Phasor estimation based on least square error method can be applied for signals with decaying __________ component.
- AC
- DC
- AC and DC
- None of the above
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7. The _________ word of a file standard of synchrophasor standard identifies the data originator uniquely
- First
- Second
- Third
- Fourth and fifth
Answer :-
8. In digital relay, relay dependability is the ratio of
- (Number of correct trips)/(Number of desired trips+Number of incorrect trips)
- (Number of correct trips)/(Number of desired trips)
- (Number of correct trips)/(Total number of trips)
- None of the above
Answer :-
9. A 60 HZ voltage signal is sampled at 3000 HZ than the phase angle between the two success sample
- 7.2 degrees
- 9.2 degrees
- 6.2 degrees
- 8.2 degrees
Answer :-
10. Voltage ripple based passive islanding detection technique is applicable to microgrid with
- Diesel engine based DGs
- Micro hydro turbine DGs
- Photo voltaic DGs
- Any of the above
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