PMU

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Phasor Measurement Unit Quiz

Test your knowledge on Phasor Measurement Units (PMU) with our comprehensive quiz! Designed for engineers, students, and professionals looking to enhance their understanding of PMU technology.

27 detailed questions
Multiple choice format
Ideal for both beginners and experts

27 Questions7 MinutesCreated by MeasuringWave327

A phasor measurement unit is a device which reports the magnitude and phase angle

True

False

PMU measurements can be used to estimate the frequency and the rate of the change of the frequency (ROCOF)

True

False

PMU measurements allow the differential protection of the high voltage lines with FACTS

True

False

A Phasor Measurement Units (PMU) is a device mostly microprocessor based

True

False

PMU reports only the magnitude of an analog and /or derived phasor with respect to the global time reference, as per the synchro-phasor standards.

True

False

In addition to the problem of the measurement noises which does exist always, the PMU itself also causes a latency derived from number of cycles and processing time.

True

False

Although most of the commercial PMUs use 1-cycle widow, one way to reduce the noise is to use an average value by measuring 2 or 4 cycles.

True

False

To achieve accurate timing signal, we must use internal synchronizing source.

True

False

In case of using internal synchronization, source GPS antenna is not required

True

False

In case of the external timing source, the timing signal is provided to the PMU by means of an external source, which may be local or global, and a distribution infrastructure which is based on broadcast or direct connections.

True

False

To achieve better measurement results in case of using PMU, a fractional cycle window is used.

True

False

If the frequency of the input signal is different from the nominal frequency, a magnitude and angle correction must be applied to account for the frequency deviation.

True

False

It is assumed that the input signal has been filtered according the requirement of the Nyquist criterion for the selected sampling rate.

True

False

. It is possible to achieve a noiseless ROCOF measurement using difference between two consecutive phase angles.

True

False

PMU standard uses UNIX time base with a ‘‘second-of-century’’ (SOC) counter

True

False

In addition to GPS system, synchronizing signals can also be disseminated by terrestrial fiberoptic systems.

True

False

The precision time protocol (PTP) used to synchronize clocks throughout a computer network can achieve clock accuracy in the ms range.

True

False

IIn order to achieve interoperability among PMUs made by different manufacturers, it is essential that all PMUs follow a common standard

True

False

Standards consider a PMU frequency deviation with a range of ±5 Hz from the nominal frequency.

True

False

The easy availability of synchronized measurements using GPS technology and the improvement in communication technology makes it possible to consider true differential protection of transmission lines and cables.

True

False

Phasor Measurement Unit Quiz

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