Power Quality and FACTS Exam Questions

Fluctuations in voltage perceived by a user.

Factors causing temporary voltage drops in a power system.

Reasons leading to voltage fluctuations.

The degree to which power meets the needs of users.

Problems in power supply affecting end-users.

Devices improving power flows and stability.

Earthing a system at one point.

Multiple grounding points.

Distortion in the current due to transformers.

Distortion caused by transformer energization.

Negative impacts of harmonics on motor drives.

Impact of power factor on industrial efficiency in the power quality context.

Uses of Static VAR Compensators.

Thyristor-controlled series capacitor operation.

Devices to regulate voltage and power factor.

Harmonics produced by TCR power compensation.

Working and function of a Static Synchronous Compensator.

Total Harmonic Distortion - a measure of harmonic content.

Standards for voltage and current THD limits as per IEEE 519.

Different methods to reduce harmonic distortion.

Methods to improve power factor without active devices.

Improving power factor and stability with FACTS devices.

A meter accurately measuring non-sinusoidal waveforms.

Device analysis and measures harmonic components.

Graphs used to evaluate power system characteristics.

Graphical tool to categorize flicker effects.

Loads that draw current directly proportional to voltage.

High initial current when a device is energized

Sudden increase in voltage levels.

A filter designed to attenuate specific frequencies.

System used to measure and assess power quality issues.

Devices for measuring power quality parameters.

Characteristics of devices used to measure flicker.

Influence of harmonics on transformer performance.