What is the purpose of a power system load flow analysis?
Load flow analysis determines voltage levels, power flows, and system losses to ensure efficient operation.
Which instrument is primarily used to measure power factor in a power system?
Power factor meters are specialized tools designed to monitor the efficiency of power usage in an AC system.
Why is impedance important in power systems?
Impedance affects voltage drop and current flow, influencing the design and protection of electrical systems.
Which method is commonly used to locate faults in underground cables?
Time domain reflectometry (TDR) sends pulses and measures reflections to locate faults precisely.
What causes voltage sag in a power system?
Voltage sags are often caused by large motor startups or short-duration faults that reduce voltage momentarily.
Why is power factor correction important?
Correcting power factor reduces losses, improves efficiency, and avoids utility penalties.
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Which of the following is a symptom of a phase imbalance?
Phase imbalance can result in overheating of motors, equipment failure, and poor power quality.
What device is used to analyze harmonics in a power system?
Harmonics analyzers identify waveform distortion caused by non-linear loads, helping prevent equipment damage.
What is the most probable effect of a failed capacitor in a power factor correction bank?
A failed capacitor can lead to decreased system efficiency and increased power bills due to poor power factor.