What term describes the impulses caused by transient events in power systems?

The term that best describes the impulses caused by transient events in power systems is noise. Noise in electrical systems refers to the unwanted disturbances or fluctuations that can occur due to various transient events like switching operations, lightning strikes, or equipment failures. These impulses can lead to voltage spikes or fluctuations that affect the performance and reliability of power systems, thereby necessitating proper analysis and management to ensure system stability and the protection of sensitive equipment.

In contrast, interruptions generally relate to a complete loss of power or service for a defined period, while high-voltage is a descriptor of electrical potential rather than a phenomenon resulting from transient events. A faulty generator, although it can cause disruptions, does not encompass the broader spectrum of transient impulses across the system.