What is a key result of RMS voltage variation exceeding one minute?

When RMS (Root Mean Square) voltage variation exceeds one minute, it signifies a long-duration voltage variation. This type of voltage change typically implies that the electrical system is experiencing sustained deviations from the nominal voltage level, which can lead to a range of issues for both end-users and the overall power system.

Long-duration voltage variation can impact equipment performance, leading to overheating, increased losses, or even damage to sensitive electronics over time. It can also impact the efficiency of motors and other devices that depend on consistent voltage levels for optimal operation. In comparison, temporary fluctuations are typically shorter in duration and may not have the same level of detrimental effects. Thus, recognizing the distinction between the duration of voltage variations is crucial for effective monitoring and management of electrical systems.