surge undervoltage
1Uninterruptible power supply — A small free standing UPS …
2Liste der Schaltzeichen (Elektrik/Elektronik) — In diesem Artikel oder Abschnitt fehlen folgende wichtige Informationen: Es fehlen u. a. Schaltzeichen und graphischen Symbole für Akkumulatoren und Primärzellen Koppelstufen Wählerelemente Fernsprecher Sende und Empfangseinrichtunge …
3Northeast blackout of 2003 — States and provinces that experienced the blackout; not all areas within these political boundaries were affected. The Northeast blackout of 2003 was a widespread power outage that occurred throughout parts of the Northeastern and Midwestern… …
4Northeast Blackout of 2003 — The Northeast Blackout of 2003 was a massive widespread power outage that occurred throughout parts of the Northeastern and Midwestern United States, and Ontario, Canada on Thursday, August 14, 2003, at approximately 4:15 pm EDT (20:15 UTC), with …
5Power quality — In its broadest sense, power quality is a set of boundaries that allows electrical systems to function in their intended manner without significant loss of performance or life. The term is used to describe electric power that drives an electrical …
