Tag
#protection
2 topics across all disciplines.
Motors and starters — starting current, protection and what actually kills them
Why an induction motor draws six times its rated current on starting, what each starting method trades away, and why nearly every motor failure ends as overheated insulation.
Switchgear, transformers and protection testing
Why secondary injection proves the relay and primary injection proves everything else, what a reversed CT does to differential and directional protection, why an open CT secondary is dangerous, what breaker timing feeds into, and why phase rotation is checked before anything is paralleled.