General Electric (Pg.1-7) Flashcards
1
Power system can be thought of as a chain
2
Transmission lines being exposed to the natural elements are much more vulnerable
3
Protective relays are placed on the system to reduce the number of alternate links to a minimum.
4
Primary relaying
5
A device which when energized by sustainable currents, voltages, or both responds to the magnitude and relationships of those currents and voltages to indicate or isolate an abnormal operating condition.
6
Classified as plunger, hinge armature, induction disk, and induction cup.
7
The induction disk.
8
Induction cup?
9
Characteristic curve useful for determining the relay setting that will provide the necessary speed, selectivity and sensitivity to protect the power system and coordinate with other protective devices.