Silent Sentinel Ch 1 Flashcards
1
Q
Desirable characteristics of protective Relay System
A
Reliability, Selectivity, Speed
2
Q
High Speed Relay
A
3-5 Cycle close/operation time
3
Q
Why are Protective Relay Zones are overlapped
A
To avoid leaving unprotected areas
4
Q
By convention, drawings show relays in what state?
A
Unenergized state
5
Q
52Y
A
Circuit Breaker anti-pumping auxiliary
