D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 493
D90
Plus
Line Distance Protection System
Chapter 9: Equipment manager
Equipment man ager
A program for equipment monitoring can result in extended equipment life, improved
system reliability, and increased equipment availability. Effective equipment monitoring
allows maintenance to be targeted towards the equipment with the greatest need.
Overview of equipment manager
The D90
Plus
equipment manager has six functions according to the specific equipment
sub-system.
• Breaker arcing (supported in D90
Plus
)
•Breaker timing
• Coil signature
• Breaker insulation
• Breaker auxiliaries
• Battery monitor (supported in D90
Plus
)
NOTE:
Only the battery monitor and breaker arcing features are supported in the current version
of the D90
Plus
.