Issue:
VR Breaker Time Characteristics.
Product Line:
Metal Clad Switchgear.
Environment:
VR Breaker.
Cause:
Define VR Breaker Time Characteristics.
Resolution:
MAX. TIME FROM ENERGIZING TRIP COIL UNTIL:
| Main Contacts Part | 31-36ms |
| Auxiliary Switch “A” Contacts Open | 27-47ms |
| Auxiliary Switch “B” Contacts Close | 38-48ms |
MAX. TIME FROM ENERGIZING CLOSING COIL UNTIL:
| Main Contacts Complete The Closing | 35-75ms |
| Auxiliary Switch “A” Contacts Close | 38-86ms |
| Auxiliary Switch “B” Contacts Open | 41-87ms |
RATED INTERRUPTING TIME:
| All Breakers | 50ms, 3.00 Cycles |
| PERMISSIBLE TRIPPING DELAY: | 2 Seconds |
| MAX. SPRING CHARGING TIME: | 10 Seconds max |
