Reclose Test Tabulation
A-126 72A-1898 Rev. A 11/01
Monday, November 26, 2001 1:09 pm
C Main Contact Opening Time measured from
Test Initiation
This is the time from test initiation to Main Contact
make (Figure A.149).
D Main Contact Reclosing Time measured from
Test Initiation
This is the time required for the last contact to
close (measured from test initiation).
E Delta Main Contact Reclosing Time within the
Breaker
This is the allowable difference in time for reclose
of all Main Contacts within the breaker.
Figure A.149 Reclose Contact Timing Parameters And Specifications
OCB CONTACT TIMING
RECLOSE OPERATION
Reclose Dead Time Within a Phase
Specifications | Test results | Compare
Maximum 333.0 mS | Phase A 315.6 mS | Pass
Minimum 250.0 | Phase B 315.7 | Pass
| Phase C 316.6 | Pass
Reclose Dead Time Within the Breaker
Specifications | Test results | Compare
| Breaker 315.4 mS | Pass
Main Contact Opening Time Measured From Test Initiation
Specifications | Test results | Travel | Velocity | Compare
Maximum 50.0 mS | CONTACT1 20.1 mS | 0.799 in.| 10.42 f/s| Pass
Minimum 0.0 | CONTACT2 20.3 | 0.824 | 10.42 | Pass
| CONTACT3 19.7 | 0.750 | 10.00 | Pass
A
B
C
Main Contact Reclosing Time Measured From Test Initiation
Specifications | Test results | Travel | Velocity | Compare
Maximum 333.0 mS | CONTACT1 335.7 mS | 0.735 in.| 11.67 f/s| Fail
Minimum 217.0 | CONTACT2 336.0 | 0.689 | 12.81 | Fail
| CONTACT3 336.3 | 0.637 | 13.75 | Fail
Delta Main Contact Reclosing Time Within the Breaker
Specifications | Test results | Compare
Maximum 4.0 mS | Breaker 0.6 mS | Pass
D
E
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