MS24571J
TABLE III. Detail rupture current performance.
Test Condition |
System |
Voltage before fault |
Calibrated fault current (amperes) |
Transient voltage after fault current interruption |
Open circuit voltage |
|
L-N |
400 Hz 115/200 volts |
120 ± 5 |
6000 amperes during first cycle of fault current decreasing to 3600 amperes within .05 second after initiation |
120 ± 5 |
|
|
L-L |
400 Hz 115/200 volts |
200 ± 8 |
4200 amperes during first cycle of fault current decreasing to 2500 amperes within .05 second after initiation |
200 ± 8 |
|
28 volts dc |
30 ± 2 |
6000 amperes in .01 to .03 second after initiation |
28 volts within .002 second after interruption 50 volts max. |
30 ± 2 |
TABLE IV. Coordination test pairs.
Lower rating (amperes) |
Higher rating (amperes) |
2 � |
5 |
5 |
10 |
7 � |
15 |
10 |
20 |
15 |
35 |
4
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