Rated maximum voltage | 24 kV | 24 kV | |
Rated basic impulse level, P>P | 145 kV | 145 kV | |
Rated basic impulse level, P>E | 125 kV | 125 kV | |
Power frequency withstand, Dry | 65 kV | 65 kV | |
Power frequency withstand, Wet | 79 kV | 79 kV | |
Rated continuous current | 630 A | 1250 A | |
Rated fault making current | 50 kA | 63 kA | |
Rated fault breaking current | 20 kA | 25 kA | |
Cable charging current | 30 A | 35 A | |
Line charging current | 10 A | 25 A | |
Rated fault duration time | 4 s | 4 s | |
Contact resistance, VCB | < 35 µΩ | < 35 µΩ | |
Contact resistance,ABI | < 65 µΩ | < 65 µΩ | |
Network frequency | 50/60 Hz | 50/60 Hz | |
Phase CT type 1 | 200/1 | 400/1 | 600/1 |
Core balance CT (12 kV) | 20/1 | | |
Design min mechanical/electrical | 20.000 | 20.000 | |
Mass (weight) without air break switch - kg (lbs) | 90 (198) | 90 (198) | |
Mass (weight) with air break switch - kg (lbs) | 120 (264) | 120 (264) | |
Ambient temperature C (F) | -45 - +70 | -45 - +70 | |
Humidity | 100% at 25 C | 100% at 25 C | |
Bushing type | Epoxy core with silicone surface |
Creep distance to group | 800 mm | 800 mm | |
Max installation altitude at rated BIL | 3000 M | 3000 M | |
Rated operation voltage | 48 VDC | 24 VDC | |
Rated power | 40 W | 40 W | |
Design specification | IEC 62271-111 |
Marking specification | IEEE std C37.60 |
Operation sequence, no charge | 25 ms trip - 50 ms close - 25 ms trip |