ERFA Industries Group
ERFA Industries Group Xian ERFA Switchgear under ERFA Industries Group
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| Item | Unit | Data | |||
| Rated voltage | kV | 12 | 17.5 | 24 | |
| Rated insulation level | 1min power frequency withstand voltage | kV | 42 | 50 | 65 |
| Rated lighting impulse withstand voltage | kV | 75 | 95 | 125 | |
| Rated frequency | Hz | 50 | 50 | 50 | |
| Rated current | A | 630, 1250, 1600, | 630, 1250, 1600, | 630, 1250, 1600, | |
| 2000, 2500, 3150 | 2000, 2500, 3150 | ||||
| Rated short-time withstands current(RMS) | kA | 16, 20, 25, 31.5, 40 | 20, 25, 31.5 | 20, 25, 31.5 | |
| Rated active on-load breaking current | kA | 40, 50, 63, 80, 100 | 50, 63, 80 | 50, 63, 80 | |
| Rated withstands current (peak) | kA | 16, 20, 25, 31.5, 40 | 20, 25, 31.5 | 20, 25, 31.5 | |
| Rated short-time breaking current | kA | 40, 50, 63, 80, 100 | 50, 63, 80 | 50, 63, 80 | |
| Rated short-time continuous time | s | 4 | |||
| Rated operation sequence | O-0.3s-CO-180s-CO | ||||
| Mechanical life | Times | M2 | |||
| Rated operation power supply voltage | V | AC220/DC220 | |||
| Full breaking time | Ms | ≤70 | |||