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Kyn-27 630-4000A 12kV 24kV IEC Standard Withdrawable Cabinet Design MVSG Switchgear
| Serial No. | Item | Unit | Data | |
|---|---|---|---|---|
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Main busbar rated current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 / 4000 | |
| 4 | Branch busbar rated current | A | 630 / 1250 / 1600 / 2000 / 2500 / 3150 / 4000 | |
| 5 | Rated insulation levels | Power frequency withstand voltage (1min) | kV | Phases/Earth: 42; Isolating distance: 48 |
| Lighting impulse withstand voltage | Phases/Earth: 75(95); Isolating distance: 85(110) | |||
| 6 | Rated short-time withstand current | kA | 25 / 31.5 / 40 | |
| 7 | Rated duration of short current | s | 4 | |
| 8 | Rated peak withstand current | kA | 63 / 80 / 100 | |
| 11 | Internal Arc | kA/s | 25/1 31.5/1 40/1 | |
| 12 | Degree of protection (Enclosure/Compartments) | - | IP4X / IP2X | |
| 14 | Loss of service continuity | - | LSC2B | |