KYN61-40.5 Ac Metal-enclosed Switchgear Equipment（Abbreviation as Switchgear）, three-phase AC 50Hz, rated voltage of 40.5kV single busbar and indoor distribution equipment single busbar system, suitable for power plant, substation and power distribution to industrial and mining enterprises, railway transportation, high-rise building as the acceptance and distribution of electric energy. And the implementation of control, protection and monitoring function of circuit. The utility model has the advantages of flexible operation, reliable electrical performance, long service life, convenient maintenance and the like. Can be equipped with ABB company VD4 series truck. The switch cabinet structure is strong, the main wiring scheme can reach more than 49 kinds, and can meet the needs of users. Switchgear is in accordance with the requirements of GB3906 and DL/T 404, and has passed all types of electric power equipment and instrument quality inspection and testing center.
| Project | Unit | Data | ||
| Rated current Ur | kV | 40.5 | ||
| Rated frequency fr | Hz | 50 | ||
| Rated current Ir | A | 630,1250,1600，2000 | ||
| Rated insulation level | Rated current Ir | Isolating distance | ||
| 1min Line frequency withstand voltage Ud | kV | 95 | 115 | |
| Lightning impulse withstand voltage Up | kV | 185 | 215 | |
| Rated short-time tolerant current Ik(4s) | kA | 25 | 31.5 | |
| Rated short circuit breaking current Isc(valid value) | kA | 25 | 31.5 | |
| Rated Peak-Peak tolerant current Ip | kA | 63 | 80 | |
| Rated short-circuit current (peak) | kA | 63 | 80 | |
| Rated current of busbar | A | 630,1250,1600,2000 | ||
| Protection degree | Shell for IP4X | |||
| Every room and circuit breaker room door is open for IP2X | ||||
