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KYN28 indoor metal-clad withdrawable switchgear is a complete power distribution device designed for 3.6~24KV, 3 phase AC 50Hz single bus sectionalized systems. It is primarily utilized for power transmission of middle/small generators in power plants, power receiving, and transmission for substations in power distribution. It is also suitable for power systems in factories, mines, and enterprises, as well as starting large high-voltage motors to control, protect, and monitor the system.
For convenience in installation and maintenance, the switchgear is equipped with a special current transformer, enabling front-end cubicle inspection and maintenance, supporting wall-mounting requirements effectively.
| No. | Items | Unit | Parameters |
|---|---|---|---|
| 1 | Rated voltage | kV | 12 |
| 2 | Lightning impulse withstand voltage (full wave) | kV | 75 |
| 3 | Rated frequency | Hz | 50 |
| 4 | Rated current of main bus | A | 1250, 1600, 2000, 2500, 3150, 4000 |
| 5 | 4s thermal stability current (effective valve) | kA | 20, 25, 31.5, 40, 50 |
| 6 | Rated dynamic stability current (effective valve) | kA | 40, 50, 80, 100, 125 |
| 7 | Level of protection | IP | Chamber with housing IP4X, IP2X for open door |
| 8 | External dimension (W×H×D) | mm | 800×1500×2300 / 1000×1600×2300 |












