General
KYN28A-12 switchgear is a complete set of power distribution equipment for three-phase AC 50/60Hz, rated voltage 3.6～12kV single bus and single bus section system.
It is mainly used in power plants, substations, transformation and distribution centers of industrial and mining enterprises, and large high-voltage motor starting equipment, etc., for receiving and distributing electric energy, and for controlling, protecting and monitoring circuits.
Features
1. Safe and reliable: the cabinet structure is made of aluminum-zinc-coated sheets and assembled by multiple bendings. It is fully armored and fully enclosed. The compartments in the cabinet are independent compartments separated from each other; perfect "five-proof" interlocking function , Reliably prevent misoperation and erroneous entry into the live interval; fast closing grounding switch to achieve reliable protective grounding.
2. Flexible solutions: The switch cabinet has a complete range of solutions, which can flexibly form various system solutions to meet customer requirements; according to the application environment and special requirements, it can also provide high-altitude series products, double bus series and various non-standard solutions .
3. Strong practicability: The cabinet shell has high sealing strength to prevent the equipment from being invaded by debris and insect pests. The protection level is IP4X; the same model of handcart has good interchangeability; the secondary line is laid in the trunking and is well protected , And easy to overhaul; installation, debugging and maintenance from the front, can be back to back to form a double arrangement or installed against the wall, reducing the footprint; the use of general accessories and standard spare parts, low maintenance costs.
Technical data
| No. | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 3.6~24 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current |
A | 630,1250,1600,2000,2500,3150,4000 |
4 | Branch busbar Rated current | | 630,1250,1600,2000,2500,3150,4000 |
5 | Main busbar Rated current | | 630,1250,1600,2000,2500,3150,4000 |
6 | 1min Power frequency withstand voltage | wet |
KV | 38 | 50/60 |
| | | dry | | 48 | 60/65 |
7 | Lightning impulse withstand voltage | kV | 75 | 95/125 |
8 | Rated short circuit breaking current (peak) |
KA | 40/50/63/80/100 |
9 | Short time withstand current(4s) | | 20/25/31.5/40 |
| 10 | Protection type | | IP4X for housing |
