Metal Enclosed Electrical Switchgear
KYN28A-12 series switchgear is suitable for single-phase bus and single bus section system with three-phase AC 50Hz, rated voltage 12kV and below, as receiving and distributing electric energy, and controlling, protecting and detecting power circuit.
Description
KYN28A-12 Metal Enclosed Electrical Switchgear Technical Parameter:
Item | Unit | Parameter |
Rated voltage | kV | 12 |
Rated current | A | 630,1250,1600,2000,2500,3150,4000 |
Rated frequency | Hz | 50 |
Rated short-circuit breaking current | kA | 25、31.5、40 |
Rated short-circuit making current | kA | 63、80、100 |
Rated short-time withstand current/4s | kA | 25、31.5、40 |
Rated peak withstand current/4s | kA | 63、80、100 |
Rated short circuit power frequency withstand voltage (1min) | kV | 42/48 |
Rated lightning impulse power frequency withstand voltage | kV | 75/85 |
Internal fault arc test | IAC and AFLR; switch room 20kA1s, cable room 20kA0.1s |

This product is suitable for three-phase AC 50Hz, rated voltage 12kV and below single-phase bus and single bus segmentation system, as receiving and distributing electric energy, and controlling, protecting, and detecting power circuits. It is widely used in power plants, substations, industrial and mining enterprises and urban infrastructure projects such as subways, airports, and buildings.
Features:
1. The switchgear is an armored structure. The switchgear cabinet shell material is high-quality aluminum-zinc coated steel plate, which is highly resistant to corrosion. The switchgear cabinet shell is processed by precision CNC sheet metal processing equipment. It adopts double bending process and assembled with rivet nuts and high-strength bolts to ensure the strength and rigidity of switchgear through internal fault arcs.
2. The enclosure protection grade is IP4X; when the partition and circuit breaker door are opened, IP2X.
3. Switchgear can be equipped with domestic mainstream circuit breakers, such as CVB, VD4, VS1, etc.
4. The switchgear can be closed to ensure the safety of operating personnel and equipment. Simple, complete and reliable "five prevention" chain to prevent misoperation by personnel.
5. Switchgear is divided into circuit breaker room, busbar room, cable room, secondary control room, and each compartment is independent of each other.
6. The front and rear door panels are equipped with observation windows, and the status of the main components in the equipment can also be observed during operation.
7. The switchgear can be installed on the wall reliably, saving the floor space of the power distribution room.
8. The switchgear is equipped with a fast grounding switch for grounding and loop short-circuiting.
9. Switchgear can choose ordinary relay protection components or microcomputer protection units.
10. The design complies with the standards GB1984, GB3906, GB11022, IEC298, DL404 and other standards.


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Certificates

Contact us:
Contact: Charles Du
Mobile: +86 18639199897
E-mail: Fengyuan800@outlook.com
If you want to know more about our products, please contact us. Looking forward to serving you.
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