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          The quality of survival, technology and development
          Quality for survival, technology for development
          KYN28-12 type Indoor Metal-armored Withdrawable Switchgear Unit
          KYN28-12 type Indoor Metal-armored Withdrawable Switchgear Unit
          KYN28-12 type Indoor Metal-armored Withdrawable Switchgear Unit

          Description:

          KYN28-12 type Indoor Metal-armored Withdrawable Switchgear Unit is applicable to AC 3.6-12KV/50Hz three-phase system and can be used for single busbar, single busbar segmentation systems or dual busbar systems. The switchgear has complete and reliable anti-misoperation function. It meets several Standards such as IEC298, IEC694,GB3906,DIA04 and Germany DIN.VDE0670 , ect.

          Features:

          The switchgear is a new model developed by ourself on the basis of introducing advanced technology at home and abroad. The product has many advantages as following:

          u Good corrosion and oxidation resistance.

          u Extremely high strength by multiple hemming process.

          u Assembled structural design helps high degree of standardization and strong versatility of components.

          u Lightweight and interchangeable because of centered structure.

          u The main switch is highly adaptable and can be equipped with a variety of domestic and joint venture brand circuit breakers.

          u High IP grade. The shell is IP4X.

          Using environment:

          u Temperature: Min -10℃~Max+40℃;

          u Relative humidity: Daily average ≦95%; Monthly average≦90%;

          u Altitude: ≦1000m;

          u Earthquake level: ≦8 grade;

          u Installation location: The place with no severe impact, serious pollution and chemical corrosion, no conductive dust and explosion risk.

          When the conditions of use exceed the above range, the user shall negotiate with us to determine the allowable range or take corresponding supplementary technical measures.

          Technical Parameters:

          Items

          Unit

          Value

          Rated voltage 

          Kv

          3

          6

          7.2

          12

           

           

          Rated frequency

          Hz

          50

           

           

           

           

           

          Breaker rated current

          A

          630

          1250

          1600

          2000

          2500

          3150

          Switchgear rated current

          A

          630

          1250

          1600

          2000

          2500

          3150

          Rated short-time withstand current (4s)

          kA

          16

          20

          25

          31.5

          40

          50

          Rated peak withstand current (peak)

          kA

          40

          50

          63

          80

          100

          125

          Rated short-circuit breaking current

          kA

          16

          20

          24

          31.5

          40

          50

          Rated short-circuit closing current (peak)

          kA

          40

          50

          63

          80

          100

          125

          Rated insolation level  

          1min power frequency withstand voltage

          kV

          24

          32

           

           

          42

          Lightning impulse withstand voltage

          kV

          40

          60

           

           

          75

          IP grade

           Shell is IP4X, IP2X when the isolation room and breaker door is open.


          Structure features: 

          Two major components:Cabinet and Centered Withdrawable parts.

          The cabinet is separated by a reliable grounded metal plate into four separate parts: the circuit breaker handrail room, the busbar room, the cable room, and the relay meter room.

          Switch cabinet installation:

          1. According to engineering needs and drawings, the switch cabinet is transported to a specific location. If a row of longer switchgear cabinets (such as more than 10), the cabinet work should start from the middle.

          2. Specific means of transport such as a crane or forklift. A roller crowbar is strictly forbidden.

          3. Pull out the circuit breaker handcart from the switchgear and keep it in a safe place.

          4. Loosen the fixing bolts in front of the busbar compartment and remove the part 9.

          5. Loosen the fixing bolt and remove the part 19.

          6. Loosen and remove the part 16.

          7. Remove the part 1 and 2 from the control-slot on the left side of the switchgear. Remove the right-front control-slot cover at the same time.

          8. On this basis, the switchgear cabinets are installed one by one, including horizontal and vertical aspects. The installation accuracy must not exceed 2mm.

          After completely assembled, it can be connected to the base channel steel by ground screw or welded to the base channel steel by electric welding.

          Product details
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