KYN28A-12/24 12kV 24kV Medium Voltage Indoor Metal-clad Switchgear

Short Description:

  • KYN28 indoor metal-clad withdrawable switchgear(hereinafter short as switchgear)is a complete power distribution device for 3.6~24kV,3-phase AC 50Hz,single-bus and single-bus sectionalized system.
  • It is mainly used for power transmission of medium/small generators in power plants; power receiving, transmission for substations in power distribution and power system of factories, mines and enterprises, and starting of large high-voltage motor, etc.,so as to control, protect and monitor the system.
  • The switchgear meets IEC298,IEC60298,GB3906-91.In addition to be used with domestic VS1 vacuum circuit breaker, it can also be used with VD4 from ABB,3AH5 from Siemens domestic ZN65A,and VB2 from GE, etc.,it is truly a power distribution device with good performance.

Product Detail

Product Tags

8

Service conditions of indoor Metal-clad Switchgear

Normal service conditions of switchgear as follows:
Ambient temperature:
Maximum

+40°C

Maximum 24 hour average

+35°C

Minimum (according to minus 15 indoor classes)

-15°C

Ambient humidity:
Daily average relative humidity

less than 95%

Monthly average relative humidity

less than 90%

Earthquake intensity

less than 8 degree

Height above sea level

less than 1000m

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Special service conditions

Each special service condition should be proposed in advance and confirmed by the manufacturer and user.

The dielectric strength of the air will be reduced in when altitude is over 1000m at site.

If the ambient temperature is over the maximum degree, the capacity of the using current must be lower than the designed currents for both main bus-bar and branching bus bar. The installation of area is propitious to reduce heat.

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 Technical specification of KYN28-12 /24switchgear

No Item Unit Parameter
1 Rated voltage kV 7.2kV, 12kV, 17.5kV, 24kV
2 Rated frequency Hz 50/60
3 Rated current A 630, 1250, 1600, 2000, 2500, 3150, 4000
4 Branch bus-bar rated current A 630, 1250, 1600, 2000, 2500, 3150, 4000
5 Main bus-bar rated current A 630, 1250, 1600, 2000, 2500, 3150, 4000
6 1 min power frequency withstand voltage(wet/dry) kV 38/48, 50/60/60/65
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) kA 20/25/31.5/40
10 Protection type   Enclosure:IP4X,

Between compartment:IP2X

Structure & Basic Components of Switchgear

KYN28 JIEGOUTU
1. Enclosure 2. Sub-bus-bar 3. Main bus-bar bushing 4. Main bus-bar
5. Fixed contact assembly 6. Fixed contact box 7. Current transformer (CT) 8. Earth-switch
9. Cable 10. Surge arresters (not installed) 11. Bus-bar of earthing 12. Isolating plate
13. Partition (shutter) 14. Secondary circuit plug 15. CB truck (cart) 16. Heater
17. Draw-out type horizontal isolating plate 18. Earth switch operating mechanism 19. Control cable groove 20. Pressure releasing device

 

Outline dimension

Height

2300

width

Rated current 1250A and below

800

Rated current 1600A and Above

1000

depth

Cable inlet and outlet

1500

Overhead inlet and outlet

1660

 

Mounting dimension

Cabinet width A

Cabinet depth B

L1

L2

L3

L4

800

1500 (Cable)

530

630

150

490

1660(Overhead)

530

630

310

650

1000

1500 (Cable)

730

830

150

490

1660(Overhead)

730

830

310

650

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Product Features

1.The cabinet structure is made of aluminum-zinc plate after being machined by CNC machine tool using multiple bending process;

2.All operations are carried out under the closed state of the door;

3. High protection level can prevent the intrusion of debris and insects;

4.simple and effective five-proof locked to prevent misoperation. It can be equipped with VS1 and VD4 vacuum circuit breakers.

5.It features with simple replacement of circuit breaker, good hand truck interchangeability, wall-installation and cabinet front maintenance

6.It  features with lower floor space, enough space for cable room, multiple cables connection. Heaters can be installed in the circuit breaker and cable room to prevent condensation and corrosion.


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