KYN28-12KV Switchgear
  • KYN28-12KV SwitchgearKYN28-12KV Switchgear

KYN28-12KV Switchgear

As a leading provider in China, Keeya specializes in delivering customized solutions for advanced electrical infrastructure, exemplified by their KYN28-12KV Switchgear. This cutting-edge switchgear reflects Keeya's commitment to innovation and tailored solutions in the power distribution sector.

Model: KYN28A-12

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Product Description

Engineered with precision and adhering to the high quality standards, the KYN28-12KV Switchgear stands as a testament to Keeya's expertise in providing adaptable and reliable solutions for diverse electrical applications. With a focus on customization, Keeya ensures that their switchgear meets the unique specifications and requirements of clients, contributing to the resilience and efficiency of modern electrical systems.


KYN28A-12 armored removable metal closed switchgear is suitable for 3. 6-12KV three-phase AC 50Hz power grid, which is used for receiving and distributing electric energy, as well as for controlling, monitoring and protecting the circuit. It can be for High-Voltage Switchgear And Controlgear Standards, GB3906 GB3906-2006 Alternating-current metal-enclosed switchgear and controlgear for rated voltage above 3. 6kV and up to and including 40. 5kV DL 404 Ordering condition high-voltage ac. circuit-breakers, type tests and routine tests. It also has a perfect and reliable ant-misoperation function.


service condition

● Ambient air temperature: upper limit +40℃, lower limit-10℃;

● Relative humidity: daily mean not more than 95%, monthly mean not more than 90%;

● Altitude: 1000m and below;

● Earthquake intensity: not more than 8 degrees;

● In place of no Pre or explosion risk, no serious pollution, no chemical corrosion and no violent vibration. For use in excess of the normal environmental conditions specified in GB3906, it should be negotiated between the user and the manufacturer.


KYN28-12KV Switchgear feature

KYN28A-12 armored removable AC metal enclosed switchgear (hereinafter referred to as switchgear) is a new product designed and developed by our company on the basis of absorbing the advanced manufacturing technology at home and abroad. It can replace various old metal enclosed switchgears, such as KYN1-12, KYN2-12 and other series products.

The product has the following obvious advantages:

●The enclosure of the product is completely bolt assembly with high mechanical strength, which effectively ensures that the product is neat and beautiful, the cabinet door is sprayed with plastic coating, with strong impact resistance and corrosion resistance ability. The protection level of enclosure is IP4X(it can be changed to iron plate according to customer needs).

●The switch of this product can be equipped with VD4 vacuum circuit breaker produced by ABB company and C3 series Pxed load switch, and also can be equipped with a variety of domestic series vacuum circuit breakers (such as VS1, VH1, VK, Zn28), which can Replace the similar foreign products.

● No matter what type of circuit breaker is selectes, the bare conductor air insulation distance can be guaranteed to be greater than 125mm and the composite insulation can be greater than 60mm. lts circuit breakers have the unique advantages of long life, less maintenance and small size.


KYN28-12

Armored Removable AC Metal-enclosed Switchgear

The switchgear is designed according to the metal-enclosed switchgear in GB3906-91. See Figure 1 for the structure description of the switch cabinet:the switch cabinet is composed of Fixed cabinet body and withdrawable parts (referred to as handcart). The enclosure of the cabinet and the partition plate of each functional unit are connected by bolts. The protection level of the switchgear enclosure is IP4X, and the protection level of the breaker room door is IP2X when the door is open. The switch cabinet can be equipped with vacuum breaker handcart or Fixed load switch. It has overhead incoming (outgoing)line, cable outlet and other functional solution. The switchgear can be arranged in double cabinets, namely, back-to-back or face-to-face double row arrangement.


Technical parameter

Switchgear technical parameter

Item

Unit

Value

Rated voltage

kV

3

6

7.2

12



Rated frequency

Hz

50

Rated current of circuit breaker

A

630

1250

1600

2000

2500

3150

Rated current of switch cabinet

A

630

1250

1600

2000

2500

3150

(4S)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

25

31.6

40

50

Rated short circuit making current(peak)

kA

40

50

63

80

100

125

Rated insulation Level


1 min power frequency withstand voltage

kV

24

32

42


Lightning impulse withstand voltage

kV

40

60

75

Protection level

P4X for enclosure, IP2X for isolating room and circuit breaker room open


Installation of switchgear

a. Transfer the switchgear to a specific location according to engineering requirements and drawings.If there is a long row of switchgear (e.g.,more than 10 switchgears),the consolidation work should start from the middle position.

b. Use specific means of transport such as cranes or forklifts.Roller crowbars are strictly prohibited.

c. Take out the circuit breaker handcart from the switchgear and store it elsewhere for safekeeping.

d. Loosen the retaining bolts in front of the bus compartment and remove the vertical partition plate 9.

e. Loosen the retaining bolts of horizontal partition plate 19 under the breaker compartment and remove the horizontal partition.

f. Loosen and remove base plate 16.

g. Remove cover plates 1 and 2 from the control lines lot on the left side of the switchgear. Remove the cover plate of the right front control line groove at the same time.

h. Install the switchgear one by one on the basis,including the horizontal and vertical aspects,and the installation irregularity of the switchgear shall not exceed 2mm.

I. When the switchgear is completely combined (spliced),it can be connected to the base channel steel with foundation screws or welded firmly with the base channel steel by electric welding.


Switch cabinet outline size

KYN28-12

A. Bus room

B. Circuit breaker room

C. Cable room

D. Meter room

1. Enclosure

1. Pressure relief plate

1. Control cable cover plate

2. Branch bus

3. Bus

4. Fixed contact device

5. Spring contact

6. Ground knife

7. Current transformer

8. Voltage transformer

9. Assembled partition plate

10. Secondary plug

11. Auxiliary switch

12. Sliding curtain board

13. Withdrawable hand car

14. Ground knife operating mechanism

15. Cable sealing terminal

16. The bottom

17. Lead screw mechanism

18. Ground the main bus

19. Loading and unloading horizontal partition


Ordering instruction

Please specify when ordering:

● Main circuit solution number,purpose,single line system diagram,arrangement diagram and distribution room layout diagram;

● Requirements for control,measurement and protection functions of switchgear and other latching and automatic devices;

● Type,specification and quantity of electrical components in the switchgear;

● lf bustray connection is needed between switchgear or incoming line cabinet,specific data such as rated carrying capacity of bus tray,span of bustray and height from ground shall be provided;

● Switchgear used in special environmental conditions should be detailed when ordering.

● Other special requirements.



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