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High Voltage Switchgear Equipment

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KYN28A-12 type armoured transfer type AC metal closed switchgear

KYN28A-12 armored transfer type AC metal closed switch equipment is a three-phase AC rated voltage 12kV, rated frequency 50HZ complete set of distribution equipment. It is mainly used in the transformation of power plants, substations, industrial and mining enterprises and high-rise buildings as a way to receive and distribute electric energy, so as to control, protect and monitor. This switchgear meets the standards of GB3906, GB11022 and IEC298 (1009).

◇Main features:

The switchgear is made up of two parts, the cabinet and the removable parts. The appearance is flat, simple and beautiful. It has a simple and reliable "five guard" interlocking function, which prevents misoperation.

The two line grooves in high pressure indoor use all metal protection, and the operation is safer and more reliable.

The heater can be installed separately in the circuit breaker room and the cable room to prevent condensation and corrosion.

All devices are properly equipped with the same place for inspection.

When a substation is designed to form a complete set of equipment with various functions, it needs less space and can be applied to any premises inside and outside the house.

According to customer needs, it is easy to fit the structure, and easy to install and locate in any floor.

The charged part is properly insulated, and all the components are installed in the metal box, which is very safe for the personnel or equipment. When using a complete set of substations, the high voltage circuit is easy to penetrate into the load center and reduce the power loss, and the voltage can be improved.


◇Technical parameters:

Serial number

Name

Company

numerical value

1

Rated voltage

kV

12

2

Rated current

 A 

630  1250  1600  2000  2500  3150  4000

3

Rated frequency

 Hz 

50

4

1min power frequency tolerance voltage phase, relative ground

kV

42

5

1min power frequency tolerance voltage isolation (fracture)

kV

48

6

Lightning impulse tolerance voltage peak

Interphase, relative

kV

75

7

Lightning impulse tolerance voltage peak

(fracture)

kV

85

8

The main busbar rated current

A

630  1250  1600  2000  2500  3150  4000

9

Branch bus rated current

 A 

630  1250  1600  2000  2500  3150   4000

10

Rated short circuit breaking current

 kA 

20  25  31.5  40 

11

Rated short-time tolerance current / rated short duration

 kA/4S 

20  25  31.5  40 

12

Rated peak tolerance current

 kA 

50  63  80  100 

13

Rated short-circuit closing current

 kA 

50  63  80  100 

14

1min auxiliary circuit power frequency tolerance voltage

 V 

2000

15

Protection grade

 

IP4X (open door opening of circuit breaker or IP2X between compartments)


◇Product size:

nucha

width(mm)

height(mm)

depth(mm)

KYN28A-12

650、800、1000

 2320

   1510、1670、1810

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