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KYN28A-24 Type armoured transfer type AC metal closed switchgear

KYN28A-24 armoured transfer type AC metal closed switch equipment is mainly used in three-phase AC rated voltage 24kV, rated frequency 50HZ power system. It is mainly used in power plants, substations, industrial and mining enterprises, railway transportation and high-rise buildings in the allocation and distribution of electric energy, and has functions of control, protection and monitoring. This switchgear meets the standard of GB3906 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, and prevents misoperation。

●The two wire grooves in high pressure indoor use all metal protection, and the operation is safer and more reliable。

●A heater can be installed in the circuit breaker room and the cable room to prevent condensation and corrosion。

●It can be equipped with voltage transformer hand car, isolated handcart, fuse handcart and so on. The same use handcart has interchangeability。

●All devices are properly equipped with the same place for inspection。

●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。

●Depending on the customer's needs, it is easy to fit with the structure, easy to install and locate in any floor。

●The charged part is properly insulated and all components are installed in a metal box and are safe for personnel or equipment。


◇Technical Parameter:

 Serial number

          Name

Company

Numerical value

 1

Rated voltage

 kV

24

 2

Rated current

 A 

630  1250  1600  2000  2500  3150 

 3

Rated frequency

 Hz 

50

 4

1min power frequency tolerance voltage phase, relative ground

 kV 

65 

 5

1min power frequency tolerance voltage isolation (fracture)

 kV 

79 

 6

Lightning impulse tolerance voltage peak
Interphase, relative

 kV 

125

 7

Lightning impulse tolerance voltage peak
(fracture)


kV 

145 

 8

The main busbar rated current

A

630  1250  1600  2000  2500  3150 

 9

Branch bus rated current

 A 

630  1250  1600  2000  2500  3150   

 10

Rated short circuit breaking current

 kA 

20  25  31.5  

 11

Rated short-time tolerance current / rated short duration

 kA/4S 

20  25  31.5  

 12

Rated peak tolerance current

 kA 

50  63  80   

 13

Rated short-circuit closing current

 kA 

50  63  80   

14

Internal arc tolerance current

 kA/0.5S

31.5

 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:

Beijing

Width(mm)

  Height(mm)

Depth(mm)

KYN28A-24

1000

 2430

      1860

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