Product features:
Design and structure comply with IEC 62271-200, GB/T3906, and other standards
Equipped with various circuit breakers such as VT19(VS1)-12 and VD4
All functional compartments are separated by grounding metal plates
Reliable five-prevention interlock function, fully meeting the “five-prevention” requirements of national power departments
Optional intelligent measurement, control, protection devices such as TA26B and related intelligent components
Scope of application:
The KYN28i-12 intelligent indoor high-voltage alternating current metal-enclosed armored switchgear (hereinafter referred to as the KYN28i-12 switchgear) is suitable for three-phase AC 50Hz, 7.2~12kV single-busbar and single-busbar sectionalized power systems, and features the “five-prevention” function. The removable parts of the switchgear can be configured with vacuum circuit breakers, vacuum contactors, and other components.
Serial Number
|
Name
|
Unit
|
Parameters
|
1
|
Rated voltage
|
kV
|
12
|
2
|
Rated insulation level
|
1min power frequency withstand voltage (effective value)
|
kV
|
42
|
Lightning impulse withstand voltage (peak)
|
kV
|
75
|
3
|
Rated frequency
|
Hz
|
50
|
4
|
Rated current of main bus
|
A
|
630, 1250, 1600, 2000, 2500, 3150, 4000
|
5
|
Rated current of branch bus
|
A
|
630, 1250, 1600, 2000, 2500, 3150, 4000①
|
6
|
Rated short-time withstand current
|
kA
|
20, 25, 31.5, 40②
|
7
|
Rated peak withstand current
|
kA
|
50, 63, 80, 100
|
8
|
Height
|
mm
|
2300
|
9
|
Width
|
mm
|
650/800/1000
|
10
|
Depth
|
mm
|
1350/1500/1660
|
11
|
The rated current of the branch bus is 1250A and below, and the short-circuit breaking current is 31.5kA and below.
|
-
|
650/800
|
12
|
The rated current of the branch bus is 1600A and below, and the short-circuit breaking current is 40kA.
|
-
|
800
|
13
|
Rated current of branch bus is 1600A and above
|
-
|
1000
|
Enclosure protection grade: 1P41; when the circuit breaker chamber door is opened and the handcart is removed, the protection grade is IP2X
|
Note: ① Ventilation device shall be equipped
② 40KA is 3s
③ The short-circuit capacity of instrument transformer should be considered separately
④ Weight 800-1200kg
⑤ The size of the cabinet body shall be subject to the order design scheme.