I.General
KYN28-12 armoured middle-mounted metal enclosed switchgear (hereinafter referred to as switchgear) is our new designed and developed product on the basis of absorbing advanced technology abroad, which can replace the old metal enclosed switchgears, such as KYN1-10, JYN2-10, GBC-10 series, etc.
II.Model Definition
III.Operational Environment
a. Ambient Temperature: -10℃~+40℃
IV. Technical Parameters
Item
Unit
Parameters
Rated voltage
kV
3, 6, 7.2,12
Rated frequency
Hz
50
CB rated current
A
630, 1250, 1600, 2000,2500, 3150
Switchgear rated current
A
630, 1250, 1600, 2000,2500, 3150
Short-time withstand current
kA
20, 25, 31.5, 40, 50
Rated dynamic stability current(peak)
kA
50, 63, 80, 100, 125
Rated short circuit breaking current
kA
20, 25, 31.5, 40, 50
Rated short circuit closed current
kA
50, 63, 80, 100, 125
Rated insulation grade
1min power frequency withstand
voltage
kV
24, 3, 42
Lightning impulse
withstand voltage
kV
40, 60, 75
Protection level
Shell: IP4X.
When Isolation chamber and CB chamber door is open: IP2X.
V. Schematic Diagram
A. Busbar chamber
B. CB Handcart chamber
C. Cable chamber
D. Relay instrument chamber
1. Cabinet
2. Branch bar
3. Busbar
4. Isolated contacts
5. Contact box
6. Earthing switch
7. CT(Current transformer)
8. Zinc Oxide arrestor
9. Baseplate
10. Main grounding bar
11. Control line slot
12. Cable seal terminal
13. Grounding switch operating mechanism
14. Detachable horizontal clapboard
15. Wire rod mechanism
16. VCB (Vacuum Circuit Breaker)
17. Secondary Plug
18. Terminal board
19. Shutter
20. Detachable clapboard
21. Pressure release
VI. Installation Dimensions
Application of Switchgear |
Width(W) |
Depth(D) Wire in and out at Bottom |
Depth(D) Wire in and out at Top |
Zn63 / VS1 |
800 |
1500(1550)
|
1660
|
CB
|
1000
|
||
3AH,ZN12 |
800 |
1500(1550)
|
1660
|
CB |
1000 |
||
VD4,VS1 |
800 |
1500(1550)
|
1660
|
CB |
1000 |
Application of Switchgear |
Width(W) |
Depth(D) Wire in and out at Bottom |
Depth(D) Wire in and out at Top |
W-VAC |
700 |
1660
|
1660
|
CB
|
800
|
||
VCP-W |
800 |
1660
|
1660
|
CB |
1000 |