KYN28-12（GZSI-12Z）Middle-mounted Switchgear Cabinet - - PRODUCTS - Shaanxi XD HI-TECH Medium-low Voltage Apparatus Co., Ltd

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.

The shell whose mechanical strength is high is assembled when coated Al-Zn steel plates are processed, bended and molded by CNC machine tool so that tidy and beautiful product is ensured. The door is plastic sprayed coating therefore, it has the high impact resistance and corrosion resistance ability. The protection grade of shell is IP4X.

The main switch can be configured with VD4-type vacuum circuit breaker produced by ABB, Schneider HVX, C3 series fixed load switch, meanwhile, it also can be assembled with several domestic vacuum circuit breakers (such as VS1, VH1, VK, ZN28) to replace the similar domestic products.

II.Model Definition

III.Operational Environment

a. Ambient Temperature: -10℃~+40℃

b. Relative Humidity: Daily average is not greater than 95%, monthly average is not greater than 90%

c. Elevation: Not higher than 1000m

d. The seismic intensity should not be greater than 8-magnitude.

e. It should be operated in the place without danger of fire, explosion, serious dirtiness, chemical corrosion and acute shaking.

If it is planed to operate in the condition out of the above limits, the customers should negotiate with us to decide the allowable operational conditions and technical measures.

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

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.

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	1500(1550)	1660
3AH,ZN12	800	1500(1550)	1660
CB	1000	1500(1550)	1660
VD4,VS1	800	1500(1550)	1660
CB	1000	1500(1550)	1660