KYN28A-12 Indoor Armored Withdrawable AC Metal-Enclosed Switchgear

Negotiable
China
No.868 Jiahang Road, Jiading District, Shanghai
+86 21 69900817
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Product Introduction

Product Features:

·The cabinet structure is assembled from aluminum-zinc coated sheets through multiple folding processes.

·Fully metal armored and completely compartmentalized.

·The circuit breaker chamber door adopts a double-layer bent hook-tooth locking device, with optional IAC level for internal arc.

·The cabinet shell has high sealing degree to prevent debris and insects from invading the equipment, with protection degree IP4X.

·Simple and effective interlocking to prevent misoperation.

·Can be equipped with VDS, VSI, VD4 and other vacuum circuit breakers.

·The vacuum circuit breaker and its operating mechanism in the high-voltage chamber require only minimal maintenance.

·Replacing the circuit breaker is very simple, with good handcart interchangeability.

·The cabinet can be installed against the wall, with front maintenance, reducing floor space. It can also be installed away from the wall with maintenance on both sides.

·Secondary wiring is laid in spacious cable troughs, making wiring easy.

·The cable chamber has ample space, with cable installation height greater than 650mm, allowing connection of multiple cables.

·The installation condition of the cable chamber can be easily observed through the panel door.

·Fast earthing switch is used for earthing and circuit shorting.

·The product complies with standards such as GB/T3906, DL/T404, and IEC 62271-200.

·It can be interchanged with all switchgear cabinets that have obtained the State Grid 12kV handcart cabinet standardization certification.

Product Parameters

Item

Unit

Parameter

Rated Voltage

kV

7.2,12

Rated Power Frequency Withstand Voltage

kV

To Earth and Between Phases: 42; Across Open Contacts: 48

Rated Lightning Impulse Withstand Voltage

kV

To Earth and Between Phases: 75; Across Open Contacts: 85

Rated Frequency

Hz

50

Rated Current

A

630

1250,2500

3150*

4000**

Rated Short-Circuit Breaking Current (RMS)

kA

20,25

25,31.5

31.5,40

40

Rated Short-Circuit Making Current (Peak)

kA

50,63

63,80

80,100

100

Rated Dynamic Stability Current (Peak)

kA

50,63

63,80

80,100

100

Rated Thermal Stability Current 4s (RMS)

kA

20,25

25,31.5

31.5,40

40

Protection Degree

 

Enclosure IP4X, IP2X when compartment doors are open

Overall Dimensions (Width x Depth x Height)

mm

(800/1000/1200)*1450/1750*2360

Note: Rated current 1600A and above have cabinet width of 1000mm;

Cabinet depth is 1750mm for overhead incoming/outgoing lines;

Cabinet width is 1200mm when the transformer is larger than 80kVA.

Weight

kg

700-1200