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KYN28-12 metal armored removable switchgear

KYN28-12 metal armored removable switch cabinet is a switch cabinet developed by hezong science and technology by adopting advanced technology and refining the company's accumulated experience in design and manufacturing for many years. this switch cabinet meets the requirements of GB3906, IEC298 and other standards, and can be used in conjunction with hezong science and technology VS1/HZV1, VD4 and other vacuum circuit breakers. it has the characteristics of advanced, reasonable, compact structure, superior performance, safety and reliability, etc, at the same time, it has a perfect "five prevention" chain function, which is suitable for the rated voltage of 3 ~ 12kV single bus and single bus sectional power system, especially suitable for the frequent operation of the important load. Such as power plants, airports, substations, petrochemical systems, metallurgical systems, factories and mines institutions, hotels, high-rise buildings and other places.
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Product Parameters

Performance characteristics

The high-precision cabinet body assembled with imported aluminum-zinc composite steel plate or high-quality galvanized sheet does not need to be painted and will never rust.

Fully metal armored, each functional unit can be operated and moved even if the cabinet door is closed.

Simple and effective "five-proof" locking to prevent misoperation.

Strict protective measures to prevent the invasion of foreign bodies and pests to ensure safe operation.

Plenty of space cable terminal room, can be connected to multiple cables.

Easy to operate and easy to monitor the cabinet design.

Small and reliable wall-mounted switchgear, saving the floor space of the distribution room.

Fast earthing switch for earthing and short circuit

 

Technical parameters

Serial Number

Name

Parameters

1

Rated voltage

12kV

2

Rated frequency

50Hz

3

Rated current

630、1250、1600、2000、

2500、3150、4000

5

Rated short-circuit breaking current

20kA；25kA；31.5kA；40kA；

6

Rated short-circuit closing current

50kA；63kA；80kA；100kA；

7

Rated short-time withstand current/time

20kA/4S；25kA/4S；31.5kA/4S；40kA/4S；

8

Rated peak withstand current peak

50kA ；63kA ；80kA ；100kA ；

9

Rated short-time power frequency withstand voltage

Interphase and to the ground

42kV/1min

fracture

48kV/1min

10

Rated lightning impulse withstand voltage peak

Interphase and to the ground

75kV

fracture

85kV

11

Main circuit resistance

≤ 150μΩ

12

Circuit Breaker Loop Resistance

≤ 60μΩ

13

Rated operating sequence

0-0.3s-CO-180s-CO

14

Protection level

Housing: IP4X; Compartment: IP2X

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