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Yangzhou Ke Yu Electric Power Co., Ltd.

Address: No. 97, Zhongxin Road, Automobile Industrial Park, Yizheng City, Yangzhou City
Phone: 0514-87520111

E-mali:keyudl09@126.com
Website: www.keyudl.com

KXGN-12 type user boundary switch cabinet

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产品描述
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Summary
The KXGN - 12 type user demarcation switch cabinet equipment widely used in cables of rated voltage 12kV, rated frequency 50Hz tap, segmented, and multiple power point contact, applicable to the city underground cable ring and radiant power line and the control and the connection, and underground cables and overhead line hybrid net import line control and connection, realize the ring network power supply and radiation power. The product has the unique function of automatically removing branch line, grounding fault and interphase short circuit fault, which is called the function of dividing switch cabinet or watchdog function. It is a new high-tech product integrated with vacuum switch cabinet technology and microelectronic intelligent control technology.
 

Reference standard

GB/T11022   Common technical requirements for high voltage switchgear and control equipment standards
GB 3906 3.6kV ~ 40.5kV AC metal closed switch equipment and control equipment
GB 1984   High voltage AC circuit breaker
GB 311.1  Insulation coordination of high voltage transmission and transformation equipment
GB/T3309  Mechanical test of high voltage switchgear at normal temperature
GB 4208 Shell protection level (IP code)
GB/T191    Packaging, storage and transportation, illustrations
DL/T404  3.6kV ~ 40.5kV AC metal closed switch equipment and control equipment

 

Product model definition

 

technical parameter

Serial number

project

unit

data

1

Rated voltage              

kV

12

2

Rated frequency              

Hz

50

3

Power frequency withstand voltage

Relatively, white and white

kV/min

42

Broken mouth

kV/min

48

4

Lightning impulse withstand voltage (peak)

Relatively, white and white

kV

75

Broken mouth

kV

85

5

Rated current              

A

630

6

Rated short-time withstand current      

kA

20 (4s)

7

Rated peak withstand current     

kA

50

8

Rated short-circuit breaking current      

kA

20

9

Rated short-circuit current      

kA

50

10

Rated short-circuit breaking current frequency      

30

11

The number of mechanical life

10000

12

Annual leakage rate

/

≯1%

13

Ambient air temperature

The highest temperature

+70

14

Lowest temperature

-40

15

The maximum temperature difference

K

≤25

16

altitude

m

≤2000

17

humidity

Daily average relative humidity

%

≤95

18

Monthly relative humidity average

≤90

19

Earthquake-resistant capacity

Horizontal acceleration

g

0.3

20

Ground vertical acceleration

0.15

21

Safety factor

/

6.7

 

Product model definition

 

typical application

1.Single switch multi-loop outdoor cable branch box

Into four out of the program                                                                                    Into four with a ring out (load switch) program

use
Generally used for outdoor cable tapping and cable-specific branch line monitoring. Can be protected branch of the single-phase control of the ground and short-circuit fault will not affect the trunk and adjacent lines;
Can be configured as an integrated electric, can also be made into a full manual configuration, the maximum cable tap capacity into one into four.
Monitoring of specific branch lines of cables.
Can protect the branch of the alleged single-phase ground fault and short-circuit fault will not affect the trunk and adjacent lines;
Multi-circuit bus expansion.
When the fixed cabinet type can not meet the requirements of the number of multi-circuit solutions in a single line, it can be used as an expansion cabinet type and realize the fault monitoring function.
Upgrading of the existing lines, do not have the watchdog function of existing branch line into the switchgear, branch line monitoring.

 

Cabinet size
1.Single switch multi-loop outdoor cable branch box (a switch)

 

2.Boundary switch cabinet internal dimensions

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