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CKSS-12 Series Solid Insulated RMU (Ring Main Unit)CKSS-12 Series Solid Insulated RMU (Ring Main Unit)CKSS-12 Series Solid Insulated RMU (Ring Main Unit)CKSS-12 Series Solid Insulated RMU (Ring Main Unit)

CKSS-12 Series Solid Insulated RMU (Ring Main Unit)

  • In recent years, with the general improvement of design quality, environmental protection performance and manufacturing technology of solid insulated ring main unit, the product quality and standardization degree have met the requirements of users.

►Product overview

In recent years, with the general improvement of design quality, environmental protection performance and manufacturing technology of solid insulated ring main units, the product quality and standardization degree have met the requirements of users. Through the promulgation of DL standard and the gradual expansion of usage, solid insulated ring main units will become the mainstream products in smart grid construction.


CKSS solid insulated ring main unit is an intelligent, environment-friendly and all-working equipment with high reliable operation safety, which is suitable for 12kV secondary distribution system. It has the characteristics of complete insulation, long service life, maintenance-free, small occupied space, safety and reliability, and is not affected by the environment. Widely used in industrial and civil Ring Main Unit and terminal power supply, especially in small secondary distribution stations, switching stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels and other fields, especially in plateau, humid, cold and low-lying special environments, the products are not only widely used in China, but also exported to western Europe, northern Europe and other countries.

 

 

►Technical parameter

Serial Number

Name Unit V C
F
1 Rated voltage kV 12 12
12
2 Rated frequency Hz 50 50
50
3 Rated current A 630 1250 630 1250
630
4 Rated short-circuit breaking current kA 25 31.5 / /
31.5
5 Rated short-circuit closing current kA 63 80 50 50
/
6 Rated short-term withstand current and duration kA/S 25/4 31.5/4 20/4 20/4
/
7 Rated peak withstand current kA 63 80 50 50
/
8 Extension mode - Top expansion Top expansion Top expansion Top expansion
Top expansion
9 Mechanical life Main switch Time 10000 5000
5000
Earthing switch Time 3000 3000
3000
Disconnecting switch Time 3000 /
/
10 Arc extinguishing mode - Vacuum
11 Rated insulation level
 
1min power frequency withstand voltage (RMS) Fracture interval kV 48
Alternately and oppositely kV 42
Lightning impulse withstand voltage (peak value) Fracture interval kV 85
Alternately and oppositely kV 75
12 The protection grades - Switch IP67, Cabinet IP4X, Compartment IP2X
13 Life year ≥25
14 Partial discharge
 
pC ≤10
15 Dimensions of switchgear cabinet mm V cabinet: 630A W420×D810×H1800
V cabinet: 1250A W490×D810×H1800
C cabinet: 630A W420×D810×H1800
C cabinet: 1250A W490×D810×H1800
F cabinet W490×D810×H1800
Note: When 630A and 1250A appear in the same section of bus, the cabinet size should be 1250A.

 

►Product features

Excellent performance: the product has been analyzed, calculated and optimized by electric field simulation.

Flexible scheme: there are breaker type, direct-acting type, upper isolated upper grounding structure and lower isolated lower grounding structure, which meet the technical requirements of national grid standardization design and southern grid.

Modular design: it is divided into four modules: switch body, cabinet body, low-voltage box and bus bar. The cabinet body can be designed into complete sets of products with various styles according to customer requirements; Compact structure; Small size, light weight, easy to carry and replace. Unit structure, overhead bus mode, convenient installation, and can realize arbitrary expansion and replacement of units.

Strong environmental adaptability: suitable for areas at an altitude of 5000 meters, cold, low-lying and humid, coastal high salt fog, strong sandstorm and so on.

High degree of intelligence: meet the requirements of smart grid and intelligent operation and maintenance of State Grid and South Grid.

Safe and reliable: the switch adopts three-phase independent split structure, the protection level of the main circuit is IP67, and the overall maintenance-free design; The pole adopts surface arc zinc melting process to realize continuous and reliable grounding of the surface of the insulator; The switch is equipped with LED lights to isolate the fracture, and the three-phase fracture is clearly visible, which improves the safety of product maintenance.

Zhuhai Comking Electric Co., Ltd-China's leading wholesaler of 12kV/17.5 kV/24kV Ring Main Unit, providing efficient and reliable power solutions. Click to learn more about innovative products and upgrade your power system!

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Zhuhai Comking Electric Co., Ltd

Tel:+860756-8527111

Wechat:13928081384

Contact:Customer Care Team

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