- Browse Categories
-
Energy Storage Series
- EV Chargers
- Ring Main Unit Series
- LBS and Recloser
- High & Low Voltage Complete Series
- Distribution Transformers
- Components
- Distribution Automation Terminal Series
- Digital Platform System
- EV Chargers
- Hot Product
- ExhibitionMore>>
-
-
EP 20 concluded, Comking depicted a new vision of the intelligent and sustainable development of the power world
2020 Shanghai International Electric Power Equipment and Technology Exhibition. It has been successfully concluded on December 5~ -
Dry air insulated switchgear debuted at the Asian Power and Electrical Exhibition
From June 6 to 8, 2016, Comking Electric was invited to participate in the 2016 Asian Power and Electrical and Smart Grid Exhibition.
-
- Contact Us
- Please contact our customer care team for customized services.
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!