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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.
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CKFL-12/24/40.5 Series SF6 Fully Insulated RMU (Ring Main Unit)
- Safety: SF6 insulation medium is adopted, fully insulated and sealed, and the protection level is IP67.
- Economy: compact structure, small volume, modularization and maintenance-free design.
- Excellent performance: after electric field simulation analysis, calculation and optimization.
- Flexible scheme: there are upper isolated upper grounding and lower isolated lower grounding structures to meet the requirements of different schemes.
►Product overview
CKFL-12/24/40.5kV series SF6 fully insulated ring network cabinets are mainly composed of three functional units, namely V unit (circuit breaker unit), C unit (load switch unit) and F unit (load switch-fuse combined cabinet unit). Each combination can be expanded at will on the left and right sides, and arranged at will according to different design schemes to meet different configuration requirements. The gas box is made of imported (high-standard) stainless steel plate, using advanced laser cutting and automatic manipulator welding technology.
CKFL inflatable cabinets are widely used in industrial and civil ring networks 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.
►Technical parameter
| Serial number | Parameter name | unit | C module | F module | V module | ||||||||||||
| Load switch | Combined electrical appliance | Circuit breaker | Circuit breaker | ||||||||||||||
| 1 | Rated voltage | kV | 12 | 24 | 40.5 | 12 | 24 | 12 | 24 | 40.5 | 12 | 24 | 40.5 | ||||
| 2 | Rated frequency | Hz | 50 | 50 | 50 | 50 | |||||||||||
| 3 | Rated current | A | 630 | 125 | 630 | 1250 | |||||||||||
| 4 | Rated cable charging breaking current | A | 20 | 20 | / | / | |||||||||||
| 5 | Rated short-circuit closing current (peak value) | kA | 50 | Depending on the fuse | 50 | 40 | 63 | 63 | 50 | 80 | |||||||
| 6 | Rated short-circuit breaking current | kA | / | Depending on the fuse | 20 | 16 | / | / | / | / | |||||||
| 7 | Rated short-term withstand current | kA | 50 | / | 20 | 16 | 25 | 25 | 20 | 31.5 | |||||||
| 8 | Rated interrupting transfer current | A | / | 1700 | / | / | / | / | / | / | |||||||
| 9 | Rated insulation level | 1min power frequency withstand voltage | Ground-to-ground and phase-to-phase |
kV | 42 | 50 | 95 | 42 | 50 | 42 | 50 | 95 | 42 | 50 | 95 | ||
| 10 | Break | kV | 48 | 60 | 118 | 48 | 60 | 48 | 60 | 118 | 48 | 60 | 118 | ||||
| 11 | Rated lightning impulse voltage | Ground-to-ground and phase-to-phase |
kV | 75 | 125 | 185 | 75 | 125 | 75 | 125 | 185 | 75 | 125 | 185 | |||
| 12 | Break | kV | 85 | 145 | 215 | 85 | 145 | 85 | 145 | 215 | 85 | 145 | 215 | ||||
| 13 | Mechanical life | time | 5000 | 10000 | |||||||||||||
| 14 | Mechanical life of grounding switch | time | ≥3000 | ||||||||||||||
| 15 | SF6 inflation pressure of sealed box (gauge pressure) | Mpa | 0.035-0.040 | ||||||||||||||
| 16 | Annual leakage rate of SF6 gas | / | ≤0.02% | ||||||||||||||
►Product features
Safety: SF6 insulation medium is adopted, fully insulated and sealed, and the protection level is IP67.
Economy: compact structure, small volume, modularization and maintenance-free design.
Excellent performance: after electric field simulation analysis, calculation and optimization.
Flexible scheme: there are upper isolated upper grounding and lower isolated lower grounding structures to meet the requirements of different schemes.
Convenient expansion: both lateral expansion and top expansion can be realized, and the unit can be expanded and replaced at will.
High degree of intelligence: meet the requirements of smart grid and intelligent operation and maintenance of State Grid and South Grid.
Zhuhai Comking Electric Co., Ltd-China's leading of Air insulated ring main unit manufacturer, providing efficient and reliable power solutions. Click to learn more about innovative technologies to help upgrade the power system!
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