1. Description
CKSS Ⅱ solid insulated switchgear is a new kind of intelligent, environment-friendly switchgear with highly safety operation. It is applicable to secondary power distribution system in the voltage range up to 24KV.
2. Technical Feature
---- Without SF6 gas, green & environment friendly
---- Operating mechanism is at the front side and primary circuit is at the backside. Easily for operation, debug and test.
---- Busbar is at the top side. Easily for assembly if extending more units at left/right side.
---- Incoming CB - DS/ES
---- Watch the DS physical open contacts from interior lighting in the cabinet
---- Small size & flexible expansion
---- Safe & reliable
---- Spring operating mechanism with dual anti-misoperation system
---- Fuse with sealed isolation
3. Working Condition
3.1 Altitude: ≤4000m
3.2 Ambient air temperature: -40℃~+45℃
3.3 Max. average daily temperature: +40℃ Max. annual average temperature: +35℃
3.4 Wind speed: ≤34m/s
3.5 Relative air humidity: ≤95% ( +25℃)
3.6 Ground gradient: ≤5°
3.7 Earthquake intensity: ≤magnitude 8
3.8 Applicable in the places without fire, without explosion risk, without chemical corrosive and without violent vibration
(Exceeding above working condition is available as customized product)
4. Standard
---- GB/T11022-1999
---- GB3906-2006
---- GB1984-2003
---- GB3804-2004
---- GB16926-2009
---- GB1985-2004
---- IEC60265-1-1998
5. Technical Data
Technical Data | Module V | Module C | Module F | |||||
Rated voltage(KV) | 12 | 24 | 12 | 24 | 12 | 24 | ||
Rated frequency(Hz) | 50/60 | 50/60 | 50/60 | |||||
Rated current(A) | 630 | 630 | 630 | 630 | ||||
Rated short-circuit breaking current(KA) | 25 | 20 | / | 31.5 | ||||
Rated breaking cable charging current(A) | / | 10 | 10 | |||||
Rated short-time withstand current(KA) | 25 | 20 | 20 | / | ||||
Rated short-time withstand time(S) | 4 | 4 | / | |||||
Rated peak withstand current(KA) | 63 | 50 | 50 | / | ||||
Rated short-circuit making current(KA) | 63 | 50 | 50 | / | ||||
Rated breaking transfer current(A) | / | / | 3150 | |||||
Rated insulating level | Rated lighting impulse withstand voltage(kV) | phase-to-phase phase-to-earth | 75 | 95 | 75 | 95 | 75 | 95 |
open contact | 85 | 110 | 85 | 110 | 85 | 110 | ||
Rated power frequency withstand voltage(kV/ min) | phase-to-phase phase-to-earth | 42 | 65 | 42 | 65 | 42 | 65 | |
open contact | 48 | 79 | 48 | 79 | 48 | 79 | ||
Auxiliary control circuit | 2 | 2 | 2 | |||||
Mechanical life (times) | 10000 | 10000 | 10000 | |||||
Main circuit resistance (μΩ) | ≤140 | ≤140 | ≤700 |