Search This Supplers Products:High voltage electrical productsVACUUM INTERRUPTERVACUUM CONTACTORVACUUM CIRCUIT BREAKERVCB SWITCHGEAR PANELSUBSTATION
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Briefing
Detailed
Items |
Data |
Rated voltage |
27KV |
Rated current |
800A |
Rated frequency | 50/60Hz |
Rated short-time (1 min) power -frequency withstand voltage | *60KV |
Rated lightning impluse withstand voltage (peak) | *125KV |
Rated short-circuit breaking curremt | 16KA/12.5KA |
Operations of short- circuit breaking current interruption | 15-20%,88;45-55%,112;90-100%,32 |
Rated short-circuit making current | 40KA/31.5KA |
Rated peak withstand current | 40KA/31.5KA |
Rated short -time withstand current(3s) | 16KA/12.5KA |
Rated breaking current of line charging | 5A |
Rated cable-charging breaking current | 25kA |
Rated breaking current of no-load transformer | 22KA |
Circuit resistance at minimum added force | ≤25μΩ |
Mechanical life | 10000 times |
Closing force due to bellows and atmosphere | 60± 30N |
Force required to hold contacts open at full stroke | ≤155N |
Contact erosion limit | 3mm |
Shelf life | 20 years |
Temperature endurance of lead bushing of moving | 170℃ |
Rated operating sequence | O-0.3s-CO-2s-CO |
Items |
Value |
Rated contact stroke | 12±0.5mm |
Contact connection stroke | 4±1mm |
Average opening speed(0-6mm stroke) | 1.2±0.2m/s |
Average closing speed(6mm-contact making) | 0.8±0.2m/s |
Added force on closed contacts | 1500~2000N/670~870N |
Max. bouncing duration | ≤2ms |
Out of simultaneity of contact closing and opening |
≤1ms |
Max. rebound distance |
≤2mm |
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