VSG/C-12KV indoor high voltage mv vacuum circuit breaker VCB for switchgear
Product Description
VSG/C-12KV indoor high voltage vacuum circuit breaker for Switchgear
Indoor Switchgear type VSG Vacuum Circuit Breaker is applicable to 12kv power system, as a protection and control unit of power equipment, industrial and mining enterprises, it can be used for switching loads of various kinds and frequent operation, repeatedly breaking short-circuit current situation. The product adopts new type of Circuit breaker, a VSG part can adopt the international brand of embedded pole, the vacuum interrupter and the main circuit part is fixedly sealed into a whole, protect the interrupter from collision, dust and gel image, strong ability to adapt to the environment, greatly reduces the cost of operation and maintenance. The real implementation of the product part of a maintenance free, low maintenance Operation Mechanism; Operating Mechanism and Circuit Breaker body design, after type test, E2 level, M2 level of mechanical electrical life.
Main technical data
| No. | Item | Unit | Data | |||||
| * | Type | / | Insulating cylinder
Epoxy Resin Embedded poles Nylon embedded poles | Upper outlet
Side outlet | ||||
| 1 | Rated voltage |
KV | 12 | |||||
| 2 | Rated short time power frequency withstand voltage(a min) | 42 | ||||||
| 3 | Rated lightning impulse withstand voltage(peak) | 75 | ||||||
| 4 | Rated frequency | Hz | 50 | |||||
| 5 | Rated current | A | 630,1250 | 630,1250
| ||||
| 6 | Rated short-circuit breaking circuit |
kA | 25 | 31.5 | ||||
| 7 | Rated short time withstand current | 25 | 31.5 | |||||
| 8 | Rated short-circuit duration | s | 4 | |||||
| 9 | Rated peak withstand voltage |
kA | 63 | 80 | ||||
| 10 | Rated short-circuit closing current | 63 | 80 | |||||
| 11 | Power frequency withstand voltage of secondary circuit(1 min) | V | 2000 | |||||
| 12 | Rated single/back-to-back capacitor bank breaking current | A | 630/400 | |||||
| 13 | Switching time |
ms | 20-50 | |||||
| 14 | Closing time | 35-70 | ||||||
| 15 | Mechanical life |
time | M2 level
10000(630-125-/25-31.5) | |||||
| 16 | Electrical life | E2 level | ||||||
| 17 | Moving and fixed contacts allow wear accumulation thickness | mm | 3 | |||||
| 18 | Rated closing operating voltage | V | AC110,AC220
DC110,DC220 | |||||
| 19 | Rated breaking operating voltage | |||||||
| 20 | Rated voltage of energy storage Motor | |||||||
| 21 | Rated power of energy storage motor | w | 90 | |||||
| 22 | Storage time | s | ≤15 | |||||
| 23 | Contact distance | mm | 11±1 | |||||
| 24 | Over stroke | 3±1 | ||||||
| 25 | Contact closing bounce time |
ms | ≤2 | |||||
| 26 | Different phases of three-phase switching | ≤2 | ||||||
| 27 | Average breaking speed |
M/s | Contact opening 6mm | 0.9~1.7 | 0.9~1.7 | |||
| 28 | Average closing speed | Contact closing 6 mm | 0.6~1.0 | 0.6~1.0 | ||||
| 29 | Switching rebound amplitude | mm | ≤3 | |||||
| 30 | Dominant loop resistance | μΩ | ≤45(630)
≤35(1250A) | |||||
| 31 | Contact closing pressure | N | 3100~3700 | |||||
| 32 | Rated order of operation | O-0.3s-CO-180s-CO | ||||||
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Product Categories : Vacuum Circuit Breaker > 12KV vacuum circuit breaker
