Audited Supplier
High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Vacuum
Fixed/Drawable
Vcb
3
Circuit Breaker
Conventional Circuit Breaker, Overcurrent Protection
ISO9001-2000, CE, CCC, ISO45001:2018/ISO14001:2015
ROOQ/Neutral/OEM
Wooden Case
IEC, GB, CE
China
Product Description
VS1 Indoor Vacuum Breaker Product Description
VS1 indoor medium voltage Vacuum Circuit Breaker is a three-phase AC 50Hz ,rated voltage 6KV,12KV,24KV switch equipment of power system.
Breaker adopts the integral design of the actuating mechanism and the breaker body, which can be used as a fixed installation unit or as an individual VCB carriage together with handcart. They have a long life expectancy. There is no adverse effect on the vacuum, even from frequent switching of operating and short-circuit currents.
Advantages
VS1 type VCB consist of operating mechanism and arc-extinguish chambers in front-back arrangement, its main conductive circuit is floor model structure. The vacuum arc-extinguish chamber is fixed in a vertical cannular insulation column made of epoxy resin by APG technology, therefore with high anti-creepage function. Such structure design greatly reduces the accumulation of dusts on the surface of vacuum arc- extinguish chamber, it not only can prevent the vacuum extinguish chamber from outside influences, but also can ensure to present high resistance state against the voltage effect even in warm-wet climate or heavy pollution environment.
1 - with reliable interlock functions, suitable for frequent operation
2 - low noise and energy consumed
3 - simple and robust construction.
4 - high operating reliability
4 - high operating reliability
5 - mechanical durability of switch : 20000 times, etc
Fields of application
1 - Transformers and distribution substations
2 - Generator control and protection
3 - Capacitor bank control and protection, etc
Mechanical parameters
| No. | Item | Unit | Date | |||||||
| 1 | Rated voltage | KV | 12 | 24 | ||||||
| 2 | Clearance between open contacts | mm | 11±1 | 13±1 | ||||||
| 3 | Over travel of moving contact | 3.5±0.5 | 3.5±0.5 | |||||||
| 4 | Three poles asynchronous time at opening | ms | ≤2 | ≤2 | ||||||
| 5 | Moving contact bounce time at closing | ms | ≤2 | ≤2 | ||||||
| 6 | Average opening speed | m/s | 0.9-1.2 | 0.9-1.2 | ||||||
| 7 | Average closing speed | 0.6-0.8 | 0.6-0.8 | |||||||
| 8 | Connecting pressure of close contacts | N | 20kA | 25kA | 31.5kA | 40kA | 20kA | 25kA | 31.5kA | 40kA |
| 2000±200 | 2400±200 | 3100±200 | 4250±200 | 2000±200 | 2400±200 | 3100±200 | 4750±200 | |||
Main characteristics
| No. | Item | Unit | ||||||
| 1 | Rated voltage | KV | 12 | 24 | ||||
| 2 | Power frequency withstand voltage | 42 | 65 | |||||
| 3 | Lightning impulse voltage(peak value) | 75 | 125 | |||||
| 4 | Frequency | Hz | 50 | 50 | ||||
| 5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 1250 1600 2000 2500 3150 4000 | 630 1250 | 630 1250 1600 2000 | 1600 200 2500 |
| 6 | Short circuit breaking current | kA | 20/25 | 31.5 | 40 | 25 | 25/31.5 | 31.5/40 |
| 7 | Thermal stability current | kA | 20/25 | 31.5 | 40 | 25 | 25/31.5 | 31.540 |
| 8 | Dynamic stable current | kA | 50/63 | 80 | 100 | 63 | 80 | 100 |
| 9 | short-circuit making current | kA | 50/63 | 80 | 100 | 63 | 80 | 100 |
| 10 | Rated current breaking time | Times | 20000 | 20000 | ||||
| 11 | Short circuit breaking current times | Times | ≤50 | ≤30 | ||||
| 12 | Operation voltage | V | AC/DC 110/220 | AC/DC 110/220 | ||||
| 13 | Input power | W | 70 | 70 | ||||
| 14 | Storage time | s | ≤15 | ≤15 | ||||
| 15 | 3 phase non-synchronous | ms | ≤2 | ≤2 | ||||
