KYN61-40.5 metal-enclosed switchgear manufactured by Metalworking is used for power distribution and control. The vacuum circuit breaker manufactured by metalworking is used internally, the overall operation of the equipment is stable, and the electrical life is long. Not only has many users in China, but also has a high reputation in the world.
VS1-40.5 Indoor Vacuum Circuit Breaker
Rating voltage: 40.5kV
Rating current: 630 1250 1600 2000 2500A
Rating short circuit breaking current: 20 25 31.5KA
Mechanical life: no less than 20,000 times
Scope of application
This type of switchgear is designed according to the armored metal-enclosed switchgear in GB3906-2006. For a 3-phase AC power system with a rating voltage of 40.5kV and a rating frequency of 50Hz. It is used to receive and distribute electrical energy and control, protect and detect circuits. In addition to being widely used in general power systems, it can also be used in frequent operations. place.
Working environment:
*Air temperature: -25℃~+40℃
* Humidity: Monthly humidity 95%; Daily humidity 90%.
* Altitude no more than 2500m
* Ambient air not apparently polluted by corrosive and flammable gas, vapor, etc.
* No frequent violent shake
Technical data
| Items | Unit | Data |
| Voltage | KV | 40.5 |
| Frequency | Hz | 50 |
| Current | A | 1250,1600,2000 |
| Short-circuit Breaking Current | KA | 25,31.5 |
| Making Current (Peak) | KA | 63,80 |
| 4s Thermal Stability Current | KA | 25,31.5 |
| Dynamic Current (Peak) | KA | 63,80 |
| Insulation Level | 1min Power Frequency Withstand Voltage (r.m.s) | KV | 95 |
| Lightning Impulse Withstand Voltage (Peak) | KV | 185 |
| 1min Power Frequency Voltage Across the open gap (r.m.s) | KV | 118 |
| Lightning Impulse Withstand Voltage Across the open gap (Peak) | KV | 215 |
| Enclosure Protection Class | | Enclosure IP4X, Between Compartments IP2X |
| Enclosure Dimension (Width*Depth*Height) | mm | 1400*2800*2600
1600*2800*2600 |
| Type of Circuit Breaker | | VCB: ZN85-40.5
SF6 Circuit Breaker |
*Note: order switchgear should provide SLD(Single-line diagram) by customer
Knkong-electric VCB, VS1-40.5 Technical data
| Items | Unit | Date |
| voltage | KV | 40.5 |
| short-time power frequency withstand voltage (1min) | 95 |
| lightning impulse withstand voltage (peak) | 185 |
| frequency | Hz | 50/60 |
| current | A | 1250 1600 2000 2500 4000 |
| short-circuit drop-out current | KA | 25 31.5 |
| short-time withstand current | 25 31.5 |
| short-time continual time | s | 4 |
| peak withstand current | KA | 63 80 |
| short-circuit closing current | 63 80 |
| single/ back-to-back capacitor bank drop-out current | A | 630/400 |
| Opening time (rated volt.) | ms | 35~60 |
| Closing time (rated volt.) | 50~100 |
| Mechanical life | times | 20000 |
| break times for rated short drop-out current | s | 20 |
| operation voltage | V | AC110/220 DC110/220 |
| current of power storing motor | W | 230 |
| Average opening speed | m/s | 1.6~2.0 |
| Average closing speed | 0.5~0.8 |
| operation procedure | | opening-0.3s-closing opening-180s-closing opening |
