KYN61-40.5 Metal-enclosed switchgear 3P AC 50Hz, rating voltage of
40.5kV can use for power plant, power substation, and power
distribution industry and mining, railway transportation as the
acceptance and distribution of power.
Working environment:
a) Temperature: -25℃~+40℃
b) Humidity: Monthly average 95%; Daily average 90%.
c) Altitude ≤2500m
d) Ambient air not apparently polluted by corrosive and flammable
gas, vapor, etc.
e) No frequent violent shake.
Technical data
| Items | Unit | Data |
| Rating Voltage | KV | 40.5 |
| Rating Frequency | Hz | 50 |
| Rating Current | A | 1250,1600,2000 |
| Rating Short-circuit Breaking Current | KA | 25,31.5 |
| Rating Making Current (Peak) | KA | 63,80 |
| 4s Thermal Stability Current | KA | 25,31.5 |
| Rating Dynamic Current (Peak) | KA | 63,80 |
| Rating 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
Main components characteristics:
VS1-40.5 Indoor Vacuum Circuit Breaker
Voltage: 40.5kV
Current: 630 1250 1600 2000 2500A
Short circuit breaking current: 20 25 31.5KA
Mechanical life: 20,000 times
KNKONG VS1-40.5 Technical data
| Items | Unit | Date |
| Rated voltage |
KV | 40.5 |
| Rated short-time power frequency withstand voltage (1min) | 95 |
| Rated lightning impulse withstand voltage (peak) | 185 |
| Rated freq | Hz | 50/60 |
| Rated current | A | 1250 1600 2000 2500 4000 |
| Rated short-circuit drop-out current | KA | 25 31.5 |
| Rated short-time withstand current | 25 31.5 |
| Rated short-time continual time | s | 4 |
| Rated peak withstand current | KA | 63 80 |
| Rated short-circuit closing current | 63 80 |
| Rated 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 |
| Rated break times for rated short drop-out current | s | 20 |
| Rated operation voltage | V | AC110/220 DC110/220 |
| Rated current of power storing motor | W | 230 |
| Average opening speed | m/s | 1.6~2.0 |
| Average closing speed | 0.5~0.8 |
| Rated operation procedure | | opening-0.3s-closing opening-180s-closing opening |
Knkong Electric has provided 33KV switchgear for the international
market for more than 10 years.
