| Brand | Xinyouxiang |
| Model NO. | 40.5kV SF6 gas-insulated high-voltage fuse combination load switch |
| Rated voltage | 40.5kV |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Rated short circuit breaking current | 25kA |
| Series | RNL-40.5 |
This 40.5kV switch integrates load switching and fuse protection in an SF6 gas-insulated design, tailored for medium-to-high voltage power distribution systems. The SF6 insulation ensures excellent dielectric performance, compact size, and resistance to harsh environmental factors like dust, humidity, and extreme temperatures.
RNL-40.5 isolation switch meets the requirements of GB3804-2004 "3.6kV~40.5kVhigh voltage AC load switch",“GB16926-1997 AC high voltage load switch, one fusecombination appliance".
Main circuit of high-voltage gas insulated switchgear accessories: 630A-20kA (4S) and 25kA (3S); Mechanical lifespan: 5000 cycles; Grounding circuit: 20kA (2S); Mechanical lifespan: 2000 cycles.
Considerations for the use of environmental conditions
The altitude does not exceed 2000m, the shattering of not more than 8 degrees
The environmental temperature of the product is -40 degrees ~+140 DEG C, the relativehumidity is not greater than 90% per day, and the average is not more than 90% permonth;
The installation site of frequent and violent shock, water vapor, chemical corrosiondeposition, salt fog, dust, dirt and fire, which obviously affect the performance of themechanism, are not suitable for the installation of explosive dangerous installations.
Model composition and meaning
Main technical parameters
| Serial number | content | Company | technical parameter |
|---|---|---|---|
| 1 | Rated frequency | Hz | 50 |
| 2 | Rated current | A | 630 |
| 3 | Rated short-time Withstand current | KA | 20/25 |
| 4 | Rated peak withstand current | KA | 50 |
| 5 | Rated short-circuit duration | s | 4 |
| 6 | Rated short circuit closing current | KA | 50 |
| 7 | Theoretical operation | frequency | 5000 |
Login
