| Brand | Switchgear parts |
| Model NO. | 40.5kV SF6 gas insulated high-voltage gas filling cabinet grounding switch |
| Rated voltage | 40.5kV |
| Rated normal current | 630A |
| Rated frequency | 50/60Hz |
| Series | RNJ-40.5 |
This 40.5kV grounding switch is designed for high-voltage gas filling cabinets, leveraging SF6 gas insulation to deliver safe, reliable circuit grounding in medium-to-high voltage systems. Its sealed structure ensures robust performance against dust, moisture, and extreme temperatures, while minimizing installation space.
Equipped with multi-level mechanical interlocks, it strictly prevents improper grounding (e.g., live grounding) to protect maintenance personnel and equipment. Ideal for substations, industrial power grids, and renewable energy facilities, it complies with IEC 62271 and GB standards. With a long mechanical lifespan and low maintenance needs, it provides stable grounding protection for high-voltage gas-insulated cabinet systems.
1, grounding switch split: the operator into the grounding switch operation hole, reverseneedle rotation can split gate. At this time, the center of the panel is divided into closing andclosing signs, and ( the lower door plate is locked.
2, the load switch operating hole, clockwise rotation (electric operation press the closingbutton) can be switched on. At this time, the dividing and matching indicator forms.
Two, power failure
1, load switch split: press the mechanical operation button below the panel (electricoperation press down the gate button) to switch the load switch. At this point, the closingand closing indicator & appears.
2, grounding switch closing: the operator into the grounding switch operating hole.clockwise rotation can be switched on. At this time, the dividing and matching indicatorⓍforms.
Be careful:
1, such as the power supply from the upper end of the switch, the live display switch closedand extinguished, shiny.
2, such as power from the lower end of the switch into, the live display is always brightWhen the power supply, grounding switch and prohibition!lt is suggested that three melting pipes should be replaced at the same time when thedissolving tube is replaced.
Model composition and meaning
Main technical parameters
Serial number |
content |
Company |
technical parameter |
1 |
Rated voltage |
kV |
40.5 |
2 |
Rated frequency |
Hz |
50 |
3 |
Rated current |
A |
630 |
4 |
Rated short-time Withstand current |
KA |
20/25 |
5 |
Rated peak withstand current |
KA |
50 |
6 |
Rated short-circuit duration |
s |
4 |
7 |
Rated short circuit closing current |
KA |
50 |
8 |
Theoretical operation |
frequency |
10000 |
9 |
Main circuit resistance |
μΩ |
≤35 |
Outline of earthing switch and mounting dimensions
