Gidin grounding switch na 40.5kV wanda ake kawo da shi a gas-filled cabinets, yana amfani da SF6 gas insulation don bayar da safe da reliable circuit grounding a cikin systems na medium-to-high voltage. Karkashinsa ta zama ce tana iya yi aiki da dukkan dust, moisture, da kuma hawa mai kyau, wanda ke haɗa da cutar space na installation.
Ake kawo da multi-level mechanical interlocks, wanda ke fuskantar aiki mai lafiya (misali, live grounding) don inganta masu aiki da kuma zaɓuɓɓuka. Yana da muhimmanci a matsayin substations, industrial power grids, da kuma renewable energy facilities, tana ci gaba da IEC 62271 da kuma standards na GB. Ta taka mechanical lifespan mai tsawo da buƙata mai yawa, tana ba da stable grounding protection a cikin high-voltage gas-insulated cabinet systems.
1, grounding switch split: operator ya zama a hole na grounding switch, rotation ne a kan reverse can split gate. A wannan lokacin, center of the panel ya zama divided into closing and closing signs, and (lower door plate is locked.
2, load switch operating hole, clockwise rotation (electric operation press the closing button) can be switched on. A wannan lokacin, dividing and matching indicator forms.
Two, power failure
1, load switch split: press the mechanical operation button below the panel (electric operation press down the gate button) to switch the load switch. At this point, the closing and closing indicator & appears.
2, grounding switch closing: operator ya zama a hole na grounding switch operating. Clockwise rotation can be switched on. A wannan lokacin, dividing and matching indicator Ⓧ forms.
Be careful:
1, such as the power supply from the upper end of the switch, the live display switch closed and extinguished, shiny.
2, such as power from the lower end of the switch into, the live display is always bright when the power supply, grounding switch and prohibition! It is suggested that three melting pipes should be replaced at the same time when the dissolving 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
