The subject of the invention is a rotary switch-disconnector with a double, serial clearance during the disconnection of electric contacts.
A rotary switch-disconnector comprises a rotary shaft (1) with at least one bushing (2) with main movable contacts (12) and movable arcing contacts (13), located at the ends of the body (10) of the bushing (2).
A mechanical switching device which, in the open position, complies with the requirements specified for isolation.
A mechanical switching device which, in the open position, complies with the requirements specified for the isolating function.
The invention relates to a load disconnecting circuit with a housing that has a first housing section, which houses the drive, and has a second housing section, which houses a fixed contact element and a longitudinally extended moving contact element.
To this end, the three-position load-break switch (4) for the transformer tap is fitted with HH fuses (S) and a second, three-pole grounding switch (13) located behind the latter.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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