| Customization: | Available |
|---|---|
| Application: | Electronic, Instrument, Position Sensor, Audio, Lighting |
| Phase: | Three |
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Indoor high-voltage AC vacuum load switch-fuse combination("combination" for short) is used in power systems with an AC frequency of 50 Hz and a rated voltage of 40.5 kV to break load currents, overload currents and short-circuit currents. It particularly applies to the places needing control, protection for oil-free, maintenance-free, frequently-operated and ring network power supply units and terminal power supply transformers.
Ambient temperature:-40ºC-+40ºC (below 35ºC within 24 hours)
Relative humidity:≤95% (daily average) or ≤90% (monthly average)
Altitude:≤1000m
The combined electric apparatus is a three-pole linkage structure
The operation mode of the vacuum arc extinguishing chamber of the combined electric apparatus adopts the electric spring operating mechanism for closing, and the tripping electromagnet for opening, and can also be used for manual closing and opening
A reliable mechanical interlock device is installed between the vacuum interrupter, the isolation switch and the ground switch of the combined electric appliance, and the isolation switch and the ground switch are operated by the same shaft
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