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Company product introduction
FZW28-12 series outdoor boundary vacuum load switch is suitable for outdoor three-phase AC power distribution system with rated voltage of 15kv and rated frequency of 50Hz. It is used for opening and closing load current and closing short-circuit current.
Suitable for substations, industrial and mining enterprises, and urban and rural automation distribution networks and frequently operated sites.
The demarcation load switch is composed of two parts: FZW28-12 vacuum load switch and controller. It is electrically connected through the air outlet and outdoor sealed control cable. It can reliably determine the zero-sequence current and phase-discontinuity current in milliamperes inside and outside the detection field, and can be suitable for distribution systems with different neutral grounding modes.
Technical Data Sheet
|2||Rated insulation level||1min power frequency withstand voltage||KV|
|Lightning impulse withstand voltage||Wet||34|
|5||Rated delay withstand current and duration||KA/4S||16||20|
|6||Rated peak withstand current||KA||40||20|
|7||Rated short-circuit current||KA||40||50|
Conditions of Use:
3.Earthquake intensity:Below level 8.
4.Wind pressure: ≤700Pa (equivalent to wind speed 34m/s).
5. No fire, explosion, serious filthy, chemical corrosion and violent vibration of places.
6.Environment humidity: month average relative humidity ≤90％, daily average relative humidity ≤95％.
7.Customers have other special requirements, can be in order to put forward, our company can offer most satisfied.