FZN64 high-voltage load switch is a kind of function between high voltage circuit breaker and high voltage isolation switch electric appliances, high voltage load switch is often used with high voltage fuse series; Used to control the power transformer. High voltage load switch has a simple arc extinguishing device, because it can break a certain load current and load current. But it can't disconnect short-circuit current, so it generally used with high voltage fuse series, with the help of a fuse for short circuit protection.
1. The vacuum bubble is installed in the epoxy resin insulation cylinder, and the insulation performance is stable.
2. There are obvious breaking points and high breaking capacity.
3. The isolation knife is mechanically interlocked with the load switch and the cabinet door.
4. The novel interlocking mechanism of the cabinet door lock automatically meets the requirements of "five preventions".
5. H-type high breaking vacuum switch can break 20kA short-circuit current. With the protection device, various protection functions can be realized.
The rated voltage
Rated insulation level
Voltage withstand 1min power frequency
Arc extinguishing chamber fracture 30; To the ground, interphase 42; Isolation fracture 48
Lightning shock withstand voltage
To the ground, phase 75; Isolation fracture 85
Rated dynamic stability current (peak)
4S heat stabilized current
Rated active load breaking current
Rated closed-loop breaking current
Rated cable charging break current
Turn off the no-load transformer capacity
Rated short circuit breaking current
Rated transfer current, rated transfer current
Impactor outputs energy
Rated short circuit closing current
Ground switch rated dynamic stable current
2S thermal stability current of the ground switch
Rated voltage of the auxiliary circuit
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