FN12-12 Series Indoor High Volgate Break Switch 1 ISO9001:2000 2 12KV 50HZ 3 Safty,Perfect,Loss energy loss
Indoor High Voltage Load Break Switch 12/24kV
FN12-12D and FN12-12DRSwitchgear is a rated voltage of 12kV, rated frequency 50Hz three-phase high-voltage switchgear for the division and load current, Loop current, no load transformer and cable charging current, short circuit current of the Closing, fuse may short-circuit breaking current, with equipment grounding switch load switch that can withstand short-circuit current, mainly for three-phase power s../upply ring network city distribution and industrial power equipment for load control and short circuit protection.
Using condition
a.ambient temperature -25oC-+40oC
b.elevation≤1000m
c.humidity:daily average humidity≤95%,monthly≤90%
d.the earthquake does not exceed degree 8
e.no fire,explsion,chemical errosion..
f.pollution:level 2
Main technical parameters
| Serial number | Project | Unit | FN12-12/630 | FNR12-12/100-31.5 |
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated Current | A | 630 | 1250 |
| 4 | Lightning impulse withstand voltage | kV | On the ground and 75 isolation fracture85 | |
| 5 | 1minFrequency withstand voltage | kV | 42 on the ground and white, isolated fracture48 | |
| 6 | Rated thermal current | kA | 20(4S) | |
| 7 | Rated dynamic current | kA | 50 | |
| 8 | Rated short circuit making current (peak) | kA | 50 | 50 |
| 9 | Rated short-circuit breaking current (projected) | kA | 31.5 | |
| 10 | Rated transfer current | kA | 1.5 | |
| 11 | Operating Agency | KVA | 1250 | |
| 12 | Rated cable charging current | A | 10 | |
| 13 | Mechanical life | Times | 4000 | |
| 14 | Fuse switches gate trigger load time | S | <0.06 | |
| 15 | Ground thermal current switch | kA | 20(4S) | |
| 16 | Grounding switch dynamic current (peak) | ka | 50 | |
| 17 | Control circuit supply voltage | |||
Indoor High Voltage Load Break Switch 12/24kV
