FZN21-12D / T630-20 is three phase AC 50Hz indoor high-voltage switch equipment, which is suitable in the rated voltage 12kV FZN21-12D / T630-20 is three phase AC 50Hz indoor high-voltage switch equipment,which is suitable in the rated voltage 12kV electrical power systems. The switch hascapability of making, load bearing, breaking load and overloading current. It can also breakor make the idling long-line, the transformer and the capacitor.
Item | Unit | Data |
Rated voltage | KV | 12 |
Rated frequency | Hz | 50 |
Rated current | A | 630 |
Rated active load dropout current | A | 630 |
Rated closed loop dropout current | A | 630 |
Five percent of rated active load dropout current | A | 31.5 |
Rated cable charging dropout current | A | 10 |
Rated idling volt transformer capacity | KVA | 1250kvA |
1min power frequency withstand voltage (vacuum fractureface to faceto land/isolation fracture) | KV | 42/48 |
Lightning impulse withstand voltage (vacuum fractureface to faceto land/isolation fracture) | KV | 75/85 |
Rated short-time withstand current (thermo stabilization) | KA/S | 20/4 |
Rated peak value withstand current (move stabilization) | KA | 5 |
Rated short-circuit close current | KA | 50 |
Rated current break and close time | Times | 10000 |
Mechanical life-span | times | 10000 |
Vacuum arc chute contactor permitted abrasion thickness | mm | 2 |
Manual operation torque | nm | ≤200 |
FZN21-12/T630-20 Series AC HV Vacuum Load Break Switch
