Item Name: FZRN25-12D/T series Indoor HV Vacuum Load Break Switch And Fuse Combination Apparatus
FZN25/12T630-20 type indoor AC HV Load switch in an indoor device of three-phase AC 50Hz and rated voltage 12KV. It is applied to the sited of distribution substation of industrial and mining enterprises and substation etc, used for protection and controlling electric facilities. On and off load current, closd loop current, no-load transformer and cable charging current. The spring storage operation mechanism can both operated by dependent manual and power to realize remote control.
FZRN25-12D/T2000-31.5 type indoor AC HV vacuum load break switch and fuse combination apparatus is an indoor device of three-phase AC 50Hz and rated voltage 12KV, It is applied to the sites of distribution substation of industrial and mining enterpises and substation et, used for load control and short circuit protection, The spring storage operation mechanism can both operate by dependent manual and power to realize remote control.
FZN25/12T630-20 type indoor AC HV Load switch in an indoor device of three-phase AC 50Hz and rated voltage 12KV. It is applied to the sited of distribution substation of industrial and mining enterprises and substation etc, used for protection and controlling electric facilities. On and off load current, closd loop current, no-load transformer and cable charging current. The spring storage operation mechanism can both operated by dependent manual and power to realize remote control.
FZRN25-12D/T2000-31.5 type indoor AC HV vacuum load break switch and fuse combination apparatus is an indoor device of three-phase AC 50Hz and rated voltage 12KV, It is applied to the sites of distribution substation of industrial and mining enterpises and substation et, used for load control and short circuit protection, The spring storage operation mechanism can both operate by dependent manual and power to realize remote control.
| No. | Item | Unit | Data | ||
| FZN25-12D/T630-20 | FZN25-12D/T630-20 | ||||
| 1 | Rated Voltage | kV | 12 | ||
| 2 | Rated Current | A | 630 | 200 | |
| 3 | Rated Frequency | Hz | 50 | ||
| 4 | Rated insulating level | 1min. PF withstand voltage | kV | Arcing chamber gaps to earth phase to phase 42 across open contacts | |
| Lightning impluse withstand voltage(peak) | kV | to earth phase to phase 75 across open contacts 85 | |||
| 5 | Rated Short-circuit withstand current | kA | 20 | ||
| 6 | Rated short-curcuit duration | S | 4 | ||
| 7 | Rated peak withstand current | kA | 50 | ||
| 8 | Rated active load breaking current | A | 630 | ||
| 9 | Rated breaking current of closed-loop | A | 630 | ||
| 10 | Rated breaking current of charging cable | A | 10 | ||
| 11 | Rated breaking no-load transformer capacity | kVA | 1600 | ||
| 12 | Rated short-circuit breaking current | KA | - | 31.5 | |
| 13 | Rated breaking transfer current | A | 2000 | ||
| 14 | Fuse model | SDLAJ-12 SFLAJ-12 | |||
| 15 | Output power of impinger | J | 2-5 | ||
| 16 | Rated short-circuit making current | kA | 50 | 80(prospective peak value) | |
| 17 | Rated short-time withstand current-earthing switch | kA | 20 | ||
| 18 | Rated short-circuit duration of earthing switch | S | 2 | ||
| 19 | Rated peak withstand current-earthing switch | kA | 50 | ||
| 20 | Rated voltage of auxiliary loop | V | ≈ 220 | ≈ 110 | |
| 21 | Mechanical life | times | 10000 | ||
