Basic Info.
| Model NO. | VAC83-24kV |
| Poles Number | 3 |
| Type | Circuit Breaker |
| Function | Conventional Circuit Breaker |
| Certification | ISO9001-2000, CE, CCC |
| Rated Peak Withstand Current | 50,63,80kA |
| Rated Short-Circuit Breaking Current | 20,25,31.5kA |
| Clearance Between Open Contacts | 12~14 mm |
| Contact Stroke | 3~5mm |
| Mechanical Life (M2) | 10,000(20,000)times |
| Trademark | VACEM |
| Origin | Wenzhou, China |
1.General description
VAC83-24kV series VCB is a new indoor switchgear independently developed by VACEM Co.,Ltd. for 24kV power system.
The optimized modular spring operating mechanism is adopted in the mechanism part, which has high reliability, long service life and free maintenance.
VAC83-24kV series vacuum circuit breaker can be used as the protection and control unit of power equipment for industrial and mining enterprises. It is especially suitable for the worse environment with frequent operation, multiple disconnection of short-circuit.
2.Main technical parameter
| Item | Unit | Data |
| Rated voltage | kV | 24 |
| Rated frequency | Hz | 50 |
| Rated insulation level 1 min power frequency withstand voltage pole to earth | kV | 65 |
| Rated insulation level 1 min power frequency withstand voltage phase | kV | 79 |
| Rated insulation level lightning impulse withstand voltage pole to earth | kV | 125 |
| Rated insulation level lightning impulse withstand voltage phase | kV | 145 |
| Power frequency withstand voltage of secondary circuit | V | 2000 |
| Rated current | A | 630,1250, 1600, 2000, 2500, 3150 |
| Rated short-circuit breaking current | kA | 20, 25, 31.5 |
| Rated short-time withstand current | kA | 20, 25, 31.5 |
| Rated short circuit duration | s | 4 |
| Rated peak withstand current | kA | 50, 63, 80 |
| Rated short-circuit making current | kA | 50, 63, 80 |
| Rated short circuit current breaking times (class E2) | times | 30 |
| Rated single/back to back capacitor bank breaking current | A | 630/400 |
| Clearance between open contacts | mm | 12~14 |
| Contact stroke | mm | 3~5 |
| Allowable wear thickness of contact | mm | 3 |
| Average opening speed | m/s | 1.1~1.6 |
| Average closing speed | m/s | 0.6~1.1 |
| Contact closing bounce time | ms | ≤2 |
| Different phases of contact closing and opening | ms | ≤2 |
| Rebound amplitude of opening contact | mm | ≤2 |
| Opening time (rated voltage) | ms | 20~50 |
| Closing time (rated voltage) | ms | 30~70 |
| Mechanical life (M2) | times | 10,000(20,000) |
| Rated operating voltage | V | AC110/220 DC110/220 |
| Rated operation sequence | | O-0.3s-CO-180s-CO |
3.Product show

4.International fair
