Description
High quality 33kv vcb rated current is 630A, 1000A, 2000A, 2500A. Vacuum breaker switch can be used about 20000 times. Advantages of no pollution and long time free maintenance.
Features:
- Ideal contact material and shape, ensuring low current carrying value and stable contact resistance.
- 33kV vacuum circuit breaker with with integrated design of main conductive circuit made of compound isolation material and operating mechanism.
- VCB circuit breaker with few components and parts, compact and logical structure, assuring more reliable and safer operation.
- Compact design enables the breaker to be installed within almost all switchgears.
- Superior cost performance, 33kv vcb breaker is the ideal choice for engineering programs.
33kv Indoor Vacuum Circuit Breaker Specifications: (Parameters can be customized)
| Model | ATO-VCB-33 | |||
| Rated voltage | 33 kV | |||
| Maximum operating voltage | 33 kV | |||
| Rated current | 630A/1000A/1250A | 1250A/1600A/2000A/2500A | 1250A/1600A/2000A/3150A | 2000A/2500A/3150A |
| Rated short circuit breaking current | 20kA/25kA | 31.5kA | 40kA | 50kA |
| Rated short circuit closing current | 50kA/63kA | 80kA | 100kA | 125kA |
| Rated peak withstand current | 50kA/63kA | 80kA | 100kA | 125kA |
| 4S Rated short-time withstand current | 20kA/25kA | 31.5kA | 40kA | 50kA |
| Rated insulation level | power frequency withstand voltage（rated open circuit before and later）: 42 kV | |||
| impulse withstand voltage（rated open circuit before and later）: 75 kV | ||||
| Mechanical life | 20000 times | |||
| Rated closing voltage of operating mechanism (DC) | 110 V, 220 V | |||
| Rated switching voltage of operating mechanism (DC) | 110 V, 220 V | |||
| Contactor torque | 11±1 | |||
| Exceed range(the compress length of contact spring) | 4±0.5 | |||
| Max.bouncing duration | ≤ 2 | |||
| Average opening speed | ≤ 0.05 | |||
| Average closing speed | ≤ 0.08 | |||
| Opening time | ≤ 50 | |||
| Closing time | ≤ 100 | |||
| Accumulative allowable wear thickness of dynamic and static contacts | 3 mm | |||
| Certification | CE | |||
| Warranty | 12 months |
Dimensions: (Unit: mm)
Schematic Diagram:
Details
Tips: Troubleshooting of VCB
In the troubleshooting process, two types of problems are mainly detected, here is the solution.
Closing Problem. In the mechanism or control circuit, if a part cannot be closed, it needs to be replaced. If there is a closing sound, but the breaker is still open, then check the alignment or go for replacement. If there is no loss of signal when closing, then realignment or replacement is required.
Tripping Operation. If the operating mechanism or control circuit parts cannot trip, go for replacement. If there is a tripping sound, but the circuit breaker is still closed, it needs to be replaced. Similarly, replacement is the solution for a trip without tripping signal too.
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