High voltage vacuum circuit breaker with 25kV rated voltage. Rated short circuit switching current is 50kA, 80kA, 100kA. Advantages of vcb breaker are reliable insulation, no pollution and long time free maintenance.
Features:
- Ideal contact material and shape, ensuring low current carrying value and stable contact resistance.
- 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, ideal choice for engineering programs.
Parameter List: (Parameters can be customized)
Model |
ATO-VCB-25 |
Rated voltage |
25 kV |
Maximum operating voltage |
25 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: How to Maintenance Vacuum Circuit Breaker?
This is one of the simplest maintenance techniques. Insulation maintenance applies to the cleaning of all the insulation surfaces. Any soft cloth, such as dry lint-free cloth or dry paper towel can be used to wipe the dust off from the insulation surfaces to ensure it smooth operation.
If wiping is unable to remove dust well, distilled water or a mild solvent can be used to remove. Once wiped, make sure that all the surfaces have completely dried up before placing the circuit breaker into use.
Proper lubrication is required periodically to ensure the overall smooth and correct operation of all the components of a vacuum circuit breaker and VCB maintenance. The gap between relubrication depends on the frequency of the circuit breaker used.
For lubrication, a drop of light machine oil can be used. After lubrication, the circuit breaker needs to be operated several times manually and electrically so that the oil is absorbed into the parts.