Embedded poles for 24KV vacuum circuit breaker
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Embedded poles for 24KV vacuum circuit breaker
Embedded pole for 24KV vacuum circuit breaker
VEP1250/24-25
VEP1250/24-31.5
VEP1600/24-31.5
ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS | |
1.Rated Voltage | 24KV |
2.Rated Current | 1250/1600A |
3.Rated Frequency | 50Hz |
4.Rated Short-circuit Breaking Current | 25/31.5KA |
5.Operations of short-circuit breaking current interruption | 30次 |
6.Rated Short-circuit Making Current(Peak) | 63/80KA |
7.Rated Short-time Withstand current(4S) | 25/31.5KA |
8.Rated Single Capacitor Bank Breaking Current* | 630A |
9.Rated back-to-back capacitor bank breaking current* | 400A |
10.Short-time(1min)power-frequency withstand voltage | 79KV |
11.Rated lighting impulse withstand voltage(peak) | 145KV |
12.Circuit Resistance at Rated Contact Force | ≤20μΩ |
13.Mechanical Life | 10,000Operations |
14.Contact Closing Force due to Bellow and Atmospheric | 120±50N |
15.Counterforce at rated contact force | 200±50N |
16.Contact Erosion Limit | 3mm |
17.Shelf Life | 20Years |
18.Part discharge | ≤5pc |
19.Rate operating sequence | O-0.3s-CO-180s-CO |
MECHANICAL REQUIREMENTS(REF. VCB) | |
1.Contact Stroke | 13±1 mm |
2.Contact connection stroke | 4±1 mm |
3.Average opening speed | 1.3±0.2m/Sec |
4.Average closing speed | 0.6±0.2m/Sec |
5.Added contact force | 2500/3150±200N |
6.Bounce duration of contact closing | ≤2ms |
7.Out of simultaneity of contact closing and opening | ≤1ms |
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