VD4/R-SEC..., Circuit Breakers
Switchgear and Components
Circuit Breakers
ABB SPA - POWER PRODUCTS DIVISION (DNV USE: Not for invoicing), Dalmine (Bg), Italy
Dalmine (Bg), Italy
VD4/R-SEC...
Product Description
Vacuum Circuit-Breakers lateral operating mechanism, for UniSec switchgear Type: VD4/R-SEC… Ratings Rated voltage Ur 12kV 17,5kV 24kV Rated normal current (40°C) Ir 630A, 800A 630A, 800A 630A Rated lightning impulse withstands voltage Up 75kV 95kV 125kV Rated power-frequency withstands voltage Ud 28kV 38kV 50kV Rated frequency 50/60Hz Rated short-circuit breaking capacity Isc up to 25kA up to 21kA up to 20kA Rated short time withstand current (3 s) Ik up to 25kA1 up to 21kA up to 20kA Rated short-circuit making current (at 60 Hz) Ip up to 63kA up to 50kA up to 50kA Rated operating sequence O - 0.3 s - CO – 15 s - CO Rated opening time 50 – 75 ms Rated closing time 30 – 60 ms Further ratings and auxiliary equipment acc. manufacturer documentation
Product Ratings
Not Available / To be Updated
Applicable Standards
Not Available / To be Updated