VD4-EL, Circuit Breakers
Switchgear and Components
Circuit Breakers
ABB SPA - POWER PRODUCTS DIVISION (DNV USE: Not for invoicing), Dalmine (Bg), Italy
Dalmine (Bg), Italy
VD4-EL
Product Description
Type: VD4 – with EL oper. Mech. Medium voltage vacuum circuit breakers. VD4/P: Withdrawable version designed to be connected with the compartments of ABB UniSafe or UniGear switchboards. Ratings Rated voltage Ur 12kV 17,5kV Rated normal current (40°C) Ir 630A…4000A1) 630A…4000A1) Rated lightning impulse withstands voltage Up 75kV 95kV Rated power-frequency withstands voltage Ud 28kV 38kV Rated frequency 50/60Hz Rated short time withstand current (3 s) Ik 31.5…50kA 31.5…50kA Rated short-circuit making current Ip 80…125kA 80…125kA Rated operating sequence O - 0.3 s - CO – 15 s - CO 1) 4000A only with forced ventilation of the switchgear Further ratings and auxiliary equipment (e.g. smart coils) acc. manufacturer documentation.
Product Ratings
Not Available / To be Updated
Applicable Standards
Not Available / To be Updated