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HVDC Switches
Grid Solutions (GE Vernova / Kelman)
Categories:
Inverter & Converter Systems
Model Overview
HVDC Switches are designed to close and open very rapidly in case of fault or for maintenance and may have to commutate load current while maintaining the flow of power within a DC substation and its availability. All HVDC switches are activated by a spring-spring mechanism and are derived from conv...
Technical Specifications
BpsBypass Switch; can act as HVDC by-pass across converter valve groups or as a fast acting discharge switch
NbsNeutral Bus Switch; in series with the neutral connection of each pole; used to divert DC current away from a blocked pole to ground
FadsFast Acting Discharge Switch; can act as HVDC by-pass or fast acting discharge switch; fast CO within 300 ms to discharge and re-isolate the pole from ground
GrtsGround Return Transfer Switch; with disconnector configures the HVDC scheme as ground-return or metallic-return monopole; commutates load current from HV conductor to earth path
MrtbMetallic Return Transfer Breaker; used with GRTS to commutate DC load current between earth return and a parallel metallic return path
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