VD4R MV vacuum circuitbreakers for secondary distribution PPMV Product Management VD4R Core technology Upper terminal Vacuum interrupter VI Epoxy resin cylinder Stem Lower terminal ID: 769503
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VD4/R MV vacuum circuit-breakersfor secondary distribution PPMV – Product Management
VD4/R Core technology Upper terminal Vacuum interrupter (VI) Epoxy resin cylinder Stem Lower terminal Flexible connection Contact force spring Push rod Fixing point Operating mechanism connection
VD4/R Vacuum Interrupter (VI) Stem /terminal Twist protection Bellow Interrupter lid ShieldShield Contacts Stem/Terminal Ceramic insulator Interrupter lid
© ABB Group June 25, 2015 | Slide 4 VD4/R Quenching technique
VD4/R Main components Month DD, Year | Slide 5© ABB Group Protection relay ( accessory)Closing pushbuttonOpening pushbuttonCB contacts status (open/closed)Integrated closing spring charging lever Charged/discharged closing spring indicator (accessory) MV terminalsEpoxy resin poles with embedded Vacuum Interrupters (VI) Current transformers / sensors ( accessory ) Operation counter Keylock in open position Mechanical override of undervoltage shunt opening release ( accessory )
VD4/R Integrated solution Month DD, Year | Slide 6 © ABB Group
VD4/R Wide range of accessories Month DD, Year| Slide 7© ABB Group Shunt opening release Auxiliary contacts (5 to 15)Key lock in open positionAdditional shunt opening releaseOpening solenoid (PR521)Shunt closing releaseMotor charger for closing springThermal relay for protecting motor chargerUndervoltage shunt opening releaseCharged/discharged spring signalling contactPushbutton protectionPadlockWheels
VD4/R Reliability and flexibility Month DD, Year | Slide 8© ABB Group
Vacuum circuit breaker for secondary distribution AIS On board relay and CTs/sensorsInterchangeable with HD4/RCommand able to do fast operation cycle:O-0.3s-CO-15s-COVD4/RVacuum circuit breakerMonth DD, Year| Slide 9© ABB GroupRated Voltage [kV]1217.5 24Rated Current [A]1250 Short time current [kA]25 (3s) 20 (3s) Mechanical class M2 Electrical class E2