ABB Emax DC L3447 Installation And Service Instructions Manual

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ABB Emax DC L3447 Installation And Service Instructions Manual Manual pdf 103 page image

L3447 Emax DC101/108Doc. No.Model1SDH000635R0002Apparatus ScalePage No.L372817. Circuit diagramsWarningBefore installing the circuit-breaker, carefully read note F on the circuit diagrams.Operating status shownThe circuit diagram is for the following conditions:- withdrawable circuit-breaker, open and racked-in- circuits de-energised- releases not tripped- motor operating mechanism with springs unloaded.VersionsThe diagram shows a circuit-breaker in withdrawable version; it can be applied to a fixed version circuit-breaker as well.Fixed versionThe control circuits are fitted between terminals XV (connector X is not supplied).With this version, the applications indicated in figures 31 and 32 cannot be provided.Withdrawable versionThe control circuits are fitted between the poles of connector X (terminal box XV is not supplied).Version with PR122/DC electronic releaseVersion with PR123/DC electronic releaseCaption = Circuit diagram figure number* = See note indicated by the letterA1 = Circuit-breaker accessoriesA3 = Accessories applied to the fixed part of the circuit-breaker (for withdrawable version only)A4 = Example switchgear and connections for control and signalling, outside the circuit-breakerA13 = PR021/K signalling unit (outside the circuit-breaker)D = Electronic time-delay device of the undervoltage release, outside the circuit-breakerF1 = Delayed-trip fuseK51 = PR122/DC, PR123/DC electronic release with the following protection functions:- L overload protection with inverse long time-delay trip-setting I1- S short-circuit protection with inverse or definite short time-delay trip-setting l2- I short-circuit protection with instantaneous time-delay trip-setting l3- G earth fault protection with inverse short time-delay trip-setting l4 (only PR123/DC)K51/1...8 = Contacts for the PR021/K signalling unitK51/GZin(DBin)= Zone selectivity: for protection G (only with Vaux and PR123/DC release)K51/GZout(DBout) = Zone selectivity: for protection G (only with Vaux and PR123/DC release)K51/IN1 = Digital programmable input (available only with Vaux and release PR122/DC or PR123/DC with indicator module PR120/K)K51/P1...P4 = Programmable electrical signalling (available only with Vaux and release PR122/DC or PR123/DC with indicator modulePR120/K)K51/SZin(Dfin) = Zone selectivity: input for protection S (only with Vaux and PR122/DC or PR123/DC release)K51/SZout(DFout) = Zone selectivity: output for protection S (only with Vaux and PR122/DC or PR123/DC release)K51/YC = Closing control from PR122/DC or PR123/DC electronic release with communication module PR120/D-MK51/YO = Opening control from PR122/DC or PR123/DC electronic release with communication module PR120/D-MM = Motor for loading the closing springsQ = Circuit-breakerQ/1...27 = Circuit-breaker auxiliary contactsS33M/1...3 = Limit contacts for spring-loading motorS43 = Switch for setting remote/local controlS51 = Contact for electrical signalling of circuit-breaker open due to tripping of the overcurrent release. The circuit-breaker may be closedonly after pressing the reset pushbutton, or after energizing the coil for electrical reset (if available)S75E/1.4 = Contacts for electrical signalling of circuit-breaker in disconnected position (only with withdrawable circuit-breakers)S75I/1..5 = Contacts for electrical signalling of circuit-breaker in connected position (only with withdrawable circuit-breakers)S75T/1..4 = Contacts for electrical signalling of circuit-breaker in test isolated position (only with withdrawable circuit-breakers)CS = Pushbutton or contact for closing the circuit-breakerSO = Pushbutton or contact for opening the circuit-breakerSO1 = Pushbutton or contact for opening the circuit-breaker with delayed tripSO2 = Pushbutton or contact for opening the circuit-breaker with instantaneous tripSR = Pushbutton or contact for electrical circuit-breaker resetVaux = Auxiliary power supply voltage (see note F)W1 = Serial interface with control system (external bus): EIA RS485 interface (see note E)W2 = Serial interface with the accessories of PR122/DC and PR123/DC releases (internal bus)X = Delivery connector for auxiliary circuits of withdrawable version circuit-breakerX1...X7 = Connectors for the accessories of the circuit-breakerXF = Delivery terminal box for the position contacts of the withdrawable circuit-breaker (located on the fixed part of the circuit-breaker)XK1 = Connector for power circuits of PR122/DC and PR123/DC releasesXK2 - XK3 = Connectors for auxiliary circuits of PR122/DC and PR123/DC releasesXK4 = Connector to signal open/closeX O = Connector for YO1 releaseXV = Delivery terminal box for the auxiliary circuits of the fixed circuit-breakerYC = Shunt closing releaseY O = Shunt opening release