Eaton VCP-W Series Instructions For Installation/operation/maintenance/servicing

Also see for 120VCP-W25: Installation, operation and maintenance Instructions for installation, operation and maintenance

Contents

29Instruction Booklet IB131006ENEffective March 2019Instructions for installation,operation, and maintenance of typeVCP-W vacuum circuit breakersEATON www.eaton.comNOTICETHE CIRCUIT BREAKER AND INTEGRAL LEVERING MECHANISM INCLUDESALL NECESSARY INTERLOCKS THAT, WHEN INTERFACED WITH A COM-PATIBLE STRUCTURE, WILL RENDER THE CIRCUIT BREAKER MECHANISMMECHANICALLY AND ELECTRICALLY TRIP-FREE DURING THE LEVERINGPROCESS. FOR INFORMATION PERTAINING TO INDIVIDUAL INTERLOCKS,REFER TO PARAGRAPH 4.9 IN THIS SECTION.Inserting breaker:A. Lower compartment direct roll-in-breakerPush the breaker into the breaker compartment until the breaker“T” handle latches over the moving block on the levering screwassembly. In this position, the breaker is considered in theDISCONNECT position.B. Upper compartment or non-direct roll-in-breaker1. The breaker compartment has an interlock assembly onthe compartment levering assembly, located on both theleft and right hand rail assemblies. The purpose of theinterlock assembly is to prevent the breaker from beingremoved from the compartment without the extensionrails in place.2. In order to insert or remove a non-direct roll-in breaker, aset of extension rails must be inserted into the left handand right hand rail assemblies. This is achieved by insert-ing the appropriate rail, identified with a label, diagonallyinto the slot such that the extension rail, when lowered,unlocks the interlock allowing an installed circuit breakerto roll forward. The rolling surfaces of the compartmentrail and extension rail are flush.3. In this position, the breaker can be inserted or removedfrom the breaker compartment (see Figures 9 and 10).Figure 9. Insertion of the drawout extension rails.Figure 10. Lifting and setting the breaker in the housing.Checking pan operation:A. TEST or DISCONNECT/TEST positionTo operate the breaker at this time (TEST position mode), it is neces-sary to connect the secondary harness with the breaker.Automatic secondary: For an automatically engaged secondaryharness, lever the breaker into the TEST position identified by thebreaker position indication (BPI) label.Manual secondary: For a manually engaged secondary harness, pullthe secondary plug handle forward until the secondary receptacle,located on the compartment levering pan, fully mates with thesecondary breaker wiring plug.ote:N It is recommended that the power to the secondary connector bede-energized prior to manually engaging the secondaries to prevent damageto the secondary pins associated with the spring charging motor circuit.ote:N To prevent damage never rely on racking to engage secondary on amanually engaged secondary.In these positions, the breaker control circuit can be tested offline(breaker is not connected to the primary circuit).B. Racking the breaker to the CONNECTED position1. Movement of the breaker from the TEST or DISCONNECT/TEST position to the CONNECTED position.a. The breaker will trip as the levering-in crank is pushedin to gain access to the hex drive nut on the leveringsystem.b. Rotate the levering-in crank in a clockwise direction untilthe torque limiter on the levering-in crank “breaks free.”As a position verification;• BPI pan assembly: the breaker cover plate MUST alignwith the black line associated with the CONNECTEDposition, location shown on the BPI label (Figure 12item 7).• Non-BPI pan assembly: the red indicator on the lever-ing system as shown through the window below thelevering-in crank on the front of the levering system(Figure 13, item 7).