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ABB VM1 Installation And Service Instructions Manual
Also see for VM1: Installation and service instructionsManualInstruction manualInstruction manual
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Contents
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236.6. Types of withdrawable circuit-breakers available for PowerCubemodulesComplete the circuit-breaker selected with theoptional accessories indicated on the following pages.vM1/a/P withdrawable circuit-breakerur isc Rated uninterruptedcurrent (40 °C) [a]type of circuit-breakerkV kAW = 600I = 150u/l = 205ø = 35PowerCube Pb115 25 1250 VM1/A/P 15.12.25 p15031.5 1250 VM1/A/P 15.12.32 p150W = Width of the switchgear.I = Pole horizontal centre distance.u/l = Distance between bottom and top terminal.∅ = Diameter of the isolating contact.6.7. Mechanism and electrical operationTo operate the circuit-breaker electrically, control powermust be available. The section entitled Racking describesthe application of control power through the secondarydisconnect when the circuit-breaker is in the Test andConnect positions.1. Inspect the initial state of the circuit-breaker to determinethe operations available.a. Close/Open Indicator.b. Circuit-breaker position Test or Connect (or controlpower applied externally if withdrawn).2. Energize Control Power.a. Wait until “READY” lamp is on; approximately two minutemaximum depending on control voltage with 48 V DCtaking the longest amount of time.b. Circuit-breaker is ready to perform C-O operation.3. Close the circuit-breaker using the close push-button or byelectrical signal to the magnetic actuator.a. The magnetic armature moves down.• Close/Open indicator changes to Closed.• “READY” lamp illuminates again after about onesecond.b. Circuit-breaker is ready to perform O-C-O operation.4. Open the circuit-breaker using the manual OPEN push-button or by electrical signal to the magnetic actuator.a. The armature moves up.• Close/Open indicator changes to Open.• “READY” lamp will remain illuminated.b. Circuit-breaker is ready to perform C-O operation. |
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