Eaton NOVA STS-15 Installation And Operation Instructions Manual

Also see for COOPER POWER SERIES: Installation and operation instructions Installation instructions Installation instructions Installation and operation instructions Operation instructions

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Eaton NOVA STS-15 Installation And Operation Instructions Manual Manual pdf 15 page image

10NOVA™ STS Single-Tank,Triple-Single,Electronically ControlledRecloserINSTALLATION AND OPERATION INSTRUCTIONS MN280046EN May 2016Actuator circuit boardThe actuator circuit board, located within the mechanism,drives the mechanism based upon signals sent from thecontrol. The actuator board manages the high power path byproviding precharge and discharge capabilities and providesthe proper current pulses and timing to the mechanism.It also prevents closing when there is insufficient energystored in the trip and close capacitor.Trip and close capacitorWARNINGPersonal injury The trip and close capacitor retainsan electrical charge Always discharge the trip andclose capacitor prior to performing any service on themechanism Contact with a charged capacitor can resultin skin burn or electrical shock T266 0A trip and close capacitor, located within the mechanism,stores the necessary energy for operating the recloser.The Discharge Trip and Close Capacitor procedure is locatedin the Service information section.Internal voltage sensing optionWARNINGThis equipment is not intended to protect humanlife Follow all locally approved procedures and safetypractices when installing or operating this equipmentFailure to comply can result in death, severe personalinjury, and equipment damage G102 1WARNINGHazardous voltage Always use a hotstick when workingwith this equipment Failure to do so could result incontact with high voltage, which will cause death orsevere personal injury G108 1WARNINGHazardous voltage Solidly ground all equipment Failureto comply can result in death, severe personal injury,and equipment damage T223 2IMPORTANTDisconnect switches for AC control power are necessary toisolate the control for testing and servicing.WARNINGHazardous voltage If terminal connections are reversed,the internal voltage sensing option may indicate zerovoltage with the contacts open Do not rely on internalvoltage sensing to ensure that the voltage is zero andthe line has been de-energized Always follow propersafety practices and use a separate detection methodto verify a de-energized condition Failure to do so canresult in contact with high voltage, which will causedeath or severe personal injury T365 0The NOVA STS recloser is available with internal voltagesensing when specified at time of order with the Form 6Triple-Single control. Refer to the Installation proceduresection of this manual for information on the NOVA STSrecloser installation procedure. Refer to Service InformationS280-70-7 Form 6 Triple-Single, Microprocessor-BasedPole Mount Recloser Control Installation and OperationInstructions for further information on installing the Form 6Triple-Single pole-mount control.Verify the correct load-side and source-side terminalconnections. This is required for correct operation of theinternal voltage sensors.Verify correct ground of the NOVA STS recloser and controlprior to making any high-voltage connections and beforehigh-potential testing. A proper ground connection consistsof a good electrical ground connection to the surge groundconnector located on the mechanism housings. Provide agood electrical ground connection to the control cabinetground.otee:N Painted surfaces of the mechanism housing mayprevent a ground connection to the recloser housing.Always provide a good electrical connection to themechanism surge ground connector.Poor grounding of the mechanism housing may resultin the presence of high voltage on the mechanismhousing associated with the high-voltage resistorconnections used with internal voltage sensing.CAUTIONHazardous voltage Do not touch the receptacleconnections of the control/voltage-sensing cable If therecloser is energized and the control/voltage-sensingcable is disconnected from the recloser or the control,a voltage clamped at 250 Vac will be present at thereceptacle Contact with this voltage can result inpersonal injury T346 1The recloser utilizes a 26-pin control cable to carry theinternal voltage sensing signal from the recloser to thecontrol. There are no additional external connectionsrequired.