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 11 page image

6NOVA™ STS Single-Tank,Triple-Single,Electronically ControlledRecloserINSTALLATION AND OPERATION INSTRUCTIONS MN280046EN May 2016WARNINGHazardous 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 06 243 15Figure 6 Terminal Identification of the NOVA STSrecloserB. Provide surge arrester protection. Surge arresterprotection should be provided on both sides; refer toFigure 7.SurgeArrestersBypassSwitchDisconnectSwitchSurgeArrestersDisconnectSwitchRecloser135246Figure 7 Connection diagram shows complete surgeprotection and illustrates bypass and disconnectswitches9. Block ground sensing via the control panel.10. Close source and load disconnect switches.11. Close all three phases via control signal.12. Open bypass switches.13. Enable ground sensing, if applicable.Remove recloser from serviceWARNINGHazardous 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 Do not rely on the open positionof the yellow operating handle or the contact positionindicator; it does not ensure that the line has beende-energized Always establish a visible disconnectFailure to follow proper safety practices can result incontact with high voltage, which will cause death orsevere personal injury G114 11. Block ground tripping via the control panel. Refer toService Information S280-70-7 Form 6 Triple-Single,Microprocessor-Based Pole Mount Recloser ControlInstallation and Operation Instructions.CAUTIONEquipment misoperation Disconnect all controlpower sources prior to disconnecting or reconnectingthe control cable from the control Failure to complycan result in recloser misoperation at the time ofdisconnection or reconnection of the control cable tothe control T311 12. Close all three bypass switches.otee:N If only one bypass switch is closed and the recloseris opened via the yellow operating handle, it ispossible all three phases will trip based upon modeselection.3. Open the source and load disconnect switches.4. Pull down all three yellow operating handles with ahotstick. The yellow operating handles are locatedunder the recloser sleet hood.●● If the recloser is set in single-phase trip/single-phaselockout mode, only one phase will open.●● If the recloser is set in single-phase trip/three-phaselockout mode or three-phase trip/three-phase lockoutmode, all three phases will open.5. The control will sense that all three recloser phases areopen.