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Eaton NOVA STS-27 User Manual

Eaton NOVA STS-27
28 pages
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NOVA™ STS-15, NOVA™ STS-27, and NOVA™ STS-38
Single-Tank, Triple-Single, Electronically Controlled Recloser
Installation and Operation Instructions
COOPER POWER
SERIES
Reclosers
MN280046EN
Effective May 2016
Supersedes S280-44-1
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Eaton NOVA STS-27 Specifications

General IconGeneral
BrandEaton
ModelNOVA STS-27
CategoryIndustrial Equipment
LanguageEnglish

Summary

Safety For Life

Safety Information and Instructions

General and specific safety instructions for operating and installing the recloser.

Service Information

Discharge Trip and Close Capacitor

Procedure for safely discharging the trip and close capacitor before maintenance.

High-Potential Withstand Testing

Procedures and equipment for verifying dielectric integrity.

Ratings and Specifications

Installation Procedure

Physical Recloser Installation

Guidance on moving, lifting, and physically mounting the recloser.

Electrical Connections and Grounding

Steps for grounding, control, heater, bypass, and line connections.

Remove Recloser from Service

Grounding the NOVA STS Recloser

Recloser Operation

Mechanism Tripping and Closing

Details on the magnetic actuator, latching, and trip/close capacitor.

Manual Operation and Indicators

How to manually operate the recloser and interpret indicators.

Actuator Circuit Board and Capacitors

Internal Voltage Sensing Option

System Configuration and Programming

Details on configuring the control, PT ratios, and phase angle adjustments.

Troubleshooting

Unit Will Not Close Troubleshooting

Diagnosing and resolving issues when the recloser fails to close.

Unit Will Not Open Troubleshooting

Diagnosing and resolving issues when the recloser fails to open.

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