Contents
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY ................................... II
SAFETY FOR LIFE .........................................................................IV
SAFETY INFORMATION ....................................................................IV
Safety instructions .............................................................................. iv
PRODUCT INFORMATION ................................................................... 1
Introduction ....................................................................................1
Acceptance and initial inspection ...................................................................1
Handling .......................................................................................1
Storage .......................................................................................1
Quality standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INSTALLATION ............................................................................ 2
Installation location ..............................................................................2
Connections ....................................................................................2
Final inspection .................................................................................2
ACCESSORIES ............................................................................ 4
Liquid level gauge ...............................................................................4
Liquid temperature gauge .........................................................................4
Pressure-vacuum gauge ..........................................................................5
Pressure relief device ............................................................................5
Winding temperature gauge .......................................................................6
Transformer cooling fans ..........................................................................6
High voltage bushings ............................................................................7
Low voltage bushings ............................................................................7
De-energized tap-changer .........................................................................8
Insulating liquid .................................................................................8
Vacuum fault interrupter (VFI) ......................................................................9
MAINTENANCE ...........................................................................11
Periodic inspection .............................................................................11
Removing and replacing bushings ..................................................................11
Removing and replacing draw lead type bushings .....................................................11
Removing and replacing fixed stud or spade type bushings ..............................................12
Cover removal .................................................................................13
Insulating liquid maintenance .....................................................................14
APPLICABLE STANDARDS ................................................................. 14
R-TEMP FLUID-FILLED TRANSFORMERS ..................................................... 14
Dielectric strength ..............................................................................14
PEAK™ AND ENVIROTEMP™ FR3™ FLUID-FILLED TRANSFORMERS ............................. 15
Spare parts and service ..........................................................................15
PREVENTATIVE MAINTENANCE INSTRUCTIONS .............................................. 16
iiiSubStation tranSformer inStallation and partS replacement information MN202002EN JUNE 2016
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