Eaton EZ II Series Installation And Maintenance Instructions

Contents
SAFETY INFORMATION
Safety Information .............................................................................iv
PRODUCT INFORMATION
Introduction ...................................................................................1
Acceptance and Initial Inspection...................................................................1
Handling ......................................................................................1
Storage .......................................................................................2
INSTALLATION INSTRUCTIONS
Installation Location .............................................................................2
Mounting the Transformer ........................................................................2
Pre-Service Inspection (Exterior) ...................................................................2
Pre-Service Inspection (Interior) ....................................................................3
External Connections ............................................................................4
ACCESSORIES
Liquid Level Gauge .............................................................................5
Liquid Temperature Gauge ........................................................................5
Pressure-Vacuum Gauge .........................................................................6
Pressure Relief Device ...........................................................................6
SWITCHES AND PROTECTIVE DEVICES
Bay-O-Net Fuse. ................................................................................7
Internal Cartridge Fuse ..........................................................................10
Internal Loadbreak Switches .....................................................................11
Tap-Changer ..................................................................................12
Dual-Voltage and Delta-Wye Switch ................................................................14
Vacuum Fault Interrupter (VFI) ....................................................................15
Air Switches (Arc Strangler™) ....................................................................16
Surge Arresters ...............................................................................17
MAINTENANCE
Exterior Maintenance ...........................................................................19
Cabinet Interior Maintenance .....................................................................19
Tank Internal Maintenance .......................................................................19
Tank Cover Removal and Installation ...............................................................19
Bushing Removal and Replacement................................................................22
Cabinet Removal and Installation ..................................................................22
Insulating Liquid Maintenance ....................................................................23
OPERATION
Operation ....................................................................................24
APPLICABLE STANDARDS
Applicable Standards ...........................................................................25
SPARE PARTS AND SERVICE
Spare Parts and Service .........................................................................25
PREVENTATIVE MAINTENANCE INSTRUCTIONS
Preventative Maintenance Instructions .............................................................26
iiiThree-phase pad-mounted compartmental type installation and maintenance instructions MN202001EN August 2015

Eaton EZ II Series Specifications

General

Brand	Eaton
Model	EZ II Series
Category	Cables and connectors
Language	English