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1ZSE 5492-115 en, Rev. 5

UZE requires the transformer conductors to be accessed from the rear of the on-load tap-

changer.

UZF has an inclined rear wall and a top cover that is removable to provide access to the

transformer conductors.

WARNING

The cover for access to conductors on top of UZF tank may be opened after draining

the transformer main tank.

UZE models are available for use without a separate oil conservator. For example, when

used on sealed tank transformers.

1.1 Required tools

■ Normal set of screwdrivers

■ Normal set of open-end wrenches

■ Hexagonal wrench, 8 mm

■ Dynamometric wrench (5-85 Nm)

■ Air pump with pressure gauge and connection to male thread R 1/8” (0-100 kPa)

■ Flexible tube with connection, internal thread R 1/8”

■ Tool for opening of oil drums

■ Clamping blocks, (only for installation)

■ Small brush (width 10 mm, only for installation)

1.2 Required material

■ Equipment for oil lling for connection to the oil valve. For dimensions see the dimension

drawing.

■ Equipment for connection between the on-load tap-changer and the transformer when

lling under vacuum.

■ Sealing tape

■ Glue (ABB 1 3401-608), 0.5 kg (contact adhesive on nitrile rubber base, only for instal-

lation)

■ Oil as per section 1.3

■ Maintenance Guide, 1ZSE 5492-123

■ Circuit diagram for the motor-drive mechanism

1 Introduction

ABB UZE User Manual

Other manuals for ABB UZE