28
1ZSE 5492-118 en, Rev. 4
fm_00217
5.2 Mounting of accessories
The accessories on the tap-changer top cover can be rearranged to suite the individual
transformer.
The bevel gear is turnable in order to have the horizontal shaft to the motor-drive mechanism
in right direction. The limit for the turning depends on the arrangement of the accessories
but is max. 140
o
respective 125
o
as in Fig. 15. The tube bends are turnable to suite for ex-
ample the location of the conservator and the oil filter unit (if any). The flanges ”A” are equal
and their accessories can be changed between them.
We recommend that the air release valve to the transformer, see Fig. 2, is replaced by a pipe
to the gas operated relay in order to get a signal from the relay as quick as possible in case
of gas production in the transformer.
CAUTION
The pressure relay is a calibrated monitoring instrument. It must be handled with care and
protected against careless handling or any kind of mechanical damage. Do not open the
package of the pressure relay until you are about to install it on the on-load tap-changer.
5 Final assembly
Fig. 15.
A
A
A
