Receiving; Unpacking; Inspection Upon Receiving; Temporary Storage Before Assembly - ABB UZE Installation And Commissioning Manual

2. Receiving

2.1 Unpacking

Check that the package is free from transport damage. Open
the cover of the transport box. Remove the supporting blocks
of wood. If the package is damaged a careful investigation
must be carried out.
Lift the tap-changer, using the lifting eyes on the top.

2.2 Inspection upon receiving

1. Check that there is no visible damage.
2. Open the door of the cabinet of the motor-drive
mechanism and check that the motor-drive mechanism is
free from damage.
3. If transport damage is found, and it is adjudged that
correct operation of the tap-changer is not possible, a
damage report should be sent to the insurance company.
It is also recommended that photographs be taken of the
damaged details. Mark the photos with the serial number
of the tap-changer and send them to ABB for comments.
4. Check that the quantity delivered, the type designation
and the serial number agree with the delivery documents,
e.g. the packing list or ABB's ordering acknowledgement.
The serial number is stamped on the rating plate.
5. Remove the drying agent (placed according to Fig. 5),
before the tap-changer is taken into service.
6. If the packing material seems to be wet (e.g the plastic
is coated with moisture), the tap-changer must be dried
at least 24 hours at a temperature of max. 70 °C (158 °F)
before it is fitted to the transformer. See chapter 3, Drying.

2.3 Temporary storage before assembly

If the tap-changer is not to be installed on the transformer
immediately, once the delivery has been approved the tap-
changer must be kept warm and dry. Let the unit be kept in
its plastic enclosure and leave the drying agent until assembly.
Fig. 5. Inspection on receipt
1ZSE 5492-115 en, Rev. 6 | Installation and commissioning guide UZE/UZF 13
Rating plate with
serial no.
Drying agent