Receiving; Unpacking; Inspection On Receipt; Temporary Storage Before Assembly - ABB UCL Installation And Commissioning Manual

2. Receiving

2.1 Unpacking

Check that the packages are free from transport damage.
Open the covers of the transport boxes, Remove the
supporting block of wood. If any package is damaged, a
careful investigation must be carried out.
Lift the tap-changer parts by their lifting eyes according to
Fig. 4.

2.2 Inspection on receipt

1. Check that the diverter switch housing, tap selector,
motor-drive mechanism and accessories are undamaged.
2. If transport damage is found, and it is judged 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
parts. Mark the photos with ABB's reference number and
the serial number of the tap-changer and send them to
ABB.
3. Check that the parts delivered, type designations and the
serial numbers agree with the delivery documents, e.g. the
packing list or ABB's order acknowledgement. The serial
numbers to be checked are those on the rating plate,
on the diverter switch housing and on the tap selector.
For locations; see Fig. 3. The serial number on the parts
belonging to one tap-changer unit should all be the same.

2.3 Temporary storage before assembly

If the tap-changer is not to be assembled immediately, once
the delivery has been approved, the tap-changer and the
motor-drive mechanism must be stored at a warm and dry
indoor location. Keep the units in their plastic enclosures and
do not remove the drying agent until assembly.
14 Installation and commissioning guide UCL/VUCL | 1ZSC000562-AAZ en