ABB VM1 Installation And Service Instructions Manual page 8

VM1 - USER MANUAL
8
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4. Handling
Before carrying out any operations, always make
sure that the capacitors are discharged.
To lift and handle the circuit breaker, proceed as
follows (fig. 2):
• use a special lifting tool (1) (not supplied) fitted
with ropes with safety hooks (2);
• insert the hooks (2) in the supports (3) fixed to
the frame of the circuit breaker and lift. Latch
the hooks (2) into the support holes (3)
according to the type of apparatus (see table);
• on completion of the operation (and in any case
before putting into service) unhook the lifting
tool (1) and dismantle the supports (3) from the
frame.
Fig. 2
Fig. 3
3 2
During handling, take great care not to stress the
insulating parts and the terminals of the circuit
breaker.
1
Version
Fixed
Fixed
Fixed
Withdrawable 150 mm
Withdrawable 210 mm
Withdrawable 210 mm
Withdrawable 275 mm
Withdrawable 275 mm
The apparatus must not be handled by
putting lifting devices directly under the
apparatus itself. Should it be necessary
to use this technique, put the circuit
breaker onto a pallet or a sturdy
supporting surface (see fig. 3). In any
case, it is always advisable to carry out
lifting using the supports (3).
C B A
Pole centre
Rated current
distance
150-210 mm up to 1250 A
275 mm from 1600 to 2500 A
210 mm from 1600 to 2000 A
up to 1250 A
up to 1250 A
from 1600 to 2500 A
up to 1250 A
from 1600 to 2500 A
3
Hole
A
A
A
A
C
B
B
C