Putting Into Service - ABB VD4G-25 Installation And Operating Instructions Manual

V D 4 G I N S TA L L AT I O N A N D O P E R AT I N G I N S T R U C T I O N S
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8. Putting into service

8.1. General procedures
All the operations for putting into
service must be performed by ABB
personnel or by the customer's
adequately qualified personnel with
detailed knowledge of the apparatus
and installation.
If the operations are obstructed, do not
force the mechanical interlocks but
check that the operating sequence is
correct.
The operating forces to apply when
racking-in withdrawable circuit-
breakers are indicated in section 7.5.
Perform the following operations before putting the
circuit-breaker into service:
• make sure that the power connections to the
circuit-breaker terminals are tight;
• establish the setting of the electronic primary
overcurrent release (if applicable);
• make sure that the value of the voltage supplied to
the auxiliary circuits is between 85% and 110% of
the rated voltage of the electrical applications;
• make sure that there are no foreign bodies, such
as bits of packing, between the moving parts;
• to avoid overtemperatures, make sure that there is
a sufficient exchange of air in the installation site;
• also perform the inspections indicated in table T3.