Installation - ABB VD4 Instruction Manual

5 Installation

(Figures 3/4, 4/1 and 4/2)
Perfect operation of the circuit-breaker depends on careful
and professional handling of the withdrawable part.
Allocate each unit to the appropriate switchgear panel in
■
accordance with the switchgear plan and the rated electrical
data.
Remove the transport profile 148 and transport bracket s
■
147.
Insert the withdrawable part in the switchgear panel
■
checking for unimpeded motion and function sequences,
including the closing of primary contacts when the service
position is reached.
Remove any dirt.
■
When the switchgears are operated in areas with high
humidity and/or major rapid temperature fluctuations, there
is a risk of dew deposits which must remain an exception
in normal operating conditions Provisions should be taken
according to section 1.3.2 (special operating conditions).
20 Installation | VD4 Vacuum Circuit-breaker