ABB UniGear ZS2 Installation, Operation And Maintainance Instructions page 18

Table of Contents

Advertisement

18
U N I G E A R Z S 2 I N S TA L L AT I O N , O P E R AT I O N A N D M A I N TA I N A N C E I N S T R U C T I O N M A N U A L
Figure 25.3
Figure 25.5 - CB/Cable compartment door enabling device
Electromechanical door interlock for CB and cable
compartment
4.3.4 Locking devices
The main circuit's metallic shutters can be
padlocked independently when the
withdrawable circuit breaker has been
removed from switchgear. (Fig 25.4)
Access to the circuit breaker racking slot can
be restricted with a pad lock.
Access to the circuit breaker compartment
can be restricted with a padlock.
Access to the operating-shaft of the earthing
switch can be restricted with a key lock.
(optional feature on request)
Note: For any padlock provision, padlock of
Ø6mm can be used.
Figure 25.4
Figure 26 - Push button for mechanical ON/OFF breaker operation
with the door closed.
If the withdrawable part is in the service position, operation is carried
out using the knob which swings a push rod extension out.
26.1 Mechanical pushbutton
26.2 Turning knob
26.3 Handle
Figure - E&S Lock Arrangement
26.2
26.1
Turning knob
Mechanical
push
button
26.3
Handle

Advertisement

Table of Contents
loading

Table of Contents