ABB VD4 Series Instruction Manual - page 30
30 VD4 Vacuum-circuit-breaker | Instruction manual 534/01
Figure 7/1: Manual operation and mechanical indicators of a with-
drawable breaker part, withdrawable circuit-breaker part in
test/disconnected position
Note:
Test switching of the circuit-breaker without primary voltage
can be carried out with the withdrawable part in the test
position (with the control wiring plug fitted).
3.1 Sliding handle, connected to the catch in the withdrawable
part base frame
(4) Spindle mechanism
4.2 Square spigot
101 Door-locking mechanism of draw-out-truck for UniGear
8
Control wiring plug connection
11 Mechanical ON push-button
12 Mechanical OFF push-button
13 Mechanical position indicator
14 Mechanical operating cycle counter
18 Charging condition indicator
19 Charging lever
Figure 7/2: Movement of the withdrawable breaker part between the test/
disconnected position and the service position, clockwise up
to the stop for the service position and anti-clockwise for the
test/disconnected position
1
Withdrawable circuit-breaker part
4
Spindle mechanism
5
Hand crank
Figure 7/3: Approaching the panel and positioning the service truck with
the guide pins of the adjustable height bench top at the correct
height for the catch to engage
48.1 Height adjuster
48.2 Guide pin
48.3 Catch
Figure 7/4: Service truck engaged with the panel. Withdrawable circuit-
breaker part released for removal by moving the sliding
handles inwards
1
Withdrawable circuit-breaker part
3.1 Sliding handle
48 Service truck (not included in supply)
101 Door-locking mechanism of draw-out-truck for UniGear
4
1
5
48.2
48.3
48.1
1
3.1
101
48
8
11
12
13
14
19
18
4 / 4.2
3.1
101