Spare Parts, Auxiliary Materials, Lubricants; Spare Parts - ABB VD4 Instruction Manual

• Enabling of switching when the withdrawable
part moves into the service position is effected
electrically by operation of auxiliary switch -S6
in the breaker housing (for type A), or of auxi-
liary switch -S9 in the withdrawable assembly
(for type B), and mechanically slightly earlier;
the latter corresponds to a position approxi-
mately half a turn of the crank before stop.
• For motion into the test/disconnected po-
sition, the same enabling conditions apply
analogously, in this case by means of auxiliary
switch -S6 in the breaker housing(for type A)
or the auxiliary switch -S8 in the withdrawable
assembly (for type B).
4. It must only be possible to open the circuit-
breaker (manually) when the withdrawable part
is in the service position or test/disconnected
position and the control voltage has failed.
Check this condition.
5. Withdrawable parts with order-related blocking
magnet -Y0 may not be moved in case of control
power failure, or when there is no control power.
Do not forcibly move blocked withdrawable
parts! The blocking magnet -Y0 is only present
on manually operated withdrawable parts.
Releasing the blocking magnet -Y0.
• Remove front plate (1.1),
• Disengage blocking magnet -Y0 by pulling the
magnet armature,
• While doing so, turn crank (121) about one half
turn (either direction of rotation is permissible).
The blocking magnet is only active in the test
position and service position. In intermediate
positions it has no effect.
6. Disconnection of the control wiring plug (10.2)
as well as later insertion must be blocked in the
withdrawable part's service position.
Check this condition.
5.6

Spare parts, auxiliary materials, lubricants

5.6.1 Spare parts

When parts are required, the serial number of the
relevant withdrawable breaker part or circuit-breaker
should always be quoted. Setting instructions are
to be requested separately.
Circuit-breaker VD4
• Shunt release, auxiliary switch:
For notes on settings see drawing
GCE 717 96 11
• Charging motor with gearbox:
No special notes required
(table 1)
Withdrawable assembly of VD4
• Manually moveable withdrawable assembly :
– type A:
For notes on settings see drawing
GCE 7003570, sheet 1 and 2
– type B:
For notes on settings see drawing
GCE 7003570, sheet 1 and 2.
• Motor-driven withdrawable parts:
For notes on settings see drawing
GCE 7003571
• Blocking magnet -Y0:
For notes on settings see drawing
GCE 7003820, sheet 1.
(table 2)
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