22 ABB Power Distribution
– S1 Auxiliary switch on operating mechanism
– S2 Auxiliary switch on blocking magnet
– S3 Auxiliary switch on the breaker shaft
– S4 Auxiliary switch on the breaker shaft
– S5 Auxiliary switch on the breaker shaft
– S7 Auxiliary switch for fault annunciation
(fleeting contact, time ≥ 30 ms)
– V3 Series rectifier for – Y3 and – K0
– V4 Series rectifier for – Y4
– V7 Series rectifier for – Y7
– V9 Series rectifier for – Y9
– M0 Charging motor for spring
energy storage mechanism
– K0 Anti-pumping relay
– R0 Series resistor
Figure 7/3: Wiring diagram
Arrangement for DC 24, 48, 60, 110, 125, 220, 240 V; AC 110, 220, 240 V
– Y1 Blocking magnet
– Y2 Shunt release OFF
– Y3 Shunt release ON
– Y4 Undervoltage release
– Y7 Indirect overcurrent release
– Y9 Second shunt release OFF
– V1 Series rectifier for – Y1
– V2 Series rectifier for – Y2
Shown with the spring operating mechanism in the
discharged state. The wiring diagram comprises the basic
components and all further equipment options for the
various VD4 types. The scope of equipment possible
within an individual type series is listed in the relevant
switchgear list, and the equipment fitted in each individual
case can be found in the order documentation.
Special arrangement for – S5
Type19 Type 20 Type 22 Type 23 Type 24
ON
OFF
1)
Only when Y1 not fitted
2)
External operation
Type 21
Standard
arrangement
Note:
Shunt releases and blocking magnets are fundamentally
wired with rectifiers (e.g. magnet holder 63 with integrated
rectifiers V1, V2, V3 and V9).
Rectifiers function as free-wheeling diodes is d.c.-supply.