ABB VD4 Series Instruction Manual page 22

Vacuum circuit-breaker 36 kv
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1)
Only when Y1 not fitted
2)
External operation
Special arrangement for – S5
Type19
– 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)
Figure 7/3: Wiring diagram
Arrangement for DC 24, 48, 60, 110, 125, 220, 240 V; AC 110, 220, 240 V
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.
22
Type 20
Type 22
– 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
Type 23
– 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
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.
Standard
arrangement
Type 21
Type 24
ABB Power Distribution

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