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This figure shows a simplified main circuit diagram of parallel-connected DC/DC converter
modules with the DC switch/disconnector and charging circuit. Also the energy storage and
related cabling and equipment are visible.
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3
5
4
3
5
1
DC/DC converter cubicles
2
Energy storage cabinet
3
Drive DC bus
4
DC switch/disconnector
5
Charging components
6
DC/DC converter module
7
Filter module
8
Cabling between DC/DC converter unit and energy storage
9
Energy storage disconnecting device
10
Energy storage protective circuit breaker
11
Energy storage
1
7
6
6
7
Operation principle and hardware description 19
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2
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