Busbar change without interruptionBusbar change without interruption: Switchover (e.g. re-allocation of several consumers to another busbar for the purpose of maintenance in the de-energized state without interrupting operations)

Field 5: Coupler panel1. Isolator Q51 ON2. Isolator Q52 ON3. Circuit breaker Q53 ON

What is being measured now?

Field 1: Incoming feeder 11. Isolator Q12 ON2. Isolator Q11 OFF

What is being measured now?

Busbar change without interruption

Voltage [kV] Current [A]Busbar 1 ____ ----Busbar 2 ____ ----Incoming feeder 1 ____ ____Incoming feeder 2 ____ ____Outgoing feeder 1 ____ ____Outgoing feeder 2 ____ ____Coupler panel ---- ____

Voltage [kV] Current [A]

Field 2: (Incoming feeder 2)1. Isolator Q22 ON2. Isolator Q21 OFF

What is being measured now?

Field 3 (Outgoing feeder 1)1. Isolator Q32 ON2. Isolator Q31 OFF

What is being measured now?

Busbar 1 ____ ----Busbar 2 ____ ----Incoming feeder 1 ____ ____Incoming feeder 2 ____ ____Outgoing feeder 1 ____ ____Outgoing feeder 2 ____ ____Coupler panel ---- ____

Voltage [kV] Current [A]Busbar 1 ____ ----Busbar 2 ____ ----Incoming feeder 1 ____ ____Incoming feeder 2 ____ ____Outgoing feeder 1 ____ ____Outgoing feeder 2 ____ ____Coupler panel ---- ____

Field 4: Outgoing feeder 21. Isolator Q42 ON2. Isolator Q41 OFF

What is being measured now?

What are the advantages of changing busbars without interruption?

Voltage [kV] Current [A]Busbar 1 ____ ----Busbar 2 ____ ----Incoming feeder 1 ____ ____Incoming feeder 2 ____ ____Outgoing feeder 1 ____ ____Outgoing feeder 2 ____ ____Coupler panel ---- ____

Voltage [kV] Current [A]Busbar 1 ____ ----Busbar 2 ____ ----Incoming feeder 1 ____ ____Incoming feeder 2 ____ ____Outgoing feeder 1 ____ ____Outgoing feeder 2 ____ ____Coupler panel ---- ____

The change is faster.Consumers are not disconnected from the supply.Consumers are disconnected from the supply.