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Complex installation
Complex installation - multiple grids
Description:
- Essential load is fed by two mains feeders during normal operation to achieve maximum reliability of the power delivery. Bus-tie breaker (BTB) is closed.
- Complex switching algorithm running in external PLC defines which breakers are opened and which are closed independent on availability of two mains and gen-sets.
- Reverse synchronizing on both feeders and on bus-tie breaker is accomplished by 5 InteliMains NT modules controlled by external PLC.
- Active and reactive load-sharing can operate in two modes:
- Sharing the load between all running gensets - if BTB is closed
- Sharing the load in two independent groups - if BTB is opened
- Automatic power dependant start/stop can operate in two modes as well:
- Running on all gen-sets - if BTB is closed
- Running in two independent groups - if BTB is opened
- All controllers are interconnected by one CAN bus all the time, disregarded if BTB is closed or open, no need for relays reconnecting the CAN bus.
- Complete system is remotely controlled and supervised from Control room connected via company LAN and IG-IB to all controllers.
Scope of supply: