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GE’s Digital Commander Paralleling Switchgear (PSG) is a leading solution to simple and very complex systems due to its design flexibility and reliability. GE has been providing customer facilities with reliable power switching systems for decades. Since the inception of paralleling switchgear, hundreds of installations have been supplied with a focus on providing reliability. Digital Commander is a new system design that has evolved and adapted to the changing technologies in engine generator design, switchgear controls and monitoring systems. It reflects GE’s continuing commitment to reliable solutions for critical power applications.
Mission critical facilities may be best served by paralleling two or more generator sets. Paralleling Switchgear will monitor the status of the incoming utility and will automatically start the generators if the utility is experiencing power fluctuations or an outage. Under parallel operation any available generator may be used to support the load. In the event of a generator failure, the paralleling switchgear can redirect available generator capacity to the load designated with the highest priority, allowing a generator failure to not interrupt power to the most critical loads.
Paralleling power sources allows a facility a wide variety of choices in the generation, distribution and utilization of the system’s power.
When one engine – generator set is out of service for maintenance or repair, having others synchronized on the same bus can provide the needed back-up power, should an outage occur.
Savings can be realized on the application when a number of smaller sets would be less expensive than one large set or when the load makes it impractical to divide into several sections, each with its own generator. Savings can also occur on the operation side when generator set life is extended from being used only when needed to support the load. Also, when it is anticipated that the load will grow significantly in the future, the capital investment can be reduced by starting with small sets and paralleling additional units as load increases dictate.
The Digital Commander provides the following functions as standard: