The MGIM is a standard multiple generator emergency standby system.
The system may consist of 2 or up to 8 generators paralleled to a
common bus.
A system master control will enable all of the generators to start
simultaneously and parallel on a first-up-first-on basis. This system is
also known as random access paralleling.
A system master control will monitor and control each generator's
paralleling breaker as well as other breakers associated with the
emergency system. The master control is the central control device that
will provide load sharing between generators so that all generators carry
proportionally, an equal amount of the total load on the emergency bus.
The
master control also provides automatic load shedding in the event of a
generator failure to prevent the entire system from being overloaded.
Another feature the master control performs is load demand. In the load
demand mode master control will automatically shut off generators that are
not required if the total load on the emergency bus is less than the total
generating capacity.
The intelligent decisions made by the master control during the system
operation are based on the program that is being executed in the
programmable logic control (PLC). The PLC is the brain of the system and
is programmed to meet the specific needs of the customer. The PLC is very
a versatile device and can be modified in the field to meet the changing
needs of the customer. The MGIM is configured in a modular fashion
and therefore customers can easily add generators to their system as their
needs grow.
The MGIM is available in the following sizes and enclosures: