GineersNow Construction Leaders Magazine June 2017 Issue 003, Bechtel

HIMOINSA emergency power in just
7 seconds for the Doha Festival City
Doha Festival City, a world-class destination in
Qatar celebrating the best in entertainment, retail
and hospitality, has ensured the continuity of its
power supply by installing generator sets that
start up in record time in the event of a failure in
the electricity grid.
Occupying 670,000 square metres in the very
heart of the Middle East, Doha Festival City will
be home to more than 500 stores, including over
100 restaurants, and a world-class entertainment
complex, with both indoor and outdoor
attractions unique to Qatar. This comprehensive
mix of entertainment– from Qatar’s first VOX
4D cinema complex with 18 digital screens, to
four unique theme parks, including “Angry Birds
World”, “Snow Dunes” - Qatar’s first indoor snow
park, “Juniverse” – an edutainment park for
children and “Virtuocity” which has been created
exclusively for teens and adults.
With footfall expected to exceed 1.6 million
people per month, safety and the proper
operation all business units at Doha Festival City
will heavily rely on a system capable of supplying
power in the event of an emergency. Not only
that, such a system must meet the requirements
that the Qatar Civil Defence has envisaged for
public spaces.
To feed such a huge complex and to respond
quickly in the event of a power cut, HIMOINSA
has supplied five generator sets, which each
supply 1.736 kVA of stand-by energy. Thanks to
a detailed programming study of its control units,
and after having subjected the units to multiple
highly demanding tests, HIMOINSA is able to
guarantee a synchronised start-up in just seven
seconds, which in fact exceeds the project’s
technical specifications.
Objective: To guarantee an uninterrupted supply
of electricity with generator sets capable of
starting up in synchronicity with 100% of the load
and in less than 10 seconds in the event of a
failure in the supply of electric power.
Solution: Five HTW-1745 T5 generator sets
that supply a total of 8.7MVA of stand-by power
and respond seven seconds after any power
failure. The units feature Mitsubishi engines and
Stamford alternators that have been oversized
and fitted with sophisticated control systems
that synchronise the gensets. The gensets are
also prepared to work in a maximum ambient
temperature of 55 degrees centigrade.
50 Construction Leaders • June 2017