any designer wants to optimize his design by completely satisfying the
individual needs of the building users, and in case of industrial
building design , these individual needs will be generally as
follows:
1- Workshop and office flexibility:Upgradeability and reorganization,
installation of new machines and modification of up to 50% of the
workshop areas every year.
2-Production facility availability, continuity of service:In the
metalworking industry for example, an unexpected break in production
can result in a loss of up to 100 K Euros for each hour of downtime.
3- Time, investment and operating cost control controlling Energy,
refurbishment and maintenance costs.
these needs must be satisfied in the following three levels of
electrical design which are:
1-General distribution.
2-Sub-distribution.
3-Final distribution.
these three levels construct what we called " Power distribution
architecture" which reviewed many times by the designer in order to
get it more optimized to ensure that the industrial facility runs
smoothly and operates to its maximum potential.
Power distribution architecture
Each industrial site has its own particular needs and requires a
specific type of power distribution architecture to achieve the
following principles:
1- Flexibility, which is based mainly on the sub-distribution and
final distribution design
2- Availability, which is primarily governed by the higher levels of
the architecture.
3- Cost optimization, which is closely, linked to the location of the
MV/LV substations.
Types of Power distribution architectures in industrial buildings:
The famous Power distribution architectures in industrial buildings
will be as follows:
"Radial branched" power distribution architecture
"Dual-transformer shared" power supply distribution architecture.
"Multiple-transformer shared" power distribution architecture
it is a very long article, so to read more, please follow the below
link:
http://alihassanelashmawy.blogspot.com/2012/01/specific-electrical-design-requirements.html