Electrical Requirements for Industrial Buildings- Part Two

[ali hassan]

any designer wants to optimize his design for industrial buildings by
completely satisfying the users’ individual needs for these buildings
which are:

1- Workshop and office flexibility.
2-Production facility availability, continuity of service.
3- Time, investment and operating cost control.

these needs must be satisfied in the following three levels of
electrical design for power distribution architecture which are:

1- General distribution.
2- Sub-distribution.
3- Final distribution.

Actually, Each industrial site has its own particular needs and
requires a specific type of power distribution architecture based on
the following principles:

1- Cost optimization, which is closely, linked to the location of the
MV/LV substations,
2- Availability, which is primarily governed by the higher levels of
the architecture,
3- Flexibility, which is based mainly on the sub-distribution and
final distribution design.

These principles can be applied in different types of power
distribution architecture, especially in the common three types which
are:

1- "Radial branched" power distribution architecture,
2- "Dual-transformer shared" power supply distribution architecture,
3- "Multiple-transformer shared" power distribution architecture.

the first type of power distribution architecture; "Radial branched"
was explained before in a previous topic and today I will continue
explaining the other two types as follows:

"Dual-transformer shared" power supply distribution architecture.

This power supply distribution architecture meets the needs for
increased flexibility and availability for all industrial buildings.

The electrical design levels in this power distribution architecture
will be as follows:

to read more, please follow the link in below and get you copy of
basic preliminary design checklist + advanced preliminary design
checklist

http://alihassanelashmawy.blogspot.com/2012/01/specific-electrical-requirements-for.html