Page 53 - Industrial Plant 2020

echnological and energy efficiency is an The yard is located in the horn of Africa, in an area that
increasingly recurring need for those is hardly accessible to the national electricity grid, that
who must design and maintain a plant, is feed by Low Voltage Generators composing the
of any nature it may be. The attention of power plant. The power supply of the yard is done
investors is increasingly focusing on through a step up 20kV Medium Voltage distribution
T high performances in an ever lower system that is transformed from Medium to Low
time frame, which makes the most of technology, voltage (400V), to feed motors of Downstream Material
consumption control and related efficiency, so that Handling plant.
production results can be optimized to the best.
Electrical distribution and automation systems are
In consideration of that, attention to efficiency does not realized in modular solutions, ready to use, such as
only focus on the “CAPEX” perspective, but also, and containerized substations engineered to guarantee 15
above all, on the OPEX perspective. In order to years of operating resistance for all the electrical
maximize the investment and the maintenance of the equipment, installed in an environmental conditions
plants, the entire industrial production supply chain is with temperatures between 20 and 55 °, at humidity
concentrating in this direction, both regarding the rates close to 100%.
design and the identification of the high performance
products, that can be monitored in terms of To guarantee these conditions, the substations are
consumption and performances. CSC/RINA permanently certified, to have their
mechanical structure more robust and make them
suitable for multiple maritime transports; moreover, they
The context and the plant have been treated with special corrosion-resistant
philosophy painting cycles, as well as being conditioned with
redundant industrial cooling systems.
Costruzioni Elettrotecniche Cear finds itself in the
situation of getting solutions in the electro- technical
and instrumental field that meet these specific needs of
maximizing plant efficiency.
On the occasion of a “turnkey” supply, complete of the
electrical distribution and the automation system of a
crushing and handling plant of aggregates and concrete
for the construction of a dam, Cear provided a system
equipped with components and programming systems
for monitoring the energy and the production efficiency
of the plant.

In a turnkey contract for
the supply of the electrical
distribution and automation system
of a crushing and handling plant of
aggregates and concrete
for the construction of a dam,
Cear provided a system equipped
with components and softwares
for monitoring the energy
and production efficiency The “Upstream” system
The electrical distribution system is studied with the aim
The supply was studied with the aim of adapting it to of having the control and monitoring of consuption and
the environmental conditions of the site and necessarily adeguate energy efficiency.
to be easily installed. This latter could be described as This latter is composed by five 20kV Medium Voltage
follows: an “upstream” side consisting of the electrical distribution substation that have to feed other seven
distribution system composed by electrical and MV/LV transformer substations, equipped with
transformation substations, that have the purpose of transformers of 15-20 / 0.4 kV with sizes ranging from
feeding the “downstream” side, consisting of the 800KVA to 1600KVA.
automation system for crushing and production of
aggregates and concrete. In order to be able to control all electrical devices and

IndustrIal Plants - May 2020
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