Chapter A General rules of electrical installation design

D34
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D - MV & LV architecture selection guide
12 Example: electrical installation
in a printworks
12.5 Choice of technological solutions:
Choice Main criteria Solution
MV/LV substation Atmosphere, environment indoor (dedicated premises)
MV switchboard Offer availability by country SM6 (installation produced in
France)
Transformers Atmosphere, environment cast resin transfo (avoids
constraints related to oil)
LV switchboard Atmosphere, IS MLVS: Prisma + P
Sub-distribution: Prisma +
Busbar trunking Installed power to be
supplied
UPS units Installed power to be
supplied, back-up time
Power factor correction Installed power, presence of
harmonics
“2 substation” solution
Ditto apart from:
LV circuit: 2 remote MLVS connected via busbar trunking
MV
LV
Fig. D31 : Detailed single-line diagram (2 substations)
Schneider Electric - Electrical installation guide 2008
Canalis KS
Galaxy PW
MLVS 1 MLVS 2
Sheddable
ASI
Offices
LV, standard, automatic
(Average Q, ease of
installation)
Trunking Trunking
HVAC
MV
LV
Machines