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Additional information
Practical information
PD391283.eps
Principle of the Prisma P solution
Prisma P simplifies the installation of source changeover systems.
The “source changeover” solution is an integral part of the Prisma P offering and is
designed for all installation cases: 2 or 3 devices side by side or 2 superimposed
devices.
The page opposite shows a few examples of installation in cubicles:
bb
1 normal source/1 replacement source
bb
2 normal sources with coupling (priority and non-priority circuits)
bb
2 normal sources + 1 replacement source with coupling (priority and non-priority,
circuits).
Note that our configuration software can be used to produce the switchboard front
panel drawings.
For each source changeover configuration, various combinations of normal and
replacement source circuit breakers and switch-disconnectors are possible:
bb
1 normal source/1 replacement source:
v
NS630b to NS1600 / NS630b to NS1600
v
NT / NT
v
NT / NW
v
NW / NT
v
NW / NW
bb
2 normal sources with coupling:
vv
NW / NW / NW
vv
NT / NT / NT
vv
NW / NW / NW
bb
2 normal sources + 1 replacement source with coupling:
NW / NW / NW / NW or NT.
Tables in the catalogue indicate the possible combinations “normal” and
“replacement” devices according to the rating as well as the types of interlocking
available for the different types of devices.
Highly economical vertical configurations are possible even for the largest devices.
In this case, interlocking may be:
b
mechanical by cable + motor mechanism
b
via rotary handles (for NS630b/1600 only).
To define the number of modules required to install superimposed devices, all you
have to do is add up the number of modules required for each device with:
b
its connections
b
its cover and its partitioning.
For combination possibilities and installation details, refer to the “Source changeover
- Compact NSX100-630, Compact NS630b-1600, Interpact, Masterpact" catalogue
LVPED208007EN.
Source changeover system in the same cubicle.
DD381617.eps
Source changeover system in 2 combined cubicles.
PD391284.eps
Installation of source
changeover systems