ABB V-Contact VSC7/P

42
54
55
58
51
52
53
32
61
61
Fig. 20a
Fig. 20b
a) Mounting the adapters (fig. 20a)
Thefuseholder(32)(fig.20b)ispresettotakefuseswithfixing
centredistanceof553mm.Forsmallersizes,threeadapters
areneeded,asindicatedbelow:
– adapter(51)forfuseswithfixingcentredistance
l = 235 mm
– adapter(52)forfuseswithfixingcentredistance
l = 305 mm
– adapter(53)forfuseswithfixingcentredistance
l = 454 mm.
Selectthetypeofadapter,fixitontothefuseonthestriker
sidebymeansofthegrubscrews(54),thecupsprings(55)
andtheshortnuts(58).Mounttheadapterwiththeextension,
with the cap facing the striker.
The same instructions are given in the Kit sheet put in the
adapter packing.
Only position the grub screws (54) as shown
in the drawing.
b) Mounting the fuses (fig. 20b)
Mountthefusesortheadapter(preassembledasindicated
inpar.a)withthestriker,(indicatedbythearrow)facingthe
opposite side to the one of the contactor tulips and fix them
bymeansofthescrews(56)andthespringwashers(57).
c) Dismantling the fuses
Todismantlethefusesandrelativeadapters,proceedin
reverse order to par. b) and a).
d) Assembling and dismantling the VSC/PN and VSC/PNG
contactor fuses
It is also possible to use BS fuses with double cartridge
connected in parallel in the VSC/PN and VSC/PNG contactors
(fig.20c)andthereforeinserieswiththecontactor.The
assembly and dismantling operations are the same as what
isdescribedinsectionsa),b)andc)above,withtheonly
difference being to handle a pair of fuses per phase at the
sametime(fig.20c)connectedbymeansofasuitable
adapter.
Striker side
Fig. 20c
NEPSI.COM - Northeast Power Systems. Inc.