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1
GRID
Bushings Expertise up to 1200 kV
BUSHINGS
Alstom Grid offers a large portfolio of con-denser bushings for AC or DC operation:
Epoxy resin bonded paper up to 36 kV for generators Oil-impregnated paper for voltages up to 1200 kV for power transformers and through-wall applications
SF6 insulated up to 800 kV for GIS, GIL and through-wall.
RIP - resin Impregnated Paper Bushings for power transformers
Motivated to provide you with innovative and superior quality products, our vision remains focused on meeting customer requirements while anticipating and exceeding the needs of a continuously changing market.
Customer Benefits• Advanced R&D department • Full property of production
technology and know-how• Bushing with longer lifetime
and higher reliability• No performance reduction
with age• Decades of on-site experience
For all applications, Alstom Grid bushings represent a cost-effective solution to facilitate the electric stress control of your equipment.
Together with our customers towards the future
Alstom Grid began producing capacitance-graded bushings in 1924 and is recognized today as one of the most reputable manufacturers in the world.
With top quality products, numerous worldwide references and capacity to innovate, Alstom Grid is also one of the first supplier of 1,100 kV in China!
Looking for a company you can trust to tame your power?
AN ALSTOM COMPANY
2
For all applications, we offer cost-effective solutions :
Expert in HV condenser bushingsAll the winding machines used for condenser bushings production are computer controlled and have been specifically designed and developed for that purpose by Alstom Grid.
EXPERTISE UP TO 1200 kV BUSHINGS
Oil-to-air, for the connection to the HV Transmision or Distribution System
Oil-to-oil, for the connection to HV cables
Oil-to-SF6, for the connection to the SF6 metal enclosed bus ducts
Oil-to-air, high current (up to 30,000 A, 36 kV) with Aluminum inner conductor for bus duct connection.
AC or DC application
Porcelain or composite envelope both sides
Synthetic impregnating oil or SF6 filled
Partial discharges < 5 pC at 1.5 Un
Provided with power factor tap
Flange of aluminium alloy casting
Execution with solid conductor
For horizontal or vertical installation
Power transformers
Through-wall Air-to-air, for indoor and outdoor service
RIPOil to Air
OIPOil to Air
RIPOil to Air
OIPOil to SF6
OIPOil to Air
OIPOil to Oil
OIPAC-Air to Air
Gas InsulatedDC-Air to Air
3
EXPERTISE UP TO 1200 kV BUSHINGS
Outer envelopes: Porcelain and/or Fiberglass tube
Cooling: Natural, hydrogen, water
Coupling by means of a Belleville washer placed on the air side
Inner conductor made of aluminum or copper casting
Dry filling (polyurethane foam) of the space between the porcelain and condenser boby
Installation in any position
CT accommodation on request
Flange made of aluminum or stainless steel, low permeability
Power generator Turbo-generator, hydrogen or water cooling up to 30 kV, 45.000 A
GIS SF6-to-air, for the connection between GIS, GIL, Dead tank circuit breakers and the HV Alstom Grid System
PASSONI & VILLA supplies these bushings according to SF6 insulation technology:
• SF6 filled for voltages from 72.5 to 300 kV and condenser-type made of SF6 impregnated polypropylene film for voltages more than 300 to 550 kV for applications
• SF6-to-air, for the connection between GIS, GIL, Dead tank circuit breakers and the HV network.
RBPgenerator bushings
Gas InsulatedSF6 to Air
Grid
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2011
-03-
EN ©
- Al
stom
Grid
- 20
11. A
lsto
m G
rid, t
he A
lsto
m G
rid lo
go a
nd a
ny a
ltern
ativ
e ve
rsio
n th
ereo
f are
trad
emar
ks a
nd s
ervi
ce m
arks
of A
lsto
m G
rid. A
ll tr
ade
nam
es o
r tra
dem
arks
men
tione
d he
rein
w
heth
er re
gist
ered
or n
ot, a
re th
e pr
oper
ty o
f the
ir ow
ners
. - 3
8919
1982
RCS
PAR
IS O
ur p
olic
y is
one
of c
ontin
uous
dev
elop
men
t. Ac
cord
ingl
y th
e de
sign
of o
ur p
rodu
cts
may
cha
nge
at a
ny ti
me.
Whi
lst e
very
effo
rt is
mad
e to
pro
duce
up
to d
ate
liter
atur
e, th
is b
ro-
chur
e sh
ould
onl
y be
rega
rded
as
a gu
ide
and
is in
tend
ed fo
r inf
orm
atio
n pu
rpos
es o
nly.
Its c
onte
nts
do n
ot c
onst
itute
an
offe
r for
sal
e or
adv
ise
on th
e ap
plic
atio
n of
any
pro
duct
refe
rred
to in
it. W
e ca
nnot
be
held
resp
onsi
ble
for a
ny re
lianc
e on
any
dec
isio
ns ta
ken
on
its c
onte
nts
with
out s
peci
fic a
dvic
e.
EXPERTISE UP TO 1200 kV BUSHINGS
E.R.B.P.
oil-to-air transf. bushings24-36 kV
O.I.P.
R.I.P.SF6
generator bushingsUp to 36 kV
PGFE PTFR/PTHR
52-170 kV
PNR
52-550 kV
PABS
800 kV DC
PWS
Air-to-air
72.5-420 kV
PWO
Oil-to-oil
72.5-1050 kV
PCTO
Oil-to-SF6
72.5-1050 kV
POBO
Oil-to-air transformer bushings
25-765 kV
PAO
52-245 kV
PSO
52-1200 kV
PNO
Following the acquisition of PASSONI & VILLA, Alstom Grid now offers a large portfolio of condenser bushings for AC or DC operation. If you require any further information, please address your queries to
[email protected] AN ALSTOM COMPANY
GRID
Alstom Grid Worldwide Contact Centre www.grid.alstom.com/contactcentreTel.: +44 (0) 1785 250 070 www.grid.alstom.com
To contact the manufacturerViale Suzzani, 229 20162 MILANO (Italy)Tel.: +39 (0)2 661 221Fax: +39 (0)2 647 09 06Email: [email protected]
Alstom Gridadvantages
One source for all bushings type up to 1200 kV
Improved reliability
Short delivery time even for higher creepage bushings
Easy transport and installation
State-of-the-art technology
Customers preferred product
International expertise in UHV