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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

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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

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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

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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

rpv@alstom.com 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: rpv@alstom.com

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