ABB GSC 200, Installation And Maintenance Manual

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Installation and maintenance guide
1ZSC000563-AAX EN, REV. A, 2019-03-21
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9 Disposal and environmental information
9.1 Overview
This chapter specifies the materials used in the bushing. Comply with local environmental regulations on
disposal of this product, the materials used are specified for this purpose.
9.2 Disposal and recycling
ABB strives to minimize the product's impact on the environment throughout its entire life cycle. Technical
and product development focuses on environmental aspects. The ecocycle approach is striven for, and
consideration is taken to the materials' environmental impact and recycling alternatives. The manufacturing
processes are selected to be as safe for the environment as possible.
Disposal of worn-out equipment
Worn-out equipment must be disposed of in an environmentally sound manner.
Much of the material, or the energy content in the material, can be recycled if it is sorted and cleaned. The
quantity of material that can be recycled varies depending on the technical resources and capabilities in each
country. Non-recyclable components should be sent to an approved environmental waste treatment plant for
destruction or disposal.
The GSC bushing is delivered in a wooden box with a metallic tube on the oil side for moisture protection.
The GSC bushing consists of the following:
The composite insulator consists of silicone rubber on a tube of glass fiber reinforced epoxy. Between the
insulator and the condenser core there is silicone gel.
Resin impregnated paper condenser core containing mainly epoxy, creped paper and an embedded conductor
tube in aluminum or copper. The core also contains a smaller quantity of aluminum foil inserts, rubber
bonded cork, rubber seals, braided copper wire (tinned), braided copper strap, silver glue and lead. By
crushing the core the conductor tube can be separated and sorted, while the rest of the core can be incinerated
in a suitable oven.
Removable flange in cast aluminum containing test tap, locking ring in aluminum, bolts in stainless steel and
O-rings in rubber. Unscrew the locking ring and slide the flange off to separate it from the condenser core.
O-rings fitted in the flange are easily removed.
Removable test tap containing test tap body in epoxy, test tap cover in aluminum, cable, contacts in brass and
O-rings. These components can easily be separated except for the embedded brass center bolt of the test tap
body. Crushing the test tap body can separate this bolt.
On the 20 kV voltage tap option the flange is filled with approximately 2 dl silicone gel. When flange is
separated from the condenser core this gel can be scraped out and separated.
Outer terminals of copper, brass or low-alloy aluminum may be plated with for instance silver, tin, gold or
nickel in layer thickness up to 20 μm. The bolts are made of stainless steel and O-rings in rubber. These
components can easily be separated.
The draw rod contains details made of aluminum, steel, brass and nylon. The bottom contact is made of pure
copper, the pulling ring and the bolts, of brass, and the O-rings of rubber. These components can easily be
separated.