Alstom to present paper ‘EHV and UHV bushing design optimisation from a safety point of view’
France, Levallois-Perret: Alstom will soon present the paper ‘EHV and UHV bushing design optimisation from a safety point of view'.
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France, Levallois-Perret: Alstom will soon present the paper ‘EHV and UHV bushing design optimisation from a safety point of view’.
Paolo Cardano, transformer expert at Alstom says that resin high-voltage insulators with a composite casing can mitigate explosion, fire and leakage in high power transformers. According to Cardano, the popularity of these Alstom insulators known as ‘bushings’ will increase. Approximately a quarter of those in Alstom are of the resin type.
“Even though the resin type was introduced 20 years ago, that’s still relatively recent in the power transmission and distribution industry.” says Cardano.
“Given that the typical service life of a transformer bushing is 30 years, the industry is still evaluating its performance. From our perspective, however, a resin bushing with a composite casing is the safest option and I believe it will soon become the norm in Europe, if not the world. In the case of such a bushing – a glass tube with a silicon shell, for example, the only damage from an explosion would be a crack to the casing.“ he said.
“When a bushing fails, there could be huge damages to surrounding machines and people, easily resulting in loss of life. All of the bushing types we offer at Alstom Passoni Villa have passed the test but even so, some are still safer than others.” Cardano added.
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