Abb Technology Ag

Urs Baur

Walter Holaus

Ales Vrana

Miguel Garcia

The invention pertains to a current transformer (') for enclosed, gas-insulated high-voltage switchgear (). According to the invention, a current transformer (&#x2032;) is characterized in that a removable installation flange (&#x2032;) is provided on a fill opening () of the core carrier () for one-piece current transformer cores (). Among other things, embodiments pertain to: a removable installation flange (&#x2032;) in the form of a two-part clamping flange () or in the form of a one-piece rotary flange (&#x2032;) that is screwed on the fill opening () similar to a bayonet catch. Among other things, the attained advantages are: radially increased installation space for one-piece current transformer cores (); reduced diameter (d) for one-piece current transformer cores () and reduced structural volume of the current transformer casing ().

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Rafz, Switzerland

Urs Baur