High voltage measurement transformer for suspension from a high voltage switching apparatus

A high voltage switching apparatus having a high voltage measurement transformer constructed conjointly with a current converter component in a head portion of the high voltage measurement transformer, comprising:

• at least one primary terminal provided on the current converter component;
• electrical and mechanical attachment means provided on the current converter component and situated proximate to said at least one primary terminal;
• means for detachably attaching said high voltage measurement transformer by said electrical and mechanical attachment means provided on the current converter component to a predeterminate portion of the high voltage switching apparatus;
• said high voltage measurement transformer being constructed as an independent detachable component;
• said electrical and mechanical attachment means suspending said high voltage measurement transformer from said predeterminate portion of said high voltage switching apparatus in a region of said at least one primary terminal of said current converter component;
• an electrical current conductor provided for said current converter component;
• said electrical current conductor defining a primary conductor;
• said electrical current conductor extending through said high voltage measurement transformer;
• said current converter component comprising secondary components;
• said electrical current conductor being surrounded by said secondary components;
• said current converter component comprises a primary winding;
• said electrical current conductor being connected with said primary winding;
• said primary winding and said secondary components of said current converter component are insulated from one another by a solid insulating material;
• said solid insulating material being located between said primary winding and said secondary components;
• said solid insulating material having a primary side and secondary side;
• said solid insulating material being provided with a first electrically conductive coating on said primary side thereof and a second electrically conductive coating on said secondary side thereof;
• a third electrically conductive coating being arranged between said first electrically conductive coating and said second electrically conductive coating;
• and
• said third electrically conductive coating forming conjointly with said first and second electricaly conductive coatings a capacitive voltage divider.

A high voltage measurement transformer for high voltage switching apparatus, comprising:

• a current converter component situated in a predetermined portion of the high voltage transformer;
• two primary electrical connection terminals for said current converter component, one of said primary electrical connection terminals being situated in a predeterminate region of the current converter component;
• connection means for mechanically and electrically connecting the high voltage measurement transformer in a detachable manner to a predeterminate component of the high voltage switching apparatus;
• and
• said connection means suspendingly and detachably supporting the high voltage measurement transformer as an independent unit in said predeterminate region of the current converter component from said predeterminate component of the high voltage switching apparatus.