Electronic voltage transformer with high anti-interference capability
2011
The utility model relates to an electronic voltage transformer with high anti-interference capability. On the basis of an existing pillar type SF6 gas insulated transformer, only a suspended potential cylinder and a related structure need to be added. Coaxial capacitors of the electronic voltage transformer are located in an insulating sleeve basically, and are far away from a primary conductor, possibility of breakdown is greatly reduced, all the coaxial capacitors use the insulating sleeve as an axis to form a vertical coaxial capacitor structure, and reliability and stability are enhanced. The coaxial capacitors are achieved by using a mode for forming the suspended potential cylinder, and the anti-interference capability of the electronic voltage transformer is greatly improved. Finally, the electronic voltage transformer with the high anti-interference capability achieves simultaneous detection of current and voltage, is compact in structure and high in accuracy, and greatly reduces cost.
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