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Interruption property of vacuum interrupter with four different contact materials were researched by experimental method. The diameter of Wan-type contact and Spiral-type CuCr25 contact was 55mm. The diameter of Spiral-type CuCr35 and CuCr30 was 58mm. The contact thickness was 10mm before breaking test and the contact thickness was about 9mm after breaking test. The breaking current was 31.5kA and...
The objective of this paper is to optimize a 3/4 coil-type axial magnetic field (AMF) contact design used for 126 kV vacuum interrupter. Through central composite design and finite element calculation, axial magnetic field characteristics and loop resistance of the contact system with various design parameters were obtained. Four contact parameters including coil width w, coil height h, air gap width...
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