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In order to make the vacuum circuit breaker used in high-voltage level, it is necessary to study the high voltage vacuum interrupter. This paper presented an axial magnetic field three quarters of the coil structure for high voltage level. Its axial magnetic field characteristics were calculated and analyzed with the Maxwell Ansoft software, The magnetic field produced by the structure is uniform,...
This paper introduces a new type TMF-AMF contact which used in high current interruption process. It has lower bulk resistance (3.28μΩ) of the conductive circuit compared with conventional one by introducing a 4 turn TMF coil and a 6 turn AMF coil. When the current is 1000A, the maximum value of B-field of radial TMF is 13.95mT, the maximum value of B-field of tangential TMF is 6.61mT, and the maximum...
We examined the effects of endogenous nitric oxide synthase (NOS) inhibition on pulmonary hemodynamics in awake sheep living at low and high altitudes to evaluate the role of NO in adaptation to an hypoxic environment. Unanaesthetized male sheep in three places-Matsumoto, Japan (680m above sea level), Xing, China (2300m) and Maxin, China (3750m)-were prepared for measurements of pulmonary artery (Ppa)...
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