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Vegetable oil is considered as the alternation of traditional mineral oil serving as the insulation medium due to the considerable dielectric property and the excellent biodegradation. In this paper, thermal step method (TSM) was applied to analyze the space charge distribution in the insulating vegetable oil reinforced with BN nanoparticles. BN nanoparticles with different mass fractions were dispersed...
Vegetable oil is considered as the substitute of traditional mineral oil serving as the insulation medium due to the considerable dielectric property and the excellent biodegradation. The vegetable oil filled with boron nitride (BN) nanoparticles showed significant improvement in both thermal and dielectric properties in previous study. Thereby, in this paper, the experiment for space charge measurement...
Vegetable oil is based on natural ester oil, which is considered as the alternate natural source of traditional mineral insulating oil in electrical transformers. The oil applied in transformers performs dual functions of insulating and cooling materials. The purpose of this paper is to obtain a new type of nano-modified vegetable oil with both improved dielectric and thermal properties. Boron nitride...
It mainly depends on the anti-aging performance whether heat-shrinkable tubes for busbar can maintain excellent electrical and mechanical properties during long term operation. In this paper, the samples were applied to the switchgear busbar of 10 kV and 35 kV in substations of Tianjin Power System. Their operating time is 0, 1, 2, 9 years and 0, 4, 6 years respectively. Tensile strength (breaking...
In this paper, the controlled I-V (IVctrl) method is adopted for the barrier integrity characterization of TSVs at wafer level. Planar capacitor structures are used for the initial validation of the IVctrl method with respect to the traditional time dependent dielectric breakdown (TDDB) methodology. The TDDB field acceleration factor of the TSV liner is extracted by IVctrl in a reasonable time, and...
A high performance CMOS HK/MG sub 1nm EOT solution is demonstrated. The drive currents at Ioff = 100 nA/μm with VDD = 1 V are 1.25 mA/μm and 0.56 mA/μm for n and pMOS respectively without strain boost. Through a novel process integration design, PMOS EWF roll-off and NBTI problems with EOT scaling are overcome until sub 1nm EOT region. The PMOS -0.25V Vt @1um Lg and NBTI 10 years life time @0.7V overdrive...
We demonstrate that microstructures inside the cladding of phosphate fiber as well as sub-wavelength nanostructures inside the fiber core can introduce birefringence in phosphate glass fiber components.
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