Foshan, China
Foshan, China

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Wang H.-Y.,GCA Co. | Zhang J.-M.,GCA Co. | Lu Y.-C.,GCA Co. | Zeng S.-J.,GCA Co. | And 2 more authors.
Gaoya Dianqi/High Voltage Apparatus | Year: 2011

For the cable accessories with spring pressure system, discharge is easy to happen if the interface contact stress is insufficient, and the cable insulation necking is able to appear if the interface contact stress is too large. This paper has confirmed the spring pressure required by the interface when dry type GIS terminations use silicone stress cone for 220 kV XLPE cable through electrical performance test. Reliability of the spring system designed has been verificated by cold and hot test. At last, under the combined action of spring pressure and interference fitting, the interface contact stress is calculated by ANSYS.


PubMed | GCA Corporation
Type: Journal Article | Journal: Applied optics | Year: 2010

It is shown that, if Fabry-Perot interferometers are to be used for the measurement of doppler widths of emission lines, exact knowledge of the plate reflectivity is required so that synthetic profiles may be calculated. If hyperfine structure or isotope structure is present, the data reduction may be tedious. It is shown that electronic analysis of the signal generated by a scanning interferometer will lead directly to a displayed measurement of the doppler temperature, and that the effects of hyperfine structure, isotope structure, Lorentz broadening, nonflatness of the plates and the finite size of the scanning aperture may all be compensated exactly. The performance in marginal circumstances has been calculated using the derived equations, and the system is shown to be capable of high accuracy.


PubMed | GCA Corporation
Type: Journal Article | Journal: Applied optics | Year: 2010

Some applications of vacuum uv radiation to basic research problems are discussed, with emphasis on the interaction of vacuum uv radiation with gases and solids.

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