000020308 001__ 20308
000020308 005__ 20170118182408.0
000020308 04107 $$aeng
000020308 046__ $$k2017-01-09
000020308 100__ $$aZhong, Min
000020308 24500 $$aSeismic Performance Study of Composite Insulator Assembled in 1 000 Kv Capacitor Voltage Transformer By Quasi-Static Test and Shaking Table Test

000020308 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020308 260__ $$b
000020308 506__ $$arestricted
000020308 520__ $$2eng$$a Insulators are main structural elements for many kinds of equipment in electrical substations. Traditionally, insulators used in substations are made of porcelain, which are vulnerable in earthquake events due to the brittleness of porcelain material. In recent years, insulators made of fiberglass reinforced polymer have gained great importance for better mechanical properties. However, studies on seismic performance of electrical equipment which assembles composite insulators are still limited. This paper studies mechanical properties and seismic performance of hollow core composite insulators by impact test, quasi-static bending test and shaking table test. Full scale composite insulators assembled in 1 000 kV capacitor voltage transformer, which is so for the highest voltage level, are taken as specimens. Flexural stiffness, vibration modes and damping ratio are obtained from bending test and impact hammer test of composite insulators. Failure mode of the insulator under static bending load is observed, which is mainly failure of metallic flange. These parameters are employed in seismic modeling of the 1 000 kV capacitor voltage transformer and seismic response of the equipment is analyzed. In the last, shaking table test of the equipment is carried out as validation, which proves that the numerical model built in this paper has a high overall accuracy in seismic response prediction. The study gains insights on the performance of composite insulators and provides an example for seismic performance evaluation of composite insulators, which are meaningful seismic design of electrical substation. The study also points out that increasing the strength of metallic flange should be a major consideration for further seismic performance improvement of composite insulators in this scale.

000020308 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020308 653__ $$ashaking table test, quasi-static test, electrical equipment, composite insulator, capacitor voltage transformer

000020308 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020308 720__ $$aZhong, Min$$iZhu, Zhubing$$iLu, Zhicheng$$iCheng, Yongfeng$$iLi, Sheng
000020308 8560_ $$ffischerc@itam.cas.cz
000020308 8564_ $$s850358$$uhttps://invenio.itam.cas.cz/record/20308/files/946.pdf$$yOriginal version of the author's contribution as presented on USB, paper 946.
000020308 962__ $$r16048
000020308 980__ $$aPAPER