000020023 001__ 20023
000020023 005__ 20170118182351.0
000020023 04107 $$aeng
000020023 046__ $$k2017-01-09
000020023 100__ $$aNawrotzki, Peter
000020023 24500 $$a3-D Base Control Systems for Substation Equipment

000020023 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020023 260__ $$b
000020023 506__ $$arestricted
000020023 520__ $$2eng$$aEquipment, like air core reactors, switch yard structures, capacitor banks or platforms, in electrical substations frequently consists of sensitive material or a vulnerable assembly. In areas with high seismicity special seismic protection measures are required as electricity is of extreme importance for the operation of lifeline structures as hospitals, emergency centers and power plants. The experience in earthquake protection of machinery and buildings, as discussed in [1], can also be applied to substation equipment. This article illustrates basic principles of 3-dimensional Base Control Systems (BCS). These systems consist of elements with helical steel springs and viscous dampers. Depending on the project specific details spring elements with special stiffness properties, e.g. as described in [2], in combination with an increase of damping are used to reduce the seismic accelerations levels of the supported structures. Practical examples present the high efficiency of the suggested control system for the protection of equipment against seismic impacts in horizontal and vertical direction. Details of the seismic protection of air core reactors, located in a high seismic zone in California, USA are discussed as well. The main mass is placed on a substructure consisting of ceramic footings and stiffening steel cradles. The footings are extremely fragile and in danger of failure during a seismic event. The seismic requirements are related to [3]. For the seismic protection the base cradle is arranged on a BCS leading to a significant improvement of the seismic behavior of the important equipment.

000020023 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020023 653__ $$aseismic protection; passive control; base control system; substations

000020023 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020023 720__ $$aNawrotzki, Peter$$iSiepe, Daniel
000020023 8560_ $$ffischerc@itam.cas.cz
000020023 8564_ $$s778793$$uhttps://invenio.itam.cas.cz/record/20023/files/4954.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4954.
000020023 962__ $$r16048
000020023 980__ $$aPAPER