|
|
Performance Analysis of Seismic Shock Protection and Damping of GW7-252 Isolating Switch Based on ANSYS |
|
|
Abstract: The power failure during earthquake is usually caused by damages of high voltage equipment by the earthquake. Therefore, the vibration of electric structures should be reduced, to protect the electric system. In this paper, ANSYS software is applied to establish a finite element model of GW7-252 isolation switch, the time history for the resonance amplitude wave is analyzed according to the specifications of the device. The dynamical response of the original structure is discussed. A finite element damping model of the device with the shock absorbers developed by China Electric Power Research Institute is built, the simulated results are compared with those of the original structure. When the peak acceleration is changed from 0.15g to 0.465g, a seismic efficiency is varied from 37% to 75%. As the peak acceleration increases, the shock absorbers go into the process of plasticity energy consumption. When the peak acceleration is 0.465g, the safety factor of the isolating switch supporting porcelain is 0.41, but it becomes 1.72 with the shock absorbers. The results show that the shock absorbers are effective to reduce the structure vibration in earthquake. The metal shock absorbers designed by the passive energy dissipation method are easy to make and convenient to install, with good results. They can be widely used in high voltage electric equipment.
|
Received: 07 June 2010
|
|
|
|
[1] |
MENG Yangang, JIN Xueke, LU Panpan, WANG Haifu. Lethality Effects of Enhanced PELE of Reactive Materials[J]. journal1, 2014, 32(9): 31-35. |
[2] |
LIN Yi, HUANG Yunyan, SUN Keqin. Explorating Underground Cavity by Rayleigh Surface Wave[J]. Science & Technology Review, 2014, 32(32): 28-31. |
[3] |
YANG Yanguo, WU Qingwei, SHI Yajun, WANG Hongzhao. Calculation on the Height of Water Flowing Fractured Zone in a Coal Mine[J]. journal1, 2014, 32(3): 34-38. |
[4] |
YIN Qixiang, ZHOU Guoqing, WANG Tao, XIA Lijiang, LIU Yuyi. Numerical Simulation of Thermal Field in Permafrost Embankmentbridge Transition Section of Qinghai-tibet Railway Bridge[J]. journal1, 2014, 32(27): 43-48. |
[5] |
HUANG Si, YANG Fuxiang, SU Xianghui. Unsteady Numerical Simulation for Solid-Liquid Two-Phase Flow in Centrifugal Pump by CFD-DEM Coupling[J]. journal1, 2014, 32(27): 28-31. |
[6] |
ZHANG Deping, ZHAO Yao, SHI Xiaohui, LIU Zhenyi. Numerical Simulation of BLEVE Mechanism of Supercritical Carbon Dioxide[J]. journal1, 2014, 32(25): 46-50. |
|
|
|
|