YANG Zhiyi, LONG Jinxing. Research on Thermal Expansion and Contraction of GIS Treated by Flexible Support[J]. High voltageapparatus, 2017, 53(11): 105-108.
YANG Zhiyi, LONG Jinxing. Research on Thermal Expansion and Contraction of GIS Treated by Flexible Support[J]. High voltageapparatus, 2017, 53(11): 105-108. DOI: 10.13296/j.1001-1609.hva.2017.11.017.
With the wide application of the gas-insulated metal-enclosed switchgear(GIS)
the long bus is often encountered.Especially for the outdoor installation of large power stations
there is a great difference in temperature
the compensation of thermal expansion and contraction of bus is especially important.The 110 kV Changge South substation engineering of Xuchang
Henan Province as an example
the thermal expansion and contraction of the GIS bus is analyzed and calculated.A method of compensation with flexible support is presented.Finite element simulation method is used to calculate the maximum displacement of flexible support and strength.The calculation results show that the flexible support can meet the thermal compensation requirements of straight bus
effectively ensure the safe and reli-able operation of the product.