Capacity Reduction of Distribution Transformer by Harmonic Effect

2017 ◽  
pp. 195-204
Author(s):  
Yen-Ming Tseng ◽  
Li-Shan Chen ◽  
Jeng-Shyang Pan ◽  
Hsi-Shan Huang ◽  
Lee Ku
Keyword(s):  
Distribution Transformer ◽  
Capacity Reduction

FIRE RESISTACE OF SHEAR CONNECTORS FOR COMPOSITE BEAMS

2020 ◽  
Vol 92 (6) ◽  
pp. 59-65
Author(s):  
G.P. TONKIH ◽  
◽  
D.A. CHESNOKOV ◽  
◽  
Keyword(s):  
Fire Resistance ◽  
Composite Structure ◽  
Composite Structures ◽  
Composite Beams ◽  
Design Codes ◽  
Connection Strength ◽  
Shear Connectors ◽  
Shear Connection ◽  
Capacity Reduction ◽  
Russian Research

Most of Russian research about composite structure fire resistance are dedicated to the composite slab behavior. The composite beams fire resistance had been never investigated in enough volume: the temperature evaluation within the scope of the actual Russian design codes leads to the significant reduction in the shear connection strength. Meanwhile, there no correlation between the strength decreasing and type of the shear connection. The article provides an overview of the relevant researches and offers some approaches which could take into account bearing capacity reduction of the shear connectors within composite structures design.

THE SUPPORT BONDS RIGIDITY INFLUENCES ON THE CARRYING CAPACITY REDUCTION OF THE SHALLOW SHELLS ON A RECTANGULAR PLAN

2020 ◽  
Vol 92 (6) ◽  
pp. 3-12
Author(s):  
A.G. KOLESNIKOV ◽  
Keyword(s):  
Variable Thickness ◽  
Carrying Capacity ◽  
Geometric Nonlinearity ◽  
Progressive Collapse ◽  
Geometrically Nonlinear ◽  
Loss Of Stability ◽  
Shallow Shells ◽  
Capacity Reduction ◽  
Internal Forces ◽  
Hinged Support

Geometric nonlinearity shallow shells on a square and rectangular plan with constant and variable thickness are considered. Loss of stability of a structure due to a decrease in the rigidity of one of the support (transition from fixed support to hinged support) is considered. The Bubnov-Galerkin method is used to solve differential equations of shallow geometrically nonlinear shells. The Vlasov's beam functions are used for approximating. The use of dimensionless quantities makes it possible to repeat the calculations and obtain similar dependences. The graphs are given that make it possible to assess the reduction in the critical load in the shell at each stage of reducing the rigidity of the support and to predict the further behavior of the structure. Regularities of changes in internal forces for various types of structure support are shown. Conclusions are made about the necessary design solutions to prevent the progressive collapse of the shell due to a decrease in the rigidity of one of the supports.

Thermal Analysis For Distribution Transformer With ONAN Cooling System

2017 ◽  
pp. 202
Author(s):  
ابتسام أحمد الحسن أحمد
Keyword(s):  
Thermal Analysis ◽  
Cooling System ◽  
Distribution Transformer

scholarly journals Soft start-up scheme for the hybrid distribution transformer

2019 ◽  
Vol 2019 (16) ◽  
pp. 1958-1961
Author(s):  
Yibin Liu ◽  
Deliang Liang ◽  
Mingkang Zhang ◽  
Yang Liang ◽  
Qixu Chen ◽  
...  
Keyword(s):  
Distribution Transformer ◽  
Soft Start ◽  
Start Up ◽  
Hybrid Distribution
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