Seismic interaction in linearly connected electrical substation equipment

10.1002/eqe.9 ◽  
2001 ◽  
Vol 30 (3) ◽  
pp. 327-347 ◽  
Author(s):  
A. Der Kiureghian ◽  
J. L. Sackman ◽  
K-J. Hong
Keyword(s):  
Substation Equipment ◽  
Electrical Substation

scholarly journals A Wireless System for Monitoring Leakage Current in Electrical Substation Equipment

IEEE Access ◽  
2016 ◽  
Vol 4 ◽  
pp. 2965-2975 ◽  
Author(s):  
N. Harid ◽  
A. C. Bogias ◽  
H. Griffiths ◽  
S. Robson ◽  
A. Haddad
Keyword(s):  
Leakage Current ◽  
Wireless System ◽  
Substation Equipment ◽  
Electrical Substation

Substructured Dynamic Testing of Substation Disconnect Switches

2016 ◽  
Vol 32 (1) ◽  
pp. 567-589 ◽  
Author(s):  
Mohamed A. Moustafa ◽  
Khalid M. Mosalam
Keyword(s):  
Degrees Of Freedom ◽  
Dynamic Testing ◽  
Flexible Structures ◽  
Shaking Table ◽  
Support Structure ◽  
Six Degrees Of Freedom ◽  
Out Of Plane ◽  
Qualification Testing ◽  
Substation Equipment ◽  
Electrical Substation

The paper demonstrates the substructuring concept in seismic qualification testing of 550 kV electrical substation disconnect switches. In this study, the full and substructured (i.e., without support structure) switches are tested on a six degrees of freedom (DOFs) shaking table. Different combinations of translational and rotational excitations are obtained from full switch tests and used in the substructured ones. The behavior of the post insulators of the switches are compared to demonstrate validity and identify limitations of the substructuring concept applied to electrical substation equipment. From this comparison, critical DOFs for the response of post insulators in switches supported on flexible structures are identified. It is concluded that the in-plane and out-of-plane behavior of the investigated post insulators are uncoupled. The substructured tests driven by combined translational and rotational signals showed the best match with the full switch tests because the out-of-plane rotations contribute significantly to the response of the post insulators.

scholarly journals Reliability of Latvian Power System’S 330 KV Substations

2014 ◽  
Vol 51 (3) ◽  
pp. 15-23 ◽  
Author(s):  
V. Nepomnyaschiy ◽  
J. Gerhards ◽  
A. Mahnitko ◽  
T. Lomane
Keyword(s):  
Power System ◽  
Electric Power ◽  
Reliability Analysis ◽  
Probabilistic Approach ◽  
Electric Power System ◽  
Topical Problem ◽  
Emergency Situations ◽  
Reliability Calculation ◽  
Substation Equipment ◽  
Electrical Substation

Abstract Substation reliability is always a topical problem. The authors consider the techniques for reliability calculation based on logical-probabilistic approach to the evaluation of electrical substation switchgear schemes and equipment at emergency situations with disconnections of individual elements of the substation equipment or false operation of relay protection and automation devices. Based on the reliability analysis made for the 330kV substations of Latvian Electric Power System, recommendations are given concerning the reconstruction of switchgear schemes for some substations

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