Air insulated compact substations

With the known greenhouse effect of SF6-insulated substations, the aim now is to reduce the size of transmission substations using air-insulated designs. In this work, a 400 kV compact substation layout is proposed adopting the lower IEC basic insulation level and switching impulse level, and consequently reduced clearances. Simulation studies using EMTP are performed to evaluate the lightning and switching performance of the proposed compact substation using different surge arrester locations and ratings. Further proposals for compaction are investigated through the introduction of innovative high voltage equipments. A preliminary evaluation of the percentage space saving achieved with some of the illustrated compact solutions is presented.

[1]  C. E. Solver,et al.  Modular SF/sub 6/ circuit-breaker for modern HV substations , 1998, POWERCON '98. 1998 International Conference on Power System Technology. Proceedings (Cat. No.98EX151).

[2]  Volker Hinrichsen,et al.  Metal-oxide surge arresters integrated in high-voltage AIS disconnectors : an economical solution for overvoltage protection in substations , 2001 .

[3]  F. Rahmatian,et al.  Applications of Optical Current and Voltage Sensors in High-Voltage Systems , 2006, 2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America.

[4]  Volker Hinrichsen,et al.  Integrated surge arrester systems , 2005 .

[5]  J. Panek,et al.  Substation Voltage Upgrading , 1989, IEEE Power Engineering Review.

[6]  AIEE Committee Report.  A Guide for Minimum Electrical Clearances for Standard Basic Insulation Levels [includes discussion] , 1954, Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems.

[7]  W. Lannes,et al.  230 kV Operation of a Substation Designed for 115 kV by Controlling Voltage Transients , 1984, IEEE Transactions on Power Apparatus and Systems.

[8]  P. L. Bellaschi,et al.  Minimum Line-To-Ground Electrical Clearances for EHV Substations Based on Switching Surge Requirements , 1972 .

[9]  K. Bohnert,et al.  Fiber-Optic Current and Voltage Sensors for High-Voltage Substations , 2003 .

[10]  P. P. Chavez,et al.  SF/sub 6/-free 550 kV combined optical voltage and current transducer system , 2003, 2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495).

[11]  A. Colombo,et al.  Research and experimental characterization of alternative materials to reduce the environmental impact of some electrical distribution equipment , 2005 .

[12]  A. Ametani,et al.  A method of a lightning surge analysis recommended in Japan using EMTP , 2005, IEEE Transactions on Power Delivery.