Paper Title:
A Novel SPD Design for Lightning Protection of Intelligent Buildings
  Abstract

The surge protective device (SPD), as buildings over-voltage protective device, has been widely used in building’s power distribution system. A novel SPD based on hollow cathode effects is designed. In both air and nitrogen gas, the relationship of discharging voltage and gas pressure are measured, and the critical pressure ranges are determined in the condition of UpUp is pulse voltage protection level). The results indicate that, in the condition of the gap distance D=3 mm and the small hole diameter φ=3 mm, the operating gas pressure ranges are from 50 to 5×104 Pa. With the gap distance D increasing, the pulse voltage protection level Up is decreasing slightly. While D=3 mm, φ=3 mm, and gas pressure (nitrogen) is 600 Pa, the DC voltage protection level and pulse protection level are 784 V and 2.4 kV, respectively. In the action of 10/350 µs pulse current waveform, the quantity of transferred charge Q is 48.26 C, and the ratio energy W/R is up to 2 MJ/Ω. The results testify that the design of SPD in this paper can be used as buildings class B over-voltage protection.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 9: Continuity of Architecture History Context
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
3344-3347
DOI
10.4028/www.scientific.net/AMR.368-373.3344
Citation
W. Sun, Y. Li, D. Lu, X. G. Zhao, Y. Yu, "A Novel SPD Design for Lightning Protection of Intelligent Buildings", Advanced Materials Research, Vols. 368-373, pp. 3344-3347, 2012
Online since
October 2011
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Price
$32.00
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