Pyrotechnic Switch with Fuse Function

Authors

  • A. Ehrhardt DEHN + SÖHNE
  • S. Wolfram TU Ilmenau

DOI:

https://doi.org/10.14311/ppt.2019.1.91

Keywords:

fuse, pyrotechnic switch, impulse current, numerical simulation, SPD

Abstract

The article will present the combination of a low-voltage fuse with a pyrotechnic switch in compact design. The limited switching capacity of the very simple pyrotechnic switch is increased considerably when combined with a fuse which has classical passive time/current characteristic and high switching capacity. FEM calculations will demonstrate the functional principle and the passive and active characteristics of functional models will be examined. Switching behaviour with different overcurrents in case of passive or active triggering will be discussed on the basis of measuring results. The behaviour of such a fuse with high impulse currents will also be presented.

References

IEC 616272-105 High-voltage switchgear and controlgear – Part 105: Alternating current switch-fuse combinations, March 2002.

R. Ranjan. Current surge protector for power fuses. U.S. Patent 4807082(A), May 14, 1987.

M. Koprivsek. Triggered fuse. In 10th ICEFA, pages 69–78, September 2015.

H. Bessei and F. Glinka. Smart fuses for smart grids: Considerations about the need, potential product features and feasibility. In 10th ICEFA, pages 79–86, September 2015.

K. H. Hartung and V. Schmidt. Limitation of short circuit current by an IS - Limiter. In 10th EPQU, September 2009.

D. Rochette, W. Bussière, and R. Touzani. Modelling of the pre-arcing period in hbc fuses including solid - liquid - vapour phase changes of the fuse element. In 64th IEEE Holm Conference on Electrical Contacts, pages 87–93, September 2007. doi:10.1109/ICEFA.2007.4419972.

IEC 61643-11 Low-voltage surge protective devices – Part 11: Surge protective devices connected to low-voltage power systems – Requirements and test methods, March 2011.

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Published

2019-07-31

Issue

Vol. 6 No. 1 (2019)

Section

Articles

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