High power device for the electric safety of metallic structures

Author

Lingvay, Iosif ; Banu, Viorel ; Lingvay, Carmen ; Rauta, Ioana ; Apostolescu, Mihai ; Stoian, Florin

Author_Institution

Inst. for Adv. Res. in Electr. Eng., Bucharest, Romania

Volume

2

fYear

2001

fDate

37165

Firstpage

547

Abstract

A hybrid high-power solid-state device, voltage limiter and having a fast switching rate, has been conceived and built. The device copes in forward polarization with hazardous overcurrent impulses up to 1800 A for 1s and 120 to 40 A-depending on the type-also for 1s, in reverse polarization. The device was checked at lightning impulses (20/8 μs) at a peak current of 100,000 A. Due to its electric performances (in static, dynamic and switching regimes) the new device can be utilized in diverse applications such as: electric safety assurance for metallic structures, control of corrosion of underground metallic pipelines due to the electromagnetic pollution of the soil (DC and AC stray currents) also

Keywords

Schottky diodes; Zener diodes; corrosion protection; fault current limiters; lightning protection; overcurrent protection; power semiconductor diodes; power semiconductor switches; safety; 40 to 100000 A; 8 mus to 1 s; AC stray currents; DC stray currents; corrosion control; electric safety; electric safety assurance; fast switching rate; forward polarization; hazardous overcurrent impulses; high-power Schottky diode; high-power Zener diode; hybrid high-power solid-state device; lightning impulses; metallic structures; power resistor; protection device; reverse polarization; underground metallic grids; underground metallic pipelines; urban utilities distribution; voltage limiter; Corrosion; Electrical safety; Electromagnetic devices; Lighting control; Lightning; Optical polarization; Pipelines; Safety devices; Solid state circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Conference, 2001. CAS 2001 Proceedings. International

Conference_Location

Sinaia

Print_ISBN

0-7803-6666-2

Type

conf

DOI

10.1109/SMICND.2001.967526

Filename

967526