Title :
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
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;
Conference_Titel :
Semiconductor Conference, 2001. CAS 2001 Proceedings. International
Conference_Location :
Sinaia
Print_ISBN :
0-7803-6666-2
DOI :
10.1109/SMICND.2001.967526
