Device Degradation by High Amplitude Currents and Response Characteristics of Discrete Resistors

Tasca, Dante M.; Wunsch, Donald C.; Domingos, H.

doi:10.1109/tns.1975.4328161

Cited by 5 publications

(3 citation statements)

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“…General overvoltage suppression circuit [10,11] The series impedance Z2 limits the surge current. This series impedance is usually a resistor and inductor [10,[12][13] where during normal operation it has low impedance so that signal is not attenuated. When surge appears, it will be at high impedance due to the high surge frequency and parasitic inductance and capacitance [12,13].…”

Section: Surge Protection Componentsmentioning

confidence: 99%

“…This series impedance is usually a resistor and inductor [10,[12][13] where during normal operation it has low impedance so that signal is not attenuated. When surge appears, it will be at high impedance due to the high surge frequency and parasitic inductance and capacitance [12,13]. The parallel or shunt impedance Z1 and Z3 is to divert the surge current away from the load, Z Load and clamp the output voltage to protect the connected load, Z Load.…”

Section: Surge Protection Componentsmentioning

confidence: 99%

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Behavioral studies of surge protection components

2021

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In our daily life, almost all the items we used, being a computer, television, lift or vehicle we drive consist of some kind of electrical or electronics component inside. The operation of these devices could be severely affected by lightning activity or electrical switching events, as there are more than 2000 thunderstorms in progress at any time resulting in 100 lightning flashes to ground per second. In practice, any device using electricity will subject to surge damages induced from the lightning or switching of heavy load. Surge protection device (SPD) is added at the power distribution panel and critical process loop to prevent damage subsequently cause plant shutdown. There are many questions raised on the SPD. How can this small device protect the equipment from large energy release by the lightning? What is inside the device? How does it work? This paper provides comprehensive detail in revealing the science and engineering behind the SPD, its individual component characteristic and how does it work. The technical information presented is limited to surge protection on equipment; surge protection for building structure will not be discussed here.

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Section: Surge Protection Componentsmentioning

confidence: 99%

Section: Surge Protection Componentsmentioning

confidence: 99%

Behavioral studies of surge protection components

2021

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“…Therefore, the shorter the pulses are with respect to the time needed to heat up the resistor body the less relevant is its heat capacity for the pulse load behavior. Very short pulses with high peak power can lead to temperature peaks close to the melting point of the resistor alloy in a hidden way which can nevertheless severely affect the durability [5,6].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the pulse load behavior of power wire-wound resistors

Nicolics

Fasching²

2009

2009 32nd International Spring Seminar on Electronics Technology

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A long-term resistance drift of wire-wound resistors or even afailure is frequently caused by short but repeated temperature peaks during pulse load operation. In this paper this aspect is investigated by comparison oftwo types ofpower wire-wound resistors with identical resistance value, nominal power, and size, but significantly different thermal behavior under pulse load condition. In order to capture the thermal cause as directly as possible a specific measuring circuit was developed to record the temperature as afunction of time in the resistor wire during the dynamic cooling phase immediately after a pulse. In this way a peak temperature of e.g. 405°C was observed in one resistor type whereas the peak temperature in the other one at the same pulse load condition exceeded even 1000°C which is undoubtedly detrimental if periodically repeated. The measuring principle is presented in detail. The measuring accuracy is estimated and its meaning for the interpretation ofthe obtained results is shown. Based on these results the dependence ofthe pulse load resistivity ofa wirewound resistor on its interior structure is discussed. It is demonstrated that the pulse load performance can be improved significantly by increasing the thermal capacitance of the resistor wire without increasing the resistor size.

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Radio Frequency Attacks

Quisquater¹,

Samyde²

Encyclopedia of Cryptography and Security

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Device Degradation by High Amplitude Currents and Response Characteristics of Discrete Resistors

Cited by 5 publications

References 0 publications

Behavioral studies of surge protection components

Behavioral studies of surge protection components

Investigation of the pulse load behavior of power wire-wound resistors

Radio Frequency Attacks

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