Abstract:For intrinsically safe circuits, if the circuit contains an active impedance conversion circuit, when judging the intrinsic safety performance of the circuit, not only the effect of physical inductance and physical capacitance, but also the affect of simulated inductance and simulated capacitance must be considered. Based on the analysis of the rationale of the simulated inductors and the simulated capacitors, this paper quantified and classified their "potential" hazards by calculating the energy of physical energy storage components and simulated energy storage components respectively. And on this basis, this paper used the reference curves and the data for evaluating the safety of intrinsically safe circuits, starting from the perspective of explosion-proof safety of intrinsically safe circuits. The intrinsic safety evaluation criteria of analog inductance and analog capacitor circuits are established, so as to achieve the purpose of correctly evaluating the impact of analog energy storage components on the explosion-proof safety of the intrinsically safety circuits.
孟庆海, 田媛. 本质安全电路模拟储能元件潜在危险性分析及其本质安全判据[J]. 电工技术学报, 2022, 37(3): 676-685.
Meng Qinghai, Tian Yuan. Analysis of Potential Hazards of Analog Energy Storage Components in the Intrinsic Safety Circuits and Their Intrinsic Safety Criteria. Transactions of China Electrotechnical Society, 2022, 37(3): 676-685.
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