Operation of nuclear industry facilities
Article Name | Analysis of Boundary Conditions of Sustainable Ferrosontic Process Flow in 24 KW Chains of Generator Voltage of NPP Power Units |
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Authors | S.А. Baran, V.V. Nechitajlov, V.V. Krasnokutskij |
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Address | Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University “MEPhI”,
Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360
1 ORCID: 0000-0002-3232-4072
WoS Researcher ID: I-7933-2018
e-mail: bastr@rambler.ru
2 ORCID: 0000-0002-6795-2458
WoS Researcher ID: J-3646-2018
e-mail: VITIkafAE@mephi.ru
3 ORCID: 0000-0002-4498-2996
WoS Researcher ID: I-4045-2018
e-mail: leronil@mail.ru
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Abstract | The network generator voltage is operated using with isolated neutral, and line-to-ground fault is not short circuit. Ground-fault protection more often works on signal, but in some cases shutdown network protection occurs. Analysis of the causes of power unit shutdowns by the action of ground-fault protection showed that some of them were false and occurred as a result of the appearance of stable ferroresonance processes in the circuit. Passing of ferroresonance processes is possible at a certain ratio of the parameters of the electrical circuit. The paper deals with the boundary values of the total inductance and capacitance of the circuit, in which a stable ferroresonance process can occur in the circuit, the parameters of the equivalent circuit of the NPP power unit are calculated, the oscillograms of processes in a single-phase ground fault are considered, the resistor is selected for effective grounding of the neutral. |
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Keywords | ferroresonance, generator voltage, isolated neutral, voltage transformer, overvoltage |
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Language | Russian |
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References | [1] Baran S.A., Nechitajlov V.V., Krasnokutskij V.V Vozniknovenie ferrorezonansa v cepyax 24 kV generatornogo napryazheniya e`nergoblokov AE`S [Ferroerezonans Emergency in the 24 kW Generator Voltage Circuits of NPP Units] [Global Nuclear Safety]. 2018. № 2 (27). Р. 56-65 (in Russian).
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Papers | 69 - 79 |
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URL Article | URL Article |
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| Open Article |
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