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A Valve Magnetic System with Increased Operational Sensitivity of Overcurrent Release

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Abstract—Electromagnetic overcurrent releases have become widespread among electromagnetic devices in control systems and electrical energy distribution when protecting against negative effects of short-circuit currents. They should provide a high speed when the electrical circuit us broken in the emergency mode. This can be achieved with a small mass of a moving element and significant values of electromagnetic force. For the purpose of approximate determination of the characteristics, the methods of the theory of circuits are still widely used. By simplifying the structure of the magnetic field model, the conductivity of air gaps between ferromagnetic elements of the magnetic system can be determined with reasonable accuracy using a modified probable magnetic flux path method.

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REFERENCES

  1. Zaitsev, N.Yu., Petrov, V.N., Svintsov, G.P., and Sorokin, N.N., Calculation of a valve magnetic system of maximum current release of a circuit breaker, Russ. Electr. Eng., 2018, vol. 89, no. 8.

  2. Svintsov, G.P., Calculation of the conductivity of plane-parallel magnetic fields in air gaps by the modified Roters method, Izv. Vyssh. Uchebn. Zaved., Elektromekh., 1996, nos. 1–2.

  3. Svintsov, G.P., The modified method of Roters expected flow paths, Izv. Vyssh. Uchebn. Zaved., Elektromekh., 1995, nos. 5–6.

  4. Bronshtein, I.N. and Semendyaev, K.A., Spravochnik po matematike dlya inzhenerov i uchashchikhsya vtuzov (Handbook on Mathematics for Engineers and Students of Higher Technical Institutions), Moscow: Nauka, 1986.

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ACKNOWLEDGMENTS

The studies were carried out as part of a comprehensive project to create high-technology production at JSC ChEAZ.

Funding

The work was supported by the Ministry of Science and Education of Russia, agreement no. 074-11-2018-019 May 30, 2018.

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Authors and Affiliations

  1. Chuvash State University, 428000, Cheboksary, Russia

    N. Yu. Zaitsev, V. M. Maksimov, V. N. Petrov & G. P. Svintsov

  2. Cheboksary Electroapparatus Plant, Cheboksary, Russia

    N. N. Sorokin

Authors
  1. N. Yu. Zaitsev
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  2. V. M. Maksimov
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  3. V. N. Petrov
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  4. G. P. Svintsov
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  5. N. N. Sorokin
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Corresponding author

Correspondence to N. Yu. Zaitsev.

Additional information

Translated by G. Dedkov

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Zaitsev, N.Y., Maksimov, V.M., Petrov, V.N. et al. A Valve Magnetic System with Increased Operational Sensitivity of Overcurrent Release. Russ. Electr. Engin. 90, 549–552 (2019). https://doi.org/10.3103/S1068371219080108

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  • DOI: https://doi.org/10.3103/S1068371219080108

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