Thermal Examination of Vacuum Circuit Breakers and Surge Protection Devices for 110 kV Electric Switchboard

A. A. Sarlybayev, P. Yu. Zhuravlev


The connection scheme and characteristics of high-voltage equipment of 110 kV closed switchgears were considered for ladle furnace units (LFU) of the electric steel melting shop #1, 2 of PJSC Magnitogorsk Iron and Steel Works. It was noted, that operating mode of the vacuum circuit breakers (VCB) is associated with frequent switching caused by the technological process of the LFU. The characteristic of high-voltage surge protection device (SPD) is given, characteristic defects arising during operation are named. The results of VSB's thermal imaging examination are presented, the efficiency of the method is proved. The results of the SPD thermal imaging control performed by comparing the temperatures of the assemblies included in different phases, as well as by comparing the thermal state of the varistors of one assembly are considered. As a result of the conducted studies, the expediency of periodic thermal imaging control of VCB and SPD in combination with on-line monitoring was confirmed. The requirements for continuous monitoring system of the electrical equipment technical state are justified. It is proved, that the most informative method of diagnostic control of SPD is continuous monitoring of root-mean-square values of current harmonic components.

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Sarlybaev A.A. Description of Systems for Continuous Condition Control of Furnace Transformers, Russian Internet Journal of Electrical Engineering, 2016, vol. 3, no.1, pp. 24-35. (in Russ.). DOI: 10.24892/RIJEE/20160102

Karandayev А.С., Evdokimov S.A., Khramshin V.R., Lednov R.A. Diagnostic Functions of a System for Continuous Monitoring of the Technical Condition of the Transformers of Arc Steelmaking Furnaces [Diagnosticheskie funktsii sistemy nepreryvnogo kontrolya tekhnicheskogo sostoyaniya transformatorov agre-gatov dugovykh staleplavil'nykh pechey], Metallurgist, 2014, vol. 58, iss. 7-8, pp. 655–663. DOI: 10.1007/s11015-014-9972-5

Karandayev А.С., Evdokimov S.A., Khramshin V.R., Sarlybaev A.A. System of diagnostic monitoring of technical condition of the transformer of an arc steel-making furnace [Sistema diagnosticheskogo monitoringa tekhnicheskogo sostoyaniya transformatora dugovoy staleplavil'noy pechi], Elektro. Elektrotekhnika, elektroenergetika, elektrotekhnicheskaya promyshlennost' [Journal ELEKTRO. Elektrotekhnika, elektroenergetika, elektrotekhnicheskaya promyshlennost'], 2014, no.4, pp. 27-33. (in Russ.)

Karandayev А.С., Evdokimov S.A., Khramshin V.R., Sarlybaev A.A. System for Real-Time Monitoring of the Technical State of a Transformer on an Ultrahigh-Power Electric-Arc Steelmaking Furnace [Sistema operativnogo kontrolya tekhnicheskogo sostoyaniya transformatora sverkhmoshchnoy dugovoy staleplavil'noy pechi], Metallurgist, 2015, vol. 58, iss. 9-10, pp. 872–879. DOI: 10.1007/s11015-015-0010-z

Karandaeva O.I. Performance of Damageability of Network and Block Transformers of Joint-Stock Company Magnitogorsk Iron and Steel Works, Bulletin of South Ural State University. Series "Power Engineering", 2011, no.4, pp. 15-20. (in Russ.)

Lukyanov S.I., Karandaev A.S., Evdokimov S.A. et al. The Development and Implementation of Intelligent Systems for Electrical Equipment State Diagnostics [Razrabotka i vnedrenie intellektual'nykh sistem diagnostirovaniya tekhnicheskogo sostoyaniya elektricheskogo oborudovaniya], Vestnk MGTU im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University], 2014, no.1, pp. 129-136. (in Russ.)

Karandaev A.S., Evdokimov S.A., Sarlibaev A.A., Lednov R.A. Requirements to the monitoring system of ultra-high power electric arc furnace transformer performance, Russian Internet Journal of Industrial Engineering, 2013, no.2, pp. 58-68. (in Russ.). DOI: 10.24892/RIJIE/20130209

Karandaev A.S. Information and Measuring System for Electric Arc Furnace Transformer Monitoring, 12th International Conference on Actual Problems of Electronic Insrument Engineering (АPEIE-2014), Novosibirsk, 2014, vol.1, pp. 273-279. DOI: 10.1109/APEIE.2014.7040896

Thermal imaging control of OPN [Teplovizionnyy kontrol' OPN], Energetika. Oborudovanie. Dokumentatsiya [Energetika. Equipment. Documentation] (available at:

Ogranichiteli perenapryazheniya do 110kV [Limiters of overvoltage up to 110kV], OOO "SINTEL ELECTRIC". Available at:

Teplovizionnaya diagnostika vysokovol'tnogo elektrooborudovaniya [Thermal imaging diagnostics of high-voltage electrical equipment], Pergam-Engineering JSC. Available at:

RD 34.45-51.300-97. Ob''em i normy ispytaniy elektrooborudovaniya [RD 34.45-51.300-97. Scope and standards of electrical equipment testing], Alekseeva B.A., Kogan F.L., Mamikonyants L.G. (Eds.), Moscow, Publishing house of NTs ENAS, 2004. Available at:

RD_34455130097_Obem_i_normy_is.html. (in Russ.)

Budadin О.N., Bazhanov S.A., Zuyev V.I. et al. Thermal imaging control and diagnostics of electrical equipment [Teplovizionnyy kontrol' i diagnostika elektrooborudovaniya], Energosluzhba predpriyatiya [Energosluzhba enterprise], 2003, no.4. (available at: (in Russ.)

Teplovizionnoe obsledovanie OPN [Thermal imaging examination of arresters]. Available at: (in Russ.)

Dmitriev V. Diagnostics of arrester in operation [Diagnostika OPN v ekspluatatsii], Novosti elektrotekhniki [News of electrical engineering], 2007, no.5. (available at: (in Russ.)

MU 0632-2006. Metodicheskie ukazaniya po diagnostike elektricheskikh apparatov, raspredelitel'nykh ustroystv elektrostantsiy i podstantsiy [MU 0632-2006. Methodical instructions for the diagnosis of electrical apparatuses, switchgears of power stations and substations], Concern "ROSENERGOATOM", 2006. (in Russ.)

Instruktsii po ekspluatatsii oborudovaniya podstantsiy [Instructions for the operation of substation equipment]. Available at: (in Russ.)

Tok provodimosti i tekhnicheskoe sostoyanie OPN [Conductivity current and technical condition of OPN], OOO "Baltenergo". Available at: (in Russ.)

Sistema distantsionnaya monitoringa OPN pod rabochim napryazheniem "SDKTU". Tekhnicheskoe opisanie i rukovodstvo po ekspluatatsii [Remote monitoring system for surge arresters under operating voltage "SDTTU". Technical description and user manual]. Available at: (in Russ.)



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