Application of modified passive insulation monitors for selective earth fault location in live low voltage AC IT circuits

• Autorzy: Olszowiec Piotr

Identyfikatory

DOI

10.24136/jeee.2024.003

• Języki publikacji: EN

Abstrakty

EN

In the publication there are presented most popular passive methods of continuous insulation monitoring in live low voltage unearthed AC networks. There are given formulas for determination of insulation equivalent resistance for multi-phase networks sources with both symmetrical and asymmetrical voltages. Novel solution of elimination of the most popular measuring scheme’s shortcomings is proposed. New methods of insulation resistance measurement and earth fault location based on supervision of test current flow imposed by modified diode rectifier scheme are presented.

Słowa kluczowe

EN

AC IT networks; diode rectifier; earth fault location; insulation resistance; mean value

• Wydawca: Uniwersytet Radomski im. Kazimierza Pułaskiego
• Czasopismo: Journal of Automation, Electronics and Electrical Engineering
• Rocznik: 2024
• Tom: Vol. 6, No. 1
• Strony: 31--40
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Olszowiec Piotr

• Raczynskiego 17, 28-200 Staszów, Poland

Bibliografia

• [1] Hofheinz W.: “Protective Measures with Insulation Monitoring”, VDE Verlag, 1998.
• [2] Tsapenko E.F. “Kontrol izolacji w sietiach do 1000 V” [Insulation monitoring in networks up to 1000 V]. Moscow, Energia, 1972 (in Russian).
• [3] Tsapenko E.F. Zamykania na ziemliu w sietiach 6-35 kV [Earth faults in networks 6-35 kV]. Moscow, Energoatomizdat, 1986 (Rus).
• [4] Olszowiec P. Novel Passive Methods of Periodical Insulation Resistance Determination In AC/DC IT Systems JAEEE vol.5, no.1/ 2023
• [5] Olszowiec P.: Unconventional Methods of Analyzing Diode Rectifiers with Asymmetrical Supply, Computational Problems of Electrical Engineering, 2/2014.
• [6] Olszowiec P.: O wyznaczaniu napięć trójfazowych prostowników diodowych [Determination of voltages of 3-phase rectifiers]. Wiadomości Elektrotechniczne, 10/2015 (Pol).
• [7] Olszowiec P.: Insulation Measurement and Supervision in Live AC and DC Unearthed Systems, Lecture Notes in Electrical Engineering, 2nd edition, Springer 2014.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).