Determination of Shock Transformer Parameters for Short-Circuit Current Withstand Tests

  • Nikolay А. BESHENTSEV
  • Vasiliy S. LARIN
  • Evgeniy A. MILKIN
  • Dmitriy A. TIMOHINA
DOI: https://doi.org/10.24160/0013-5380-2023-8-23-29
Keywords: experimental base, shock generator, shock transformer, peak withstand current, short-term withstand current, short-circuit current

Abstract

The work is aimed at developing the domestic experimental base of large capacities. The article presents the results of studies on determining the technical characteristics of a dedicated test transformer included in the circuit of the TI-100-2 shock generator and intended for significantly increasing the capabilities of the experimental base for testing high-voltage equipment for peak and short-term withstand short-circuit currents. The study included an analysis of inductive loads of the main types of equipment tested: circuit breakers, disconnectors, gas insulated switchgears, low-inductive and inductive current transformers, generator bus ducts, and outdoor switchgear busbars. Test current values are calculated depending on the test transformer transformation ratio in varying the inductive reactance of the main types of equipment tested, taking into account the TI-100-2 shock generator internal limitation in terms of peak and short-term current. The variation range of the dedicated test transformer transformation ratio has been determined, the use of which will make it possible to enhance the domestic experimental base testing capabilities.

Author Biographies

Nikolay А. BESHENTSEV

(All-Russian Electrotechnical Institute – Branch of FSUE ”RFNC-VNIITF n.a. academ. E.I. Zababakhin”, Moscow, Russia) – Lead Test Engineer.

Vasiliy S. LARIN

(All-Russian Electrotechnical Institute – Branch of FSUE ”RFNC-VNIITF n.a. academ. E.I. Zababakhin”, Moscow, Russia) – Head of the Transformer Dept., Cand. Sci. (Eng.)

Evgeniy A. MILKIN

(All-Russian Electrotechnical Institute – Branch of FSUE ”RFNC-VNIITF n.a. academ. E.I. Zababakhin”, Moscow, Russia) – Deputy Director of VEI, Head of Research and Testing of High-Voltage Equipment Division

Dmitriy A. TIMOHINA

(All-Russian Electrotechnical Institute – Branch of FSUE ”RFNC-VNIITF n.a. academ. E.I. Zababakhin”, Moscow, Russia) – Test Engineer.

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Published
2023-05-25
Issue
No 8 (2023): Issue № 8
Section
Article