Submit an Article
Become a reviewer
Vol 178
Pages:
126-129
Download volume:
RUS

Relevance of application of centralized protection with inverse dependent time-current characteristic of RXIDG type for networks with resistive neutral groundi

Authors:
M. A. Bychin
About authors
  • G.V. Plekhanov Saint Petersburg Mining Institute
Date submitted:
2007-11-18
Date accepted:
2008-01-24
Date published:
2008-11-18

Abstract

It is necessary to use considerably highomed resisters because of there are requirements to restrict over voltage by voltage 6-35 kilovolts with the resistive ground neutral to the same meaning in the networks. It makes usage of traditional protection from ground short circuit based on a current curve principle is inefficacious. Special characteristics of current curve the type RXIDG realized on digital relay are offered to use for these purposes. For these protections valuation of sensibility was done and the fields of using for opposite dependence characteristics in dependence on dimensions of networks was viewed. There is necessity for these devices of protections nonlinear characteristic of current curve under perfect tooling for protection of the networks 6-35 kilovolts considerably highomed ground neutral ground short circuit in the article.

Go to volume 178

References

  1. Виштибеев А.В. О длительности работы резистора для заземления нейтрали в электрических сетях 6-35 кВ / А.В.Виштибеев, Н.И.Емельянов, М.В.Ильиных, Л.И.Сарин; Труды Второй всероссийской научно-технической конференции «Ограничение перенапряжений и режимы заземления нейтрали сетей 6-35 кВ». Новосибирск, 2002.
  2. Евдокунин Г.А. Выбор способа заземления нейтрали в сетях 6-10 кВ / Г.А.Евдокунин, С.В.Гудилин, А.А.Корепанов // Электричество. 1998. № 12. С.8-22.
  3. Титенков С.C. Четыре режима заземления нейтрали в сетях 6-35 кВ. Изолированную нейтраль объявим вне закона // Новости электротехники. 2003. № 5.

Similar articles

Pilot diagnostics of mining machines transmissions state by parameters of electric drive supply
2008 A. A. Poddubnaya, A. S. Fokin, S. L. Ivanov, A. S. Ivanov, M. A. Semenov
Determination of operation modes of step mine drainage systems without intermediate water collectors
2008 O. V. Kabanov, D. A. Zadkov, S. O. Kabanov
Determination of quantity of coal grains by equations of total characteristic of coarseness
2008 A. B. Nezametdinov
Calculation of parameters of pipe-water transportation of hydraulic mixtures with high concentrations of solid phase
2008 V. I. Aleksandrov, V. P. Pirozhenko, P. B. Gurkin
Increase of reliability of machines and mechanisms operation in underground constructions of cryolithozone
2008 A. F. Galkin
Increase of accuracy of humidity measurement of bulk materials by dynamic thermovacuum method
2008 O. M. Bolshunova, M. A. Semenov