Open AccessResearch of potential on the grounding device in the network with low-impendance resistive neutral grounding
Author(s) -
S. S. Chervonchenko,
Andrey S. Brilinskiy
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/643/1/012057
Subject(s) - ground , transient (computer programming) , earthing system , relay , electrical engineering , resistive touchscreen , current (fluid) , voltage , power (physics) , electric power system , engineering , computer science , physics , quantum mechanics , operating system
The paper discusses the possibility of low-impendance (combined) neutral grounding in the 10-35 kV air network, suggests the logic of the relay protection against single-phase ground faults, and also based on computer simulation of transient processes, the potential of the low voltage network is estimated depending on the current circuit to ground, resistance values of the grounding device and network configuration 0.4 kV. The study is carried out by modeling the real part of the power system of St. Petersburg and the Leningrad region, located in the north-east of the region. Directly considered the distribution network of 110 kV Substation Plodovoe (Substation №. 511).