Ключевое слово: «reliability»
Skryabin V. V., Yegorov P. N., Yegorova A. N. RECONSTRUCTION OF RELAY PROTECTION AND AUTOMATION DEVICES FOR AN AUTOTRANSFORMER AT A 220 KV SUBSTATION WITH REPLACEMENT OF MICROPROCESSOR-BASED PROTECTION SYSTEMS // Научно-методический электронный журнал «Концепт». – 2025. – . – URL: http://e-koncept.ru/2025/0.htm
This article describes reconstruction of relay protection and automation (RPA) systems for an autotransformer at a 220 kV substation. It provides an assessment of the RPA system today, a case for modernization, and options for equipment. The analysis entails the quantitative characteristics of the calculated protection, as well as the economic feasibility of introducing domestic microprocessor-based protection devices. The article describes the basic principles of relay protection, its functional features, and the effectiveness of modern solutions.
Ключевые слова:
reconstruction, automation, relay protection, autotransformer, microprocessor-based devices, reliability, power supply.
Zakharov N. O., Prokopeva S. I. TECHNICAL AND ECONOMIC FEASIBILITY OF REPLACING OIL CIRCUIT BREAKERS WITH VACUUM CIRCUIT BREAKERS AT THE YAKUTSKAYA GRES POWER PLANT // Научно-методический электронный журнал «Концепт». – 2026. – . – URL: http://e-koncept.ru/2026/0.htm
Авторы:
N. O. Zakharov, S. I. Prokopeva
N. O. Zakharov, S. I. Prokopeva
This paper presents a comprehensive study justifying the replacement of obsolete and physically deteriorated oil circuit breakers (OCBs) of the VMP-10 series with modern vacuum circuit breakers (VCBs) of the BB/TEL-10 series at the Yakutskaya State District Power Plant (GRES). The research methodology included an analysis of the technical condition of the existing switchgear, short-circuit current calculations, verification of equipment for thermal and electrodynamic stability, reliability analysis, and an assessment of economic efficiency.
