structural-economical design study on upgrading saravan-sooran double-circuit transmission system from 63 kv to 230 kv

مطالعات ساختاری- اقتصادی طرح ارتقای سیستم انتقال 63 کیلوولت دو مداره سراوان – سوران به سطح 230 کیلوولت

Upgrading the voltage level of a transmission line is named as one solution to increase the transmitted power. This paper introduces the results of a research project in which the upgrade of Saravan-Sooran double circuit transmission system from 63 kV to 230 kV is studied. In this context, the towers remain in their current locations, where the new structure of towers and insulators as well as ...

Field Testing, Modeling and Analysis of Ferroresonance in a 230 Kv Power System

Catastrophic equipment failures continue to occur today due to ferroresonance even though this phenomenon has been extensively studied over the past ninety years. This thesis is concerned with the task of defining where ferroresonance problems can exist in a 230 kV power system and determining methods for displaying safety margins between nonferroresonant and ferroresonant operating regions. Pr...

Measurement of the Magnetic Fields from High-Voltage (230 kV) Substations in Tehran and Assessment of Their Effects

Introduction: Recent industrial developments in human societies have caused rapid advancements in technologies of production and distribution of electricity, which in turn result in enhancement of power networks and utilization of high voltages. These networks and the high voltages in transfer lines cause the exposure to electric and magnetic fields. In this study, the situation regarding the m...

Surge arresters' circuit models review and their application to a Hellenic 150 kV transmission line

Metal oxide surge arresters are used to protect medium and high voltage systems and equipment against lightning and switching overvoltages. Measurements of the residual voltage of the metal oxide surge arresters indicate dynamic characteristics with the residual voltage to increase as the current front time descends and the residual voltage to reach its maximum, before the arrester current reac...

Design of 132 / 33 KV Substation

NoFTL-KV: TacklingWrite-Amplification on KV-Stores with Native Storage Management

Modern persistent Key/Value stores are designed to meet the demand for high transactional throughput and high data-ingestion rates. Still, they rely on backwards-compatible storage stack and abstractions to ease space management, foster seamless proliferation and system integration. Their dependence on the traditional I/O stack has negative impact on performance, causes unacceptably high write-...