نتایج جستجو برای: hvmv substation

تعداد نتایج: 1955  

Amin Mokari-Bolhasan Navid Taghizadegan-Kalantari,

Using IEC 61850 standard would increase the reliability and availability of electricity network and put a huge impact on network automation. Even though much research works has been done in substation system reliability, there is a few works in automated substation control system reliability. This paper evaluates the reliability of substation automation system based IEC 61850 comparatively cons...

2014
Chuanmin Chen Yang Gao Songtao Liu

With the government's emphasis on environmental issues of power transmission and transformation project, noise pollution has become a prominent problem now. The noise from the working transformer, reactor, and other electrical equipment in the substation will bring negative effect to the ambient environment. This paper focuses on using acoustic software for the simulation and calculation method...

2015
T.Vignesh J.Kirubakaran

Power management is an important constraint in the design of various loads in industries for automation. So if power consumption increases then the substation monitoring is very important for the purpose of controlling the hardware and software optimization with the help of PLC ladder logic system and SCADA were used. This technique in order to reach strong conclusion about their actual impact ...

2014
Saugata S. Biswas

With ongoing efforts to make the power grid smarter, there is a large emphasis on the automation and data analytics. Substation automation is a key enabling technology for online monitoring, diagnosis and prediction for the health condition of the substation assets. Circuit breakers (CB) are one of the most vital components in a substation for tripping action required during the fault occurrenc...

2005
Xuegong Wang

Circuit breakers can fail to interrupt fault current when the power system has transient recovery voltage (TRV) characteristics that exceed the rating of the circuit breaker. There were two incidents of failures of outdoor switchgear at a power plant substation. The cause of the failure for these breakers was investigated in order to determine if transient recovery voltage is a contributing fac...

2004

1. Project goals and objectives This project aimed at developing analytical models and methods for assessing the seismic response of electrical substation equipment connected by assemblies of rigid bus (RB) and flexible strap connectors (FSC) or slider connectors (SC). Also developed is a method to estimate the reliability of electrical substation systems subjected to stochastic earthquake load...

2013
Janne STARCK

This document describes the utilization of the nonconventional measurements and advanced features of IEC 61850 standard for substation automation systems, especially how sampled value sending according standard part 9-2 can be used between IEDs in mediumvoltage substation to improve the reliability and functionality of the system. Calculated results indicate improvements on availability, perfor...

 Insufficient electrical endurance of equipment and insulation failure against overvoltage is one of the most effective reasons for failure the power line. Lightening, switching or other disruptive parameters can cause line outage or distribution substation failure. There are different devices used to improve the safety, reliability, and power quality of the system. Surge arresters are one of t...

2003
Sasa Jakovljevic Mladen Kezunovic

-Substation data integration is facilitated by existence and appropriate connection of Intelligent Electronic Devices (IEDs). Collecting data from IEDs and its processing facilitates performing data consistency checks, filtering out erroneous measurements, monitoring of switching sequences and substation topology transitions etc. Processed data may be used locally and/or communicated to remote ...

Journal: :iJOE 2015
Wenxing Wang

After briefly analyzing the structure of a photovoltaic power substation monitoring system, a positioning system roadway based on blue tooth was put forward to connect with already existing communication and monitoring networks. A separate monitoring system for the environment is integrated with the former comprehensive automation system to create a unique system. It is a new step of substation...

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