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Пособие LPQI AG | Leonardo ENERGY Россия - 0 views

    Пособие LPQI AG\n\nОкт 6th, 2008 by Издатель\n\nПрикладное руководство по Качеству электроэнергии\nPower Quality Application Guide11.\n\n \nDiigo Теги: leonardo energy, renewable, power quality\n\nThis page has the following sub pages.\n\n * Зарубежные источники информации: LPQI AG на английском языке\n * Раздел 1 Введение\n * Раздел 2 Затраты\n * Раздел 3 Гармоники\n * Раздел 4 Устойчивость\n * Раздел 6 Заземление и ЭМС\n * Раздел 8 Децентрализованная генерация и возобнавляемые источники энергии
cuprummoscow NCC

Leonardo ENERGY Россия » Blog Archive » В России может появиться энергетическ... - 0 views

  • В проекте Полиция - энергетическая? Закона о внесении изменений в Федеральный Закон "Об энергосбережении" появилось понятие "энергетическая полиция".

    Предполагается, что этот или подобный (в зависимости от окончательных формулировок утверждённого Закона) орган будет обеспечивать принуждение к исполнению. положений Закона.

    Russian Energy Saving Law amendements draft assumes a new enforcement body -- "energy police" - willbe set up to secure implementation of energy saving measures.
Hans De Keulenaer

News Fires leave 40,000 people without power in Madrid - News from Spain - Expatica - 0 views

  • Fires that broke out at an electricity substation and a transformer left 40,000 people without electricity in Madrid on Thursday.
Hans De Keulenaer

Conflict in Quality Regulation of Distribution Utilities « HEAD, WIND, CANOE - 0 views

  • The conflicting objective in these regulatory documents is clear. One document, the PDC, specifies that the DUs must comply with PQ limitations per section 3.2 in all connection points.  On the other hand, the Guideline points that only 95% of those connection points must be ensured by the DU to have PQ level in accordance with the PDC section 3.2.
Hans De Keulenaer

Portable Power Quality Analyzer Supplier - 0 views

  • Power Quality Analyzer : Panel mounted M2000
    - Power Quality Analyzer : Portable & Panel Mounted Power Quality Analyzer M4000, Black Box Solution
    - Power Quality Studies : Power Quality studies for Operational / Network Problems, Load Flow analysis, P.F and Harmonic studies, transient and Voltage dip studies.
    - Energy Audit Services
    - Energy Management System with advanced energy and power analyzers
Hans De Keulenaer

Electricity dictates datacentre locations - 17 Jul 2008 - Computing - 0 views

Hans De Keulenaer

Spanningskwaliteit in NL 2007 - 0 views

    PDF report on the results of PQ monitoring in the Netherlands in 2007 covering LV to HV.
Hans De Keulenaer

The Green Grid: Improving Power Efficiency In Data Centers - 1 views

  • The Green Grid is a consortium of information technology companies and professionals seeking to lower the overall consumption of power in data centers around the globe. The organization is chartered to develop meaningful, platform-neutral standards, measurement methods, processes and new technologies to improve energy efficient performance of global data centers.
Hans De Keulenaer

Voltage dips at an automobile manufacturer | Leonardo ENERGY - 0 views

    Various departments at a car manufacturing plant are suffering from regular process outages due to voltage dips. These dips are causing production losses in the Metal Operation, Spray Coating, and Assembly departments that directly affect the productivity of the plant. The cost of those losses is directly related to the profile of the voltage dip (duration and depth).

    Various options to reduce these costs are investigated, with particular emphasis upon the Spray Coating and Assembly departments. The following conclusions can be drawn:


    The number and type of dips occurring at the point of connection of the plant is regular. It is similar to what is monitored at other medium voltage stations that have the same grid structure.

    A detailed analysis of the spray coating process reveals that installing a 'restart on the fly' system on the large conditioning fans substantially reduces the related voltage dip losses.

    A detailed analysis of the Assembly department shows that there are two main bottlenecks that determine the restart time after a dip (the 'Drive' sub-process and the 'Cockpit', 'Marking', and 'Transport chain' users). These bottlenecks can be removed by installing a Dynamic Voltage Restorer (DVR), which results in a payback time of 1.4 years.

    * 1 Introduction
Hans De Keulenaer

Drunken Indian elephants take on electricity pole | The Register - 0 views

  • According to state wildlife official Sunil Kumar, the drunken pachyderm electrocution incident took place last Friday in Chandan Nukat, a village some 240km west of Meghalaya state's capital Shillong. Kumar said: "There would have been more casualties had the villagers not chased them away."
Hans De Keulenaer

ScienceDirect - Solar Energy : A high power quality anti-islanding method using effecti... - 0 views

  • Islanding phenomenon is undesirable because it leads to a safety hazard to utility service personnel and may cause damage to power generation and power supply facilities as a result of unsynchronized re-closure. In order to prevent the phenomenon, various anti-islanding methods have been studied. Until now, frequency or start phase shift methods of inverter current have much attention as active anti-islanding methods, which cause reactive power variation to the utility. However, these methods deteriorate usually the power quality like power factor or harmonic performance. This paper proposes a high power quality active anti-islanding method using effective power variation, which is implemented by periodically increasing/decreasing variation of inverter current magnitude. If it causes the large variation of inverter output voltage after islanding, active frequency drift (AFD) method as a simple anti-islanding method will be injected into the inverter current for a designed period and islanding can be detected. In case of large voltage variation when the grid is connected, AFD method will be removed after the designed period. Unlike most active anti-islanding method deteriorating power quality, the proposed method will have high performance of islanding detection and good power quality. For the verification of the proposed method, simulated results and experimental results in addition to analysis are presented using a 3 kW PV inverter.
Hans De Keulenaer

Prayas Energy Group - 0 views

  • The Electricity Supply Monitoring Initiative (ESMI) as an effort by Prayas (Energy Group) to empower ordinary consumers to monitor electricity supply quality, i.e. supply interruptions and voltage profile, at the consumer end. Under this initiative specially developed data loggers, which are installed at different locations in an area, record voltage as well as supply interruptions. This is a tool for consumers and regulators to get an idea of the ground reality and to increase the accountability of electricity utilities.
Hans De Keulenaer

Power Quality DVD focuses on best practice news on the Electrical news magazine - 0 views

  • Fluke is offering a free educational Power Quality DVD which can be requested via the Fluke web site. It focuses on the best use of power quality tools to prevent equipment failure and downtime in industrial applications.
Hans De Keulenaer

Flywheel Ensures Airport's Continuous Power Quality - 0 views

  • In this configuration, the Pentadyne system is the first line of defense against all power issues, isolating the batteries from any such events.
Hans De Keulenaer

Power Quality Monitoring and Power Metering Tutorial- Developer Zone - National Instrum... - 0 views

  • This tutorial provides an overview of three phase electricity basics and then discusses three of the most common power quality events: leading/lagging power, saq/swell/interruptions, and harmonics.
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