tutorial | Leonardo ENERGY

8.6 Energy savings with special T8 lamps

By:

Stefan Fassbinder

/ Published on:

Fri, 05/10/2013 - 22:43

It has been right three times already during recent years that the company Philips attracted attention releasing two new T8 lamps and one additional gadget. The first one was simply a compatible retrofit solution with a lower power rating for luminaires equipped with both magnetic or electronic ballasts – but which prove to be not quite as simple as that.

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Checklist - Design Guide for Integrated Home Systems

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Wed, 08/29/2012 - 16:36

Most people these days are familiar with the term ‘Integrated Home Systems’ (hereafter abbreviated to IHS). However, when people begin to talk about IHS it quickly become apparent that nearly everyone interprets this term differently. For one person it is a lighting control system, for another a sound distribution system, and for yet another it is a system which ensures that older people are able to go on living independently at home for longer.

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9.4 Web presentation recording

By:

Stefan Fassbinder

/ Published on:

Mon, 11/21/2011 - 16:24

Please click here to watch the recording!

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Basic integrated home system functions for the elderly

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Fri, 04/01/2011 - 10:27

Minimal functions that enable the elderly to live independently for longer.

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Optimisation of PV installations for partial shadowing

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Wed, 01/26/2011 - 10:13

Normaly PV panels are connected in a string to a central inverter. When there is shadowing on one panel (e.g. from a chimney or tree) the production of the entire string falls. We present two ways to solve the problem.

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Pulse switches for houses and apartments

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Mon, 01/17/2011 - 09:57

To increase the flexibility of the electrical installation in the house, we can use pulse switches. Moreover, there are many other benefits and additional capabilities.

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Recording Session 1 - Mini-course: How to do ecodesign?

By

Sergio Ferreira

Tue, 05/04/2010 - 11:48

Here is the recording of Session 1 from the mini-course: How to do ecodesign.

It dealt with the basics of performing LCA studies, focusing on the following items:

What are the most important aspects of eco-design in the context of buildings in use?
From theory to practicality: translating aspects into technical parameters.
Ecodesign analyses of all important aspects of manufacture and use of buildings in one shell.

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Transformers in power distribution networks

By

Stefan Fassbinder

Mon, 08/31/2009 - 08:33

In electrical engineering terminology, transformers are regarded as electrical machines, although they only convert one form of electricity into another form of electricity. Due to this relatively simple function, among other reasons, their losses are lower than those of any equipment converting electricity into some other form of energy. They are probably the most efficient machines ever devised by man.

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Energy Efficiency in Lighting Webcast

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Tue, 12/02/2008 - 13:43

This new webcast, prepared by Laborelec for Leonardo ENERGY, discusses the basic principles of artificial lighting, light sources and armatures in relation to energy efficiency in lighting systems.

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Energy Project Analysis with RETScreen

By

Hans De Keulenaer

Tue, 12/02/2008 - 10:20

RETScreen International is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. Over the coming months, Leonardo ENERGY will be publishing a series of webcasts on energy project analysis using RETScreen.

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Wind Energy Webcast

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Fri, 07/25/2008 - 20:26

This webcast offers a short introduction to wind energy and wind technology development.

It begins with a brief overview of the physical principals of wind energy, discussing the main components of a modern wind turbine and the likely developments over the next five years. Investment and operational costs are also addressed, and it concludes with a case study of the development of a 10 MW onshore wind farm.

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Lighting Tutorial

By:

Stefan Fassbinder

/ Published on:

Mon, 07/21/2008 - 17:14

Modern dimmable electronic ballasts provide excellent versatility for lighting scenes in conference rooms, theatres and the like where magnetic ballasts cannot compete, although a new technique to make magnetic ballasts dimmable is presently under development in Canada but not yet available on the market (for news on this see here

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Busbar Design Webcast

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Thu, 04/03/2008 - 18:34

This webcast is the first in an ongoing series on busbars by David Chapman of Leonardo ENERGY. It discusses the design of busbar systems, including the choice of material, how to size busbars for a particular current rating and how to optimise the lifetime costs.

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Power Quality Concept

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Tue, 04/01/2008 - 12:03

Electrical power is the most essential raw material used by industry today. It is an unusual commodity because, since it always transformed, it is required to be a continuous flow, cannot be conveniently stored in quantity, and cannot be subject to quality assurance checks before it is used.

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Automatic Voltage Restorer operation principle

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Mon, 03/10/2008 - 16:42

During normal operation supply voltage is provided by the network to the load at rated value.

In the event of a voltage dip, it is possible to maintain rated voltage by installing a dynamic voltage restore.

This animation shows the principle of automatic voltage dip mitigation equipment's operation.

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Voltage harmonics generated by non linear loads

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Thu, 02/28/2008 - 17:44

With linear loads and sinusoidal voltage supply, all waveforms are sinusoidal.

With non linear loads, which drain non sinusoidal current, system impedance influences voltage waveform (with current value remaining the same):

Low short circuit impedance: sinusoidal voltage
High short circuit impedance: non sinusoidal voltage

The animation describes the influence of short circuit impedance on voltage disturbances generated by harmonics currents.

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Photovoltaic Systems

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Fri, 02/22/2008 - 10:18

This webcast, prepared by Fernando Nuño of Leonardo ENERGY, offers an introductory overview of photovoltaic technology, different systems and market figures.

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Harmonic Regulation and Compatibility

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Wed, 02/20/2008 - 12:45

This webcast, prepared by David Chapman of Leonardo ENERGY, explains the need for Harmonic Regulation, such as the UK Recommendation G5/4, and the concept of compatibility on which it is based.

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Typical constructions of earth electrodes

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Fri, 02/15/2008 - 14:00

Engineers normally face two tasks when designing earthing systems:

Obtaining a low earth resistance (impedance) value
Having a good surface potential distribution (low touch and step voltages)

The properties of the earth electrode arrangement depend significantly upon the earth electrode construction.

This animation shows the most common criteria for choosing schemes for electricity distribution from a technical perspective.

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Criteria for choosing distribution schemes

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Mon, 01/28/2008 - 18:58

There are several available choices when designing a plant scheme, each one with different properties.

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