lunes, 11 de noviembre de 2013

The Need for Load Shedding In Generating, Transmission and Distribution Systems

Demands, Demands… The need for load shedding generally arises from unforeseen causes, lack of sufficient power supply from deficiencies in generating, transmission and distribution capabilities. These conditions may stem from unusually higher than foreseen demands that may be due to the following: Unusual seasonal changes, Special events that may cause loss of diversity, and Failure ...



via EEP - Electrical Engineering Portal http://electrical-engineering-portal.com/load-shedding-in-generating-tnd-systems

domingo, 10 de noviembre de 2013

What’s the worst source of fluctuations on a power supply system?

Electric arc furnaces Electric arc furnaces are considered as being one of the worst source of fluctuations on a power supply system. The load cycles of arc furnaces vary widely, depending on size and metallurgical requirements. The first part of the cycle consists of melt-down period when the solid charge is melted and the main ...



via EEP - Electrical Engineering Portal http://electrical-engineering-portal.com/worst-source-of-fluctuations-on-a-power-supply-system

Electrical Installation Guide – New version – FREE Download Now

Designer, Consultant, Contractor, Panel buider, Facility manager, Student, teacher, Standardisation or certification person,… you all are forced to respect IEC standards daily for the security of your installations. Yet, the writings about the current regulations are complex and constantly evolving. You often encounter difficulties to put these standards into practice; you lose a lot of [...]



via Electrical engineering Community http://engineering.electrical-equipment.org/uncategorized/electrical-installation-guide-new-version-free-download-now.html

jueves, 7 de noviembre de 2013

How our brains work when we are creative: The science of great ideas

Ah, ideas. Who doesn’t want more great ideas? I know I do. I usually think about ideas as being magical and hard to produce. I expect them to just show up without me cultivating them, and I often get frustrated when they don’t show up when I need them. The good news is that it [...]


The post How our brains work when we are creative: The science of great ideas appeared first on The Buffer blog: productivity, life hacks, writing, user experience, customer happiness and business..






via The Buffer blog: productivity, life hacks, writing, user experience, customer happiness and business. http://blog.bufferapp.com/how-to-produce-more-great-ideas-according-to-science?utm_source=rss&utm_medium=rss&utm_campaign=how-to-produce-more-great-ideas-according-to-science

domingo, 3 de noviembre de 2013

4 Motor Designs Identified In NEMA MG1

It’s all about performance… Performance requirements for various types of induction motors for use on standard sinewave power supplies are identified in NEMA MG1. Some of these types of motors are suitable for use in variable speed applications, dependent on the type of application. The purpose of this section is to provide guidance on the ...



via EEP - Electrical Engineering Portal http://electrical-engineering-portal.com/4-motor-designs-identified-in-nema-mg1

Transformer Protection

Introduction Many kinds of transformers can be found in the market which includes two winding power transformers, three windings power transformers, auto transformers, regulating transformers, earthing transformers. Depending on the use of the transformer, winding connections, earthing methods, mode of operation and other various factors, decision on the kind of protection that should be used [...]



via Electrical engineering Community http://engineering.electrical-equipment.org/electrical-distribution/transformer-protection.html

Averting the Utility Death Spiral: GE’s Idea

utility spiral 2Some warn of an impending utility death spiral, where utility profits increasingly decline, service falters and consumers suffer. The cause? Consumers and businesses are buying less electricity because of energy efficiency. GE offers a solution in its new white paper.



via Energy Efficiency Markets http://www.energyefficiencymarkets.com/2013/10/25/averting-utility-death-spiral-ges-idea/