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Monthly Archive for: «September, 2011»

Virus-Powered Battery

Engineers at MIT (Massachusetts Institute of Technology) have figured out a way to deal with virus that is better than just killing them: they’re putting them to work. The researchers… Read more

Sep 16, 2011 | Bipul Raman

An array of microbattery electrodes

Ready for wind power? It’s time.

Galloping climate change and dwindling supplies of fossil fuels are driving ever-greater interest in renewable energy. As a result, wind energy is booming worldwide. Not since the heyday of the… Read more

Sep 15, 2011 | Edvard

Ready for wind power? It's time.

State Machine Design

Written by Ray Salemi State machines are a foundation of digital design. Eventually we all reach the point where we need to control our digital algorithm, and we almost always… Read more

Sep 14, 2011 | elaina

Simple traffic light state machine

GIS vs AIS – Substation Earthing

Compressed SF6 gas used in MV and HV switchgears as an insulating medium has led to the development of compact gas-insulated substation (CIS) technology (figure 1). GIS , having many… Read more

Sep 12, 2011 | Edvard

GIS vs AIS - Substation Earthing

Illuminance recommendations

Recommended minimum illuminances (E) for typical interior lighting tasks. The illuminances are aimed at a lighting level appropriate to the specific visual tasks to be performed in the space or… Read more

Sep 10, 2011 | Edvard

Office lighting design

What Is a Load Break Switch?

A load break switch is a disconnect switch that has been designed to provide making or breaking of specified currents. This is accomplished by addition of equipment that increases the… Read more

Sep 08, 2011 | Edvard

SF6 Insulated Load Break Switch for the use in medium voltage switchboards for secondary distribution networks.

AIS – Air insulated substations

In large, modern AC power systems, the transmission and distribution systems function to deliver bulk power from generating sources to users at the load centers. Transmission systems generally include generation… Read more

Sep 06, 2011 | Edvard

Air Insulated Packaged Substations and Components

Animal deterrents and security in substation

The vast majority of electrical utility substations designed to transform transmission voltages to distribution class voltages employ an open-air design. The configurations may vary, but usually consist of equipment that… Read more

Sep 05, 2011 | Edvard

Six-foot black snake the culprit in power outage


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