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Electrical Engineering

20809 threads, 167155 comments (54 Viewing)
 

Shunt Release Trip Problem

07/23/2014 by shikul
HI EVERYBODY, I have installed L&T DN0-SH Shunt Release in DU100H MCCB with SM500 series monitoring device MG73BH , my problem is whenever electr...
Views: 56, Comments: 4
Last comment 07/24/2014 by Crabtree
 

System Volatege

07/23/2014 by ind
In USA and Canada, the system voltage is 480V AC for3 phase system and 240V AC for single phase system, How is it possible, since the line to neutral...
Views: 109, Comments: 14
Last comment 07/23/2014 by IdeaSmith
 

About Synchronous Machine Design

07/23/2014 by amith
Hello friends, I have a doubt regarding Synchronous Machine design. As we know, Output Q = Co*D*D*L*Ns where Ns = Speed in RPS or D*D*L = Q/ (Co*N...
Views: 67, Comments: 6
Last comment 07/24/2014 by amith
 

CBCT

07/23/2014 by vyral2311
earth fault limiting value is 100 Amps and o/g feeders are provided with 50/1 CBCT (specs: POC < 10.9 and relay setting range is 10mA). Now there i...
Pathfinder Tags: CBCT
Views: 64, Comments: 6
Last comment 07/24/2014 by vyral2311
 

Transformer

07/23/2014 by Prajith o c
A single -phase transformer is rated at 100 KVA, 5000/250V. The full load copper losses are 1KW. The load KVA for maximum efficiency is?
Views: 87, Comments: 2
Last comment 07/23/2014 by redfred
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Section Blogs

Power Generation and Distribution Blog

139 blog entries, 2776 comments (0 Viewing)

Power Shift from Utilities to Customers

07/18/2014 by IHS GlobalSpec eNewsletter
Fort Collins, CO, is trying to turn its downtown into a net-zero energy district, making it the latest example of a new trend: the shift in power...
Views: 120, Comments: 0

Solar Roadways Drive Forward

07/05/2014 by IHS GlobalSpec eNewsletter
The idea of "solar roadways" has been around for a while, but one engineer has driven the concept through two rounds of government funding and ear...
Views: 281, Comments: 9
Last comment 07/14/2014 by James Stewart

Smart Grids Beget Smart Buildings

05/11/2014 by IHS GlobalSpec eNewsletter
According to a recent report entitled Global Smart Buildings Forecast 2013-2018, we're about to see an explosion in the smart building sect...
Views: 315, Comments: 0
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Shock, Vibration and Noise Blog

74 blog entries, 936 comments (0 Viewing)

Machines Tell It Like It Is

07/16/2014 by IHS GlobalSpec eNewsletter
Machines that talk? Well, not literally. But, a research team in Italy is experimenting with vibration sensors on mechanical equipment. As shown in th...
Views: 111, Comments: 0

Introducing a New Dimension to Vibration Analysis

05/09/2014 by IHS GlobalSpec eNewsletter
Performance tests at a power plant in Lithuania show promising results for a four-dimensional approach to vibration analysis. In contrast to the...
Views: 168, Comments: 0

New Method Bridges Gaps

02/21/2014 by IHS GlobalSpec eNewsletter
German researchers have developed a new method for detecting structural problems in bridges. The ResoBridge method (registration required) measures t...
Views: 275, Comments: 0
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Electrical Components

123 blog entries, 1648 comments (0 Viewing)

Wireless Charging Cuts Power Cords

07/10/2014 by IHS GlobalSpec eNewsletter
To further drive the adoption of wireless charging in the consumer market, Intel has inked a technology licensing agreement with wireless charging c...
Views: 184, Comments: 12
Last comment 07/14/2014 by redfred

Pumped Hydro Dominates Energy Storage

07/09/2014 by IHS GlobalSpec eNewsletter
A variety of technologies are classified as grid-scale energy storage, with some established and others in their infancy. PowerMag.com offers a prime...
Views: 97, Comments: 1
Last comment 07/11/2014 by bullardrr

Wireless Chipset Promises Six Times Faster Wi-Fi

05/25/2014 by IHS GlobalSpec eNewsletter
For giving new-generation access points better performance, range, and stability, Quantenna Communications is readying a 10G Wi-Fi chipset using...
Views: 273, Comments: 0
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Lab Equipment Blog

112 blog entries, 598 comments (0 Viewing)

Spectroscopy Targets Food Crime

06/14/2014 by IHS GlobalSpec eNewsletter
Smarting from the UK's horsemeat-sold-as-beef scandal that rocked consumer trust, the food industry is turning to spectroscopy as a major defense agai...
Views: 202, Comments: 4
Last comment 06/14/2014 by SolarEagle

Why Labs are Embracing Social Media

02/16/2014 by IHS GlobalSpec eNewsletter
Lab staff have been among the most skeptical professionals in seeing the value of social media outlets, but the genie is finally out of the bottle, c...
Views: 301, Comments: 0

The Logistical Difficulties Of Moving A Science Lab

12/07/2013 by CR4 Guest Author
The process of moving a lab can seem overwhelming, especially when considering a long distance or international move. In fact, this process can be so...
Views: 259, Comments: 0
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Wire and Cable Technology Blog

71 blog entries, 873 comments (0 Viewing)

New Technology Recycles Copper from Car Cables

06/09/2014 by IHS GlobalSpec eNewsletter
With only 40 years' worth of mineable copper remaining world-wide, auto makers - especially those that build popular hybrids that consume large am...
Views: 244, Comments: 3
Last comment 06/10/2014 by Brave Sir Robin

Auto Industry Steers to Ultrasonic Splicing

03/09/2014 by IHS GlobalSpec eNewsletter
While many engineers remain reluctant to switch from older resistance welding or soldering methods, the auto industry is recognizing the advantages of...
Views: 375, Comments: 3
Last comment 03/12/2014 by SimpleMind

Quick And Dirty Guide To Clean Cord Management

09/01/2013 by CR4 Guest Author
Perhaps you've heard the old saying "Give a man enough rope, and he'll hang himself." Well, that saying can be applied today in regard to the cornucop...
Views: 481, Comments: 1
Last comment 09/03/2013 by phoenix911
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Other Blog Entries of Interest

DIY Laser Light Show Projector

06/28/2012 posted in Workbench Creations
by frankd20
Laser light shows can be pretty impressive. I was curious about how these shows are done, so I thought I would try to create one of my own. Below are...
Pathfinder Tags: Laser laser dac laser light show laser projector laser scanners ...
Views: 1453, Comments: 12
Last comment 07/26/2012 by frankd20

5 Reasons to Not Root Your Android Device

06/27/2012 posted in TeknologikL
by yamdankee
Previously, we discussed some reasons why you should root your Android device. There are, of course, drawbacks. So here are 5 reasons you may not want...
Pathfinder Tags: Android custom roms iphone rooting why not to root
Views: 1196, Comments: 1
Last comment 06/30/2012 by Kris

What is Your Favorite Loudspeaker Design?

06/25/2012 posted in Acoustics & Audio Technology
by rawlifelivin
Think of a loudspeaker in your head. Got it? Now what did that image look like? Just about everybody will have imagined a wooden box with conical dr...
Pathfinder Tags: audio dynamic electrostatic Hybrid martinlogan ...
Views: 2317, Comments: 24
Last comment 12/26/2013 by ronseto

Economic Audio: HDMI Cables

06/19/2012 posted in Acoustics & Audio Technology
by rawlifelivin
Of all the overpriced electronic components available to consumers, the most targeted by audio enthusiasts the world over are cables. Whether the disc...
Pathfinder Tags: amazon audio audiophile audioquest cable ...
Views: 659, Comments: 18
Last comment 06/21/2013 by cuba_pete

Economic Audio: Bose 301 V vs. Wharfedale Diamond 10.1

06/08/2012 posted in Acoustics & Audio Technology
by rawlifelivin
In the world of high fidelity audio, there are a lot of components that are unnecessarily overpriced. Big name electronics companies don't always gi...
Pathfinder Tags: audio audiophile Bose Hifi Speaker ...
Views: 1303, Comments: 53
Last comment 06/28/2012 by Holzfeller

Convenience Fee to Pay for Technology via the Same Technology

01/09/2012 posted in Acoustics & Audio Technology
Verizon — the largest wireless and Internet provider in the U.S. — has come up with a new $2 fee, scheduled to go into effect on January 1...
Views: 1880, Comments: 8
Last comment 10/13/2012 by ferd