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Electrical Engineering

21108 threads, 170874 comments (37 Viewing)

Running of a 500V Compressor Motor On 400V

10/30/2014 by Signode
Dear Friends; We have a screw air compressor Atlas Copco GA808 which has a 75KW 500V motor runs on star delta. As we have 400V power supply system,...
Views: 38, Comments: 3
Last comment 10/30/2014 by bigg

VSD Allen Bradley 753

10/30/2014 by eltech
I was just curious why the set speed does not match the feedback speed , an error about 3%. The Drive was initially set on sensorless vector, tuned a...
Views: 28, Comments: 2
Last comment 10/30/2014 by Yahlasit

Min Clearance From Transformer To Building

10/29/2014 by sahababu71
Whats the minimum clearance required from transformer oil containment to building window or door without fire wall. Its 240 kv 400 MVA transformer wit...
Views: 48, Comments: 3
Last comment 10/30/2014 by North of 60

Polar 115

10/29/2014 by ragab balasha
i have a polar 115 machine and the screan reading change aboat the real?
Views: 51, Comments: 2
Last comment 10/30/2014 by TonyS

Speed Governing for Cummins EFC Governor

10/29/2014 by dawitb
hi we have tried to synchronize a cummins generator with cummins efc speed governor (part number 49140900) to an old generator using datakom 707 auto...
Views: 58, Comments: 2
Last comment 10/29/2014 by dawitb
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Section Blogs

Shock, Vibration and Noise Blog

75 blog entries, 936 comments (0 Viewing)

Dynamic Sensor Connects to Smartphones

10/14/2014 by IHS GlobalSpec eNewsletter
Digiducer, an ICP Digital Dynamic Accelerometer, is being touted as the first integrated, rugged, high-resolution, broad frequency piezoelectric v...
Views: 115, Comments: 0

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: 453, 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: 355, Comments: 0
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Power Generation and Distribution Blog

140 blog entries, 2781 comments (0 Viewing)

Why is U.S. Midwest Short on Coal?

10/13/2014 by IHS GlobalSpec eNewsletter
While coal plants continue to have a stronghold in the U.S. Midwest, supplies for those plants may not be forthcoming. Thanks to unreliable rail s...
Views: 106, Comments: 5
Last comment 10/27/2014 by Phys

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: 507, 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: 538, Comments: 9
Last comment 07/14/2014 by James Stewart
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Electrical Components

126 blog entries, 1657 comments (0 Viewing)

Utility Flywheel Generates 20 MW

10/12/2014 by IHS GlobalSpec eNewsletter
One type of utility-scale flywheel is a carbon fiber disk 3 ft in diameter, 6 ft tall, and weighing more than a ton. Spinning in a vacuum at 16,00...
Views: 287, Comments: 4
Last comment 10/25/2014 by badbob

Home Wireless Networking Gets a New Protocol

08/27/2014 by IHS GlobalSpec eNewsletter
Recognizing the need for a new and better way to connect products in the home, seven companies have joined forces to form the Thread Group and dev...
Views: 381, Comments: 5
Last comment 08/28/2014 by Tornado

Flexible Solutions Pump Up Grid Capacity

08/23/2014 by IHS GlobalSpec eNewsletter
Upgrading the grid to handle additional demand has traditionally been undertaken by adding expensive wire in the air or ground. Solutions that imp...
Views: 226, Comments: 0
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Lab Equipment Blog

115 blog entries, 599 comments (1 Viewing)

Scientists Rate the Top Lab Products

10/08/2014 by IHS GlobalSpec eNewsletter
San Diego-based Illumina's MiSeqDx instrument, the first FDA-cleared in vitro diagnostic (IVD) next-generation sequencing system, has captured top hon...
Views: 116, Comments: 0

Environmental Arsenal Gets Stronger

08/29/2014 by IHS GlobalSpec eNewsletter
From powerful mass spectrometers to mobile devices, tools available for environmental monitoring are becoming ever more efficient, notes this cover...
Views: 279, Comments: 0

Smartphones Invade the Lab

07/28/2014 by IHS GlobalSpec eNewsletter
Did you ever think that one of your most valuable lab instruments might just be your smartphone? Lab Manager magazine thinks so, as seen in a cover st...
Views: 436, Comments: 0
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Wire and Cable Technology Blog

72 blog entries, 879 comments (0 Viewing)

Google to Fund U.S.-to-Japan Fiber Optic Undersea Cable

10/30/2014 by IHS GlobalSpec eNewsletter
Google and five Asian telecom companies are funding an underwater fiber optic cable system that will connect the U.S. West Coast and Japan. With a...
Views: 11, Comments: 0

Unique Copper Wire That Can Store Electricity

08/05/2014 by IHS GlobalSpec eNewsletter
Eliminating space-consuming batteries and storing their energy elsewhere could lead to smaller electronics and lighter and less-costly electric ve...
Views: 569, Comments: 5
Last comment 08/09/2014 by europium mkII

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: 473, Comments: 4
Last comment 08/05/2014 by pnaban
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Other Blog Entries of Interest

Bad Capacitors Make Me Smile

10/17/2014 posted in Workbench Creations
by frankd20
I know bad components aren't something a person should usually be happy about, but in my case, they have been a source of joy on a number of occasio...
Pathfinder Tags: 47PFL3603D 47PFL3603D bad 47PFL3603D power supply 47PFL3603D/27 bad capacitors ...
Views: 526, Comments: 33
Last comment 10/25/2014 by GW

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: 1569, Comments: 13
Last comment 10/29/2014 by phoenix911

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: 1218, 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: 2515, 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: 838, 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: 1563, Comments: 53
Last comment 06/28/2012 by Holzfeller