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01/19/2015 8:30 AM

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Electrical Engineering

21337 threads, 174257 comments (27 Viewing)
 

Transformer Maximum Load & Breaker Setting

01/26/2015 by hino
Hi.. I have a 1600kVA (6/0.4kV) Transformer, this transformer already loaded with 2 bridge crane (cap 220/55/5Ton) in 1 feeder and another load (motor...
Pathfinder Tags: breaker bride crane setting transformer
Views: 168, Comments: 7
Last comment 01/27/2015 by raghun
 

TTR Test on Voltage Regulator

01/25/2015 by KWASI BIMPONG
Hello fellow Engineers, please what will be the cause or problem on a voltage regulator transformer.When conducting a TTR test, and the result coming...
Views: 105, Comments: 3
Last comment 01/25/2015 by KWASI BIMPONG
 

Instrumentation Question

01/25/2015 by sharameli
I am struggling for HOURS with this question. can some one pls help me with this asap?as a tip, the answer to part b is 160 dB and that is actually wh...
Views: 183, Comments: 16
Last comment 01/27/2015 by sharameli
 

Generator Sizing!

01/25/2015 by magnetic_flux
Dears, We have to select a generator for our site office. The load is around 250 KVA. System is : 3Ph/ 380V/ 60 Hz. Load mainly consists of A/C uni...
Views: 188, Comments: 15
Last comment 01/27/2015 by magnetic_flux
 

Fault Analysis

01/24/2015 by UNIQUE48
IF WE TAKE A TRANSFORMER LOADED BY A TRANSMISSION LINE WITH SURGE IMPEDANCE LOADING IF IN CASE A FAULT OCCURS SAY DOUBLE LINE TO GROUND can there be...
Pathfinder Tags: fault analysis
Views: 147, Comments: 7
Last comment 01/26/2015 by NotUrOrdinaryJoe
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Section Blogs

Electrical Components

129 blog entries, 1668 comments (0 Viewing)

Small Modular Reactors Progressing, but Not in U.S.

01/07/2015 by IHS GlobalSpec eNewsletter
Small modular reactors (SMRs) by definition generate 300 MW or less, and are factory built and tested for field installation. Their modular nature red...
Views: 213, Comments: 9
Last comment 01/13/2015 by Unredundant

Small Hamlet is Germany's Alternative Energy Pioneer

12/14/2014 by IHS GlobalSpec eNewsletter
The German hamlet of Feldheim is the country's first to become independent of the grid. By switching completely to alternative energy sources, it m...
Views: 228, Comments: 1
Last comment 01/11/2015 by fledbetter

Brazil: A Smart Grid Trendsetter

11/29/2014 by IHS GlobalSpec eNewsletter
Brazil's booming economy has pumped up its electricity demand, but poor roads and heavy traffic make it challenging for utilities to support the i...
Views: 172, Comments: 0
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Lab Equipment Blog

116 blog entries, 599 comments (0 Viewing)

Labs Take Aim at Contamination

12/29/2014 by IHS GlobalSpec eNewsletter
Always wary of contamination, labs are becoming ever more watchful amid global concerns over Ebola and a much reported anthrax scare at a CDC fa...
Views: 58, Comments: 0

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: 220, 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: 347, Comments: 0
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Power Generation and Distribution Blog

141 blog entries, 2756 comments (0 Viewing)

Running Out of Power?

12/21/2014 by IHS GlobalSpec eNewsletter
Power Magazine shares a rather stunning revelation: the world will need to build enough power plants to replace 40% of the existing fleet in the n...
Views: 206, Comments: 0

Top 10 Power Hoaxes

11/03/2014 by IHS GlobalSpec eNewsletter
Urban legends, hoaxes, and rumors go hand in hand with the Internet, thanks to a mix of pranksters, gullible people, and easily-shared links. We'v...
Views: 596, Comments: 3
Last comment 11/04/2014 by texasron

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: 227, Comments: 5
Last comment 10/27/2014 by Phys
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Shock, Vibration and Noise Blog

76 blog entries, 936 comments (0 Viewing)

Vibration Monitors Keep Mining Machines Humming

11/11/2014 by IHS GlobalSpec eNewsletter
In an effort to attain zero downtime, there is increasing demand for vibration monitoring systems. The mining industry, for example, is particular...
Views: 168, Comments: 0

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: 232, 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: 520, Comments: 0
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Wire and Cable Technology Blog

73 blog entries, 880 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: 221, Comments: 1
Last comment 10/31/2014 by Lonewolf

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: 656, 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: 539, Comments: 4
Last comment 08/05/2014 by pnaban
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Other Blog Entries of Interest

Computer controlled holiday lights

12/25/2014 posted in Workbench Creations
by frankd20
Holiday lights have come a long way since I was a kid and I decided to take the dive into the hobby. This isn't quite my first time working on this...
Pathfinder Tags: festivus hanukkah holiday lights light show renard pixel strips ...
Views: 288, Comments: 0

Fixing a Thermoelectric Wine Fridge

11/14/2014 posted in Workbench Creations
by frankd20
I recently got a small wine fridge that holds about 10 bottles, previously recycled by someone else due to it not working. Many wine fridges today...
Pathfinder Tags: Thermoelectric cooler wine fridge
Views: 340, Comments: 8
Last comment 12/01/2014 by frankd20

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: 692, Comments: 35
Last comment 11/06/2014 by suresh sharma

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: 1671, Comments: 15
Last comment 10/31/2014 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: 1245, 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: 2593, Comments: 24
Last comment 12/26/2013 by ronseto

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