CR4 - The Engineer's Place for News and Discussion®

Electrical Engineering
09/29/2014 10:47 AM

See all Forum Threads

Section Forums

Electrical Engineering

21019 threads, 170010 comments (35 Viewing)

Panel Board

09/30/2014 by smi_1989
Dear All, For our temporary facilities, we have the following load: 3 circuits for lighting ( Each circuit has 11 x 0.5 KVA=5.5 KVA lighting load)...
Views: 1, Comments: 0

Help with VDF Pump Control

09/29/2014 by Claudio D
Hi All I am trying to keep a constant water level n a constant flow (in and out) situation using a 2ph pump and a VAT200 GE Consumer industrial VFD...
Pathfinder Tags: VFD Pump constant level
Views: 24, Comments: 3
Last comment 09/30/2014 by Wrench twirler

DG Set

09/29/2014 by Anupam Diwan
is Diesel generator(DG set) required DC supply.why DG set required DC power supply
Pathfinder Tags: DG
Views: 24, Comments: 2
Last comment 09/29/2014 by RAMConsult

Star Delta Cable

09/29/2014 by Anonymous Poster
I have one question. star-delta starter motor have 2 run cable.if motor full load current is 40A so it will divide in two part i.e 20A in main contac...
Views: 38, Comments: 3
Last comment 09/29/2014 by JRaef

NEC Split Air Conditioner

09/29/2014 by Normbourne
hi guys, Are schematic diagrams of the RSC2411 air conditioner, with particular regard to the PCB's, available...? I have the user's manual b...
Views: 74, Comments: 4
Last comment 09/29/2014 by wareagle
Go to this Forum

See all Blog Entries

Section Blogs

Lab Equipment Blog

114 blog entries, 599 comments (0 Viewing)

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: 185, 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: 368, Comments: 0

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: 402, Comments: 5
Last comment 09/29/2014 by Unredundant
Go to this Blog

Electrical Components

125 blog entries, 1653 comments (0 Viewing)

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: 286, 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: 155, Comments: 0

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: 475, Comments: 12
Last comment 07/14/2014 by redfred
Go to this Blog

Wire and Cable Technology Blog

72 blog entries, 879 comments (0 Viewing)

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: 492, 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: 425, Comments: 4
Last comment 08/05/2014 by pnaban

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: 507, Comments: 3
Last comment 03/12/2014 by SimpleMind
Go to this Blog

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: 432, 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: 488, 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: 463, Comments: 0
Go to this Blog

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: 394, 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: 304, 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: 412, Comments: 0
Go to this Blog

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: 1541, 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: 1214, 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: 2462, 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: 791, 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: 1491, 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: 2011, Comments: 8
Last comment 10/13/2012 by ferd