Helpdesk Softwares Khan Sites: [CR4] Stories for 2012-01-01 Scored My First Century of GAs By electricalexpert65 in Electrical Engineering

Hi! CR4 Forum members! Wishing you all a very happy new year 2012. Glad to inform you all that I have scored my first century of GAs at this forum, right at the start of this new year. On this occasion, I thank all those who asked those questions and also those who have rated my answers as GAs. Than ... more

Cold Box Layer Picture

By nsc in Mechanical Engineering

Hi every body I need a real picture of cold box's individual layers. I want the picture to show the "heat transfer fins" and "distributor fins". Can anyone help me?

Soft Start Relay

By Manfred2 in Electrical Engineering

Hi, I have just destroyed a soft start relay (MCST2450AS, soft start at 50 amps). It was used to limit the inrush current into a 240 volt 45 amp variac. I was thinking of replacing it with a more robust relay (MCSS2490CM, soft start/soft stop at 90 amps). I found the part number in the Crydom catal ...more

Automatic Charge/Invert Circuit

By Anonymous Poster in Electrical Engineering

I have an invertor with a built-in charger.I have to manually switch it to "invert" when the power goes and also manually switch to "charge" when the power comes back. what external circuit can i introduce to make it invert dc to ac automatically when there is a power fail? Also how can i make it ch ...more

Central Splitter/Filters

By Normbourne in Communications & Electronics

I've got a faulty, hard wired Central Splitter/Filter, namely a "1000 ADSL LP" by Alcatel. My question is can I change this for a common or garden, matchbox size filter/splitter. Thanks Norm.

Plastic to Oil

By Johann Vondrus in Chemical & Material Science

I have seen a Japanese invention that converts any plastic back to usable oil. How cost effective is it compared to refining regular oil? it was a small table model I'm sure it could be made using huge tanks to melt the plastic.

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What Is It? 1/1/12

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This week's image: Check back on Wednesday for the answer!

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Shah

By Anonymous Poster in Electrical Engineering

Happy new year to all

All the Very Best to You All.

By TonyS in General Discussion

The title say's it all. I've found friends on this board and for that I thank you all. I hope you will all have a happy, healthy and prosperous 2012

Design for Convenience: a Vacuum Cleaner With Auto Retractable Cord

By iyerkumar in Mechanical Engineering

I was looking for a vacuum cleaner which would have an automatic motorized retractable cord so that I dont spend ages winding the 50 feet cord.. but surprisingly none of the cleaners are designed with such a feature.. You would imagine that by now they would have figured it out how to use the elect ... more

Thanks CR4 Crew

By kramarat in General Discussion

I'm not an engineer. But I have to say, you guys have done an excellent job over the past year. Thank you for creating this place. Thank you for allowing us to be ourselves. Thank you for realizing that we are not bad people, but people with opinions.................opinions that may differ. The ... more

Useful Definitions

By passingtongreen in General Discussion

I was amused when I first heard the story of when a barbarian chief offered to convert his tribe if the Rabbi Hillel could teach him the Torah while standing on one leg. Later, I realized that they had no clocks and had to find practical ways to express lengths of time, and further, the dimensions ...more

Steam Turbine

By rosli in Electrical Engineering

Dear all gentlemen, To Wal Guru,Kabar Tak baik,The boss is jumping now.We spent close to MYR2 Mil for this turbine. Lubrication -no problem-pressure and temperature within limit.NO re blading.Whole 10th stage blade removed permanently.No chance to tear down complete unit.The bos will not accept th ... more