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D.K.
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Whatever Happened to Superconducting Power Lines?
D.K.   1/24/2014 12:49:36 PM
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Don't worry.

After a squirrel or woodpecker punctures the cryo jacket, the lines will meltdown and FEMA will have yet another fire they can't put out.

ChristophZ
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Re: Gimme a break: Maxwell's Equations have not been repealed!
ChristophZ   1/24/2014 2:39:49 AM
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Thanks!

I needed this kick into my brain (so it started to think ;-) ) to get a clearer picture.

Brakeshoe
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Gimme a break: Maxwell's Equations have not been repealed!
Brakeshoe   1/23/2014 3:44:56 PM
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Oh, Gimme a Break! Maxwell's Equations have not been repealed!

Look at the illustration of the 3φ transmission cable in figure 1, and calculate the shunt capacitance... And then the shunt reactance at 60 Hz.

This is why we don't use underground power distribution cables except for very short distances.

Of course, we can use DC transmission, at last count up to 250kV for underwater cables, but the inverter losses far outweigh any i²R cable losses.

Dan Schwartz
Editor, The Hearing Blog

anon2975164
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Coming soon ...........
anon2975164   1/23/2014 1:27:51 PM
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The press likes to jump on whatever bandwagon comes along, especially if it has a catchy name.  Besides superconductivity, there were Bucky balls, nano-anything, stem cells to cure anything from hangnail to cancer, fusion reactors, breakthrough batteries, self driving vehicles, and now 3D printing.  While we're waiting, we'll have to be content with the latest development in new ways to tweet (or is it twitter?). 

Ecspress
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Distributed Power Generation
Ecspress   1/23/2014 12:27:03 PM
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I think power transmission will not be the main driver for HTSC development. Advances in distributed power generation and storage (solar cells, fuel cells and batteries) will reduce the demand for bulk power transmission. Of course there will always be demand for power transmission, but I think the growth rate will be slower. Application in electrical machines and electronics will be the main drivers.

amartin212
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What about STI
amartin212   1/23/2014 12:22:53 PM
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In their last earnings call they claimed to being filling the first few purchase orders for Conductus wire in multiple use cases?

CraigPatten
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Well, what did happen to them??
CraigPatten   1/23/2014 11:46:35 AM
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Dissappointing that you don't actually say what happened to them! I used to follow AMSC. One other interesting product they manufacture is a superconducting motor for navy fast patrol boats.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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