Superconductors
and their applications in the future are not just "theoretical"
anymore. Many companies are presently building their own superconductors for
their own purposes. Examples of the companies building high temperature
superconductors (HTS) to create/transport our electricity are General
Electric, American Superconductor, Southwire, and Waukesha Electric.
General
Electric is using the properties of high temperature superconductors to
create a generator. In creating a HTS generator, General Electric is using
superconducting wire in place of present day iron magnets, thus making
the new generators smaller, lighter, and more efficient, meaning more
power from less fuel. Currently, GE has already developed a design for
a 100-megavolt-ampere generator using HTS technology. General Electric
has also successfully created a HTS fault-current limiter. A fault-current
limiter detects abnormally high current in the utility grid (examples:
downed utility poles or lighting strikes) and can then reduce the high
current to a lower, more suitable, current the grid can handle.
Southwire
is currently the team leader of SPI (Superconductivity Partnership Initiative),
a program developing HTS power cables that will be able to allow the transport
of power through the power lines without the loss of energy and with increased
electric capacity. Such systems will also save money, space, and energy.
The program’s goal was to complete the development, installation,
and testing of a 100-foot, three phase HTS power cable that would operate
on 12.5kV and supply 1250A of power. On the eighteenth of February, 2000,
such a cable began delivering power to three Southwire manufacturing plants
and successfully surpassed 6,000 hours of continuous operation. Already,
Southwire is in the process of negotiating with several utility companies
the installation of superconducting power cables in a working grid. As
you can see, we are already well on the way to perfecting the high temperature
superconductor. With the support of many major companies, HTS goals are
not out of reach. On the contrary, high temperature superconductors are
well within our grasp. |
HTS Wire

Ship Propulsion Motors

Ship Propulsion Generators

Industrial Motors
All images courtesy of American
Superconductor.
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