utilizes a variable frequency ac drive and a Schaffner ECOsine harmonic filter
in one complete package solution for an IEEE519 1992 compliant for variable
torque fan and pump motor applications.
FRENIC-EcoPAK LH is available
for 25 to 500 Hp 460V ac 3Ph motor applications. With the increasing emphasis
on reducing energy consumption backed by energy rebates and maintaining power
quality to avoid penalty fees from utility companies, variable frequency drives
are being required to comply with IEEE519 1992 more often. FRENIC-EcoPAK LH allows contractors to
purchase and install a variable frequency drive solution that will save energy
while maintaining harmonic current and voltage distortion at or below that
required by IEEE519 1992. Thus allowing a variable frequency drive solution
perfect for installations where other sensitive electronic equipment is
connected to the same electrical distribution system. The most common approach
taken by other variable frequency drive manufactures is to offer multi-pulse
drives, this approach has some inherent disadvantages, including large physical
size, and high cost. In order to provide
a multi-pulse drive typically manufacturers install an additional six or 12 pulse
diode bridges external to the drive and provide a large phase shifting
transformer. A multi-pulse drive
solution is typically larger, higher in cost, and less efficient than FRENIC-EcoPAK
LH's variable frequency drive and
Schaffner ECOsine harmonic filter solution.
Some humanoid walking robots are also good at running, balancing, and coordinated movements in group settings. Several of our sports robots have won regional or worldwide acclaim in the RoboCup soccer World Cup, or FIRST Robotics competitions. Others include the world's first hockey-playing robot and a trash-talking Scrabble player.
The DDV-IP is a two-wheeled self-balancing robot that can deliver cold beverages to thirsty folks on hot summer days. A wireless RF remote enables manual control of the device beyond the act of self-balancing. All of the features of the DDV-IP result in an effective delivery vehicle while providing entertainment to the user.
Eric Doster of iFixit talks about the most surprising aspect of the Microsoft Surface Pro 3 teardown. In a presentation at Medical Design & Manufacturing Midwest, iFixit gave the Surface Pro 3 a score of one (out of a possible 10) for repairability.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.