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.
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