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Liquid Rheostat
Flomatcher's Liquid Rheostat Control System matches pump
motor speed to the changing flow rates of water and waste water treatment systems.
Wattmiser
The Wattmiser is an adjustable speed drive system that
varies the speed of a wound rotor induction motor steplessly and efficiently.
Wattmiser II
The Wattmiser II system has better overall system efficiency
compared to other methods of controlling the speed of a motor such as secondary
resistance, eddy current clutches and adjustable frequency drives (AFD's). Power
factor of .95 or better.
VFD's
A Variable Frequency Drive (VFD) is an adjustable frequency
converter for use with ac induction motors. The VFD controls the speed of the motor by
varying the frequency of the applied voltage.
Pacesetter
PACESETTER RELIABILITY - Marathon Electronics adjustable
speed drives combine simplicity and low cost with proven performance and reliability.