To power the fan it is now possible for a high efficiency permanent magnet direct drive motor to be coupled directly to the fan.
Direct drive cooling tower fan motor.
Since 2011 spx cooling technologies inc.
There are multiple direct drive options in which the motor directly drives the cooling tower fan.
Direct drive permanent magnet motors are a newer technology available on most marley nc cooling towers.
Advances in motor power density using laminated steel frame construction combined with high flux strength permanent magnet salient pole rotor technology results in a high torque slow speed low profile motor that is mounted directly to the fan and operates at variable speed to maximize system efficiency.
The direct drive fan motor is controlled by a baldor vs1 drive with a specially developed speed control algorithm.
The direct drive motor offers reliability with minimal maintenance requirements.
This combination provides high torque and low speed required for these applications without additional drivetrain components.
A common direct drive option uses a permanent magnet motor.
Cooling tower duty motors are specially designed for the harsh environment inside a cooling.
The fan drive system provides the cooling air necessary to reject unwanted heat from the system to the atmosphere.
This is a type of electric motor with rare earth permanent magnets incorporated into the rotor.
All bac drive systems.
The same electric motor and control technology that is being used to power today s most sophisticated hybrid vehicles is now being adapted for cooling tower drive applications.
The permanent magnet motor directly drives the fan eliminating a number of components including the gear drive driveshaft pillow block bearings and couplings and associated installation and alignment costs.
It fits in the space conventionally occupied by the right angle gearbox with the fan blade mounted directly to its vertical shaft.
After having the tower up for almost a full year i can tell you right now our energy bills are way less.
The motor portion of baldor s adjustable speed direct drive cooling tower fan system replaces the conventional motor driveshaft gearbox combination.
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Use premium efficient cooling tower duty motors and include bac s comprehensive 5 year motor and drive warranty.
Not only does the new tower design maximize cooling but its direct drive air moving system which includes a vfd variable frequency drive fan motor provides significant cost savings on electricity adds voudouris.
Marley insight direct drive fan motor.
This results in less parts less maintenance lower noise and reduced risks.
The direct drive also greatly reduces noise and eliminates the issue of cooling tower water becoming contaminated from leaky gearboxes.
A variable speed drive vsd controls the speed of the high torque direct drive motor for optimal fan operation.
