POWTECH PT200 and PT100 series

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POWTECH PT200 and PT100 series
Posting date : Aug 20, 2013
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85-
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Mr showyee Shu from POWTECH Benefits of Variable frequency inverter 1. Achieve energy savings 30% at least , if you have an AC motor-driven application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a variable speed drive (VSD, aka variable frequency drive). Variable speed drives allow you to match the speed of the motor-driven equipment to the process requirement. There is no other method of AC motor control that allows you to accomplish this. 2. Tighten process control, make industry control more easier. Variable speed drives, and the loads they are applied to, can generally be divided into two groups: constant torque and variable torque. The energy savings potential of variable torque applications is much greater than that of constant torque applications. Variable torque loads include centrifugal pumps and fans, which make up the majority of HVAC applications. Constant torque loads include vibrating conveyors, punch presses, rock crushers, machine tools, and other applications where the drive follows a constant V/Hz ratio. 3. Reduce equipment maintenance by installing variable frequency drives (VFDs) Single-speed starting methods start motors abruptly, subjecting the motor to a high starting torque and to current surges that are up to 10 times the full-load current. Variable speed drives, on the other hand, gradually ramp the motor up to operating speed to lessen mechanical and electrical stress, reducing maintenance and repair costs, and extending the life of the motor and the driven equipment.

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