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Eddy Current Adjustable Dynamometer
Eddy Current Variable Speed Drive
Electronic Speed Controller
Electric Motors
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RS APPLICATION CONTROL PANELS PVT. LTD.
Eddy Current Variable Speed Drive(15 kW to 110 kw)
Product Code :
12
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Product Specification
The primary elements of POWERMAG eddy current variable speed drive are an AC motor, an eddy current clutch, a tacho generator and a seperate small solid-state state electronic controller. The eddy current clutch consists of two rotating members : drum driven at constant speed by the AC motor and within the drum, a rotor / output shaft which connected to the load. Torque is transmitted from the drum to the rotor / shaft through an adjustable magnetic field that attracts the two members. The magnetic field is produced by a clutch coil typically below 2% of the total drive power requirements which means smaller and longer-life controller circuits can be used.
All POWERMAG eddy current variable speed drives have an integral tacho generator mounted around the output shaft, to give voltage and frequency proportional to speed, which is used for speed reference feed back signal to the controller and maintains the output speed within 2% for the load changes form 10% to 100%. It can also be used for speed indication.
SPEED HOLDING ACCURACY
- Closed loop speed control is very accurate. It is achieved by comparing a reference signal with the feedback signal from the tachogenerator mounted on the POWERMAG drive. Any difference or error between these signals causes the output stage SCR to adjust the coil current, there by maintaining the set speed within 2% for load changes from 100% to 10%.
Other Products in 'Eddy Current Variable Speed Drive' category
Eddy Current Variable Speed Drive(0.2 kW to 11 kW)
Modular Design Eddy Current Variable Speed Drive
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