Tandem Dynamometers provide varied torque/speed capabilities.

Press Release Summary:




Tandem Dynamometer Setups, suited for Eddy-Current (WB) and Powder Brake (PB) Dynamometers, are available in various PB/WB combinations: WB connected to WB dynamometer, PB connected to PB dynamometer, and WB connected to PB dynamometer with clutch or coupling. With WB/PB combination, electrical clutch allows PB dynamometer to disconnect once it reaches its speed limit so that test can continue up to maximum speed capability of WB Dynamometer.



Original Press Release:



Magtrol Tandem Dynamometer Setups Provide Broad Torque and Speed Range Capabilities



Buffalo, NY - Magtrol has developed a tandem setup for their line of Eddy-Current and Powder Brake Dynamometers. When mounted in tandem, the unique features of each type of dynamometer brake are utilized allowing for broad torque and speed range capabilities.

Magtrol's Eddy-Current (WB) Dynamometers are ideal for applications requiring high speeds (up to 70,000 rpm) and when operating in the mid to high speed range. Torque is proportional to speed, reaching peak torque at approximately 10 to 25% of maximum speed capability. The dynamometers have low inertia as a result of small rotor diameter and a low residual torque of 1%. Brake cooling is provided by a water circulation system, which passes inside the stator to dissipate heat generated by the braking power. The water-cooling provides high continuous power ratings to a maximum of 140 kW. The WB dynamometers have accuracy ratings of typically +/- 0.3% to 0.5% full scale, depending on size and system configuration and a very long lifetime. Additional mounting possibilities include speed pick-up, mechanical rotor blocking device, OEM version and vertical mounting.

Magtrol's Powder Brake (PB) Dynamometers are ideal for applications operating in the low to mid speed range and mid to high torque range up to 1200 Nm (850 ft. lbs.) of torque. They provide full torque at zero speed and are water-cooled, with power ratings up to 48kW. They have system accuracy ratings of typically +/- 0.3% to 0.5% full scale, depending on size and system configuration.

Magtrol's Tandem Dynamometers are available in a number of PB/WB combinations; WB connected to a WB dynamometer, PB connected to a PB dynamometer and a WB connected to a PB dynamometer with a clutch or a coupling. With the WB/PB combination, the electrical clutch allows the PB dynamometer to disconnect once it has reached its speed limit so that the test can continue up to the maximum speed capability of the WB Dynamometer. To enable control of the electrical clutch and test system, the Tandem Dynamometer must be connected to a Magtrol DSP6001 High Speed Dynamometer Controller. The combination of the two Dynamometers in tandem allows a large extension of the characteristics of a single dynamometer.

Magtrol, Inc. is a leading solutions provider for Tension and Torque Control, Motor Testing and Load Measurement applications. Magtrol manufactures high quality products to measure and control torque-speed-power, load-force-weight, tension and displacement. For more information on our complete line of products, contact Magtrol, Inc.; 70 Gardenville Parkway; Buffalo, NY 14224; +1-716-668-5555; or visit our web site at www.magtrol.com.

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