Eddy-current & Powder Brake Dynamometers WB/PB 15
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Eddy-current & Powder Brake Dynamometers WB/PB 15 - 1

M AGTROL WB/PB 15 Data Sheet WB/PB 15 Series Eddy-Current and Powder Dynamometers Features • • • • • • • • • • 7 Models with Maximum Torque from 140 N·m to 1200 N·m (103 lb·ft to 885 lb·ft) Braking Power: 12 kW to 140 kW Stable Braking Torque, without Shock Low Moment of Inertia Low Residual Torque Operation in Either Rotational Direction Braking Torque Measurement Included High Rotational Speed Rated Torque Available From Zero Speed (Powder Dynamometers) Integrated Optical Speed Sensor Description Model 4 WB 15 Eddy-Current Dynamometer Motor Testing Systems Eddy-Current Brake Dynamometers (WB series) are ideal for Magtrol’s M-TEST 5.0 Software is a state-of-the-art motor applications requiring high speeds and also when operating in testing program for Windows®-based data acquisition. Used the middle to high power range. Eddy-Current Brakes provide with a Magtrol DSP6001 Programmable Dynamometer increasing torque as the speed increases, reaching peak torque Controller, Magtrol M-TEST 5.0 Software provides the control at rated speed. The dynamometers have low inertia as a result of any Magtrol Eddy-Current or Powder Brake Dynamometer of small rotor diameter. Brake cooling is provided by a water and runs test sequences in a manner best suited to the overall circulation system, which passes inside accuracy and efficiency of the Magtrol the stator to dissipate heat generated by Magtrol offers three types of dynamometer Motor Test System. The data that is the braking power. The water cooling in brakes to absorb load: Hysteresis, Eddy- generated by Magtrol’s Motor Testing the WB provides high continuous power Current and Magnetic Powder. Each type Software can be stored, displayed and of Dynamometer has advantages and ratings (max. 140 kW). printed in tabular or graphic formats, limitations and choosing the correct one will and can be easily imported into a Powder Brake Dynamometers (PB depend largely on the type of testing to be spreadsheet. performed. With over 50 models to choose series) are ideal for applications operating from, Magtrol Sales professionals are readily in the low to middle speed range or available to assist in selecting the proper Written in LabVIEW™, M-TEST 5.0 when operating in the middle to high Dynamometer to meet your testing needs. has the flexibility to test a majority torque range. Powder Brakes provide of motor types in a variety of ways. full torque at zero speed and are waterBecause of LabVIEW’s versatility, obtaining data from other sources (e.g. thermocouples), cooled, allowing for power ratings up to 48 kW. Both WB and controlling motor power and providing audio/visual indicators PB Dynamometers have accuracy ratings of ±0.3% to ±0.5% full is relatively easy. scale, depending on size and system configuration. Applications Mounted on test benches, WB/PB 15 Series Dynamometers allow performance and reliability testing on driving elements such as electric motors, combustion engines, servomotors, geared motors, reduction gears, pneumatic equipment, hydraulic transmission systems, starter motors, electromagnetic clutches, gas turbines and turbocompressors. Magtrol’s M-TEST 5.0 Software is ideal for simulating loads, cycling the unit under test and motor ramping. Because it is easy to gather data and duplicate tests, the software is ideal for use in engineering labs. Tests can be programmed to run on their own and saved for future use allowing for valuable time savings in production testing and incoming/outgoing inspection. www.magtrol.com

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Eddy-current & Powder Brake Dynamometers WB/PB 15 - 2

System Configurations WB/PB 15 Single Dynamometer Configurations The Dynamometers can be complemented by various electronic modules such as the DES 311 Power Supply, TSC 401 Torque/ Speed Conditioner and DSP6001 High Speed Programmable Dynamometer Controller. Eddy-Current (WB) OR Powder Brake (PB) Dynamometer TSC 401 Torque-Speed Conditioner Speed Torque Excitation DES Power Supply DSP6001 Dynamometer Controller PC CAUTION: DOUBLE POLE FUSING 75VA 50/60Hz AUX / TSC2 BRAKE ACCESSORY TORQUE–SPEED OUTPUT DYNAMOMETER / TSC1 CTRL OUT SUPPLY 2 SUPPLY 1 M-TEST GPIB/IEEE–488 RS-232C EARTH GROUND...

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Eddy-current & Powder Brake Dynamometers WB/PB 15 - 3

Specifications WB 15 Eddy-current dynamometer OPERATING PRINCIPLES The WB Eddy-Current Dynamometers develop their full power at high rotation speeds. The 15 Series is particularly intended for motors which rotate at high speeds, up to 7500 rpm. The braking torque depends on the rotation speed. WB dynamometer ratings Rated Torque Drag Torque De-energized N·m Model N·m lb·ft lb·in Nominal Input Inertia kg·m² lb·ft·s² 10-2 Rated Power Rated Speed Max. Speed Excitation Current* A kW rpm rpm 10-2 1 WB 15 140 103 1.4 12.3 5.00 × 35 2390 7500 4 2 WB 15 280 206 2.8 24.7 1.00 × 10-1 7.37 × 10-2 70...

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Eddy-current & Powder Brake Dynamometers WB/PB 15 - 4

Specifications PB 15 Powder dynamometer OPERATING PRINCIPLES The PB Powder Dynamometers contain, as their name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction between rotor and stator. The Powder Dynamometers (PB) produce their rated torque at zero speed. The element to be tested can be loaded at standstill to determine the starting torque. PB dynamometer ratings Rated Torque Drag Torque De-energized N·m Model N·m lb·ft lb·in Nominal...

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Eddy-current & Powder Brake Dynamometers WB/PB 15 - 6

Tandem Specifications WB/PB 15 Tandem OPERATING PRINCIPLES Because the characteristics of the WB and PB dynamometers are complementary, Magtrol is able to offer them mounted in a tandem setup. Each dynamometer (WB and PB) can autonomously operate according to its own characteristics. An electromagnetic clutch is needed for this application which automatically switches off at the maximum speed of the PB Powder Dynamometer and automatically switches on at zero speed. tandem dynamometer ratings Rated Torque Model N·m 2 WB 15 + EK + 1 PB 15 lb·ft 300 221 Drag Torque De-energized N·m lb·in 8.8...

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