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Magtrol WB/PB Dynamometers
Chapter 1 – Introduction
1.2.5
WB/PB 15 S
erieS
WB/PB 15
Data Sheet
WB/PB 15 Series Eddy-Current
and Powder Dynamometers
1
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MAGTROL
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
Eddy-Current Brake Dynamometers (WB series) are ideal for
applications requiring high speeds and also when operating in
the middle to high power range. Eddy-Current Brakes provide
increasing torque as the speed increases, reaching peak torque
at rated speed. The dynamometers have low inertia as a result
of small rotor diameter. 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 in
the WB provides high continuous power
ratings (max. 140 kW).
Powder Brake Dynamometers (PB
series) are ideal for applications operating
in the low to middle speed range or
when operating in the middle to high
torque range. Powder Brakes provide
full torque at zero speed and are water-
cooled, allowing for power ratings up to 48 kW. Both WB and
PB Dynamometers have accuracy ratings of ±0.3% to ±0.5% full
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.
Motor testing systeMs
Magtrol’s M-TEST 7 Software is a state-of-the-art motor
testing program for Windows®-based data acquisition. Used
with a Magtrol DSP7000 Programmable Dynamometer
Controller, Magtrol M-TEST 7 Software provides the control
of any Magtrol Eddy-Current or Powder Brake Dynamometer
and runs test sequences in a manner best suited to the overall
accuracy and efficiency of the Magtrol
Motor Test System. The data that is
generated by Magtrol’s Motor Testing
Software can be stored, displayed and
printed in tabular or graphic formats,
and can be easily imported into a
spreadsheet.
Written in LabVIEW™, M-TEST 7 has
the flexibility to test a majority of motor
types in a variety of ways. Because of
LabVIEW’s versatility, obtaining data
from other sources (e.g. thermocouples), controlling motor
power and providing audio/visual indicators is relatively easy.
Magtrol’s M-TEST 7 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.
Model 2WB 15
Eddy-Current Dynamometer
Magtrol offers three types of dynamometer
brakes to absorb load: Hysteresis, Eddy-
Current and Magnetic Powder. Each type
of Dynamometer has advantages and
limitations and choosing the correct one will
depend largely on the type of testing to be
performed. With over 50 models to choose
from, Magtrol Sales professionals are readily
available to assist in selecting the proper
Dynamometer to meet your testing needs.