M AGTROL
WB 23
Data Sheet
WB 23 High-Speed
Eddy-Current Dynamometer
FEATURES
• Torque: 80 mN·m
• Speed: up to 100,000 rpm
• Power: 120 W continuous; 400 W intermittent
• Low inertia
• Very low residual torque
• Stable braking torque, without blows
• Measuring system with air-bearing
• Protection guard included
• Data acquisition via DSP7000 Controller and M-TEST
Software
• Built-in electronics with Torque and Speed measurement
• Optional motor fixture available (AMF)
WB 23 Dynamometer
DESCRIPTION
Magtrol’s new WB 23 Eddy-Current Brake Dynamometer
is designed for very-high-speed motor and engine testing
applications. By providing a braking torque that is proportional
to the rotational speed, rated torque is reached at the rated speed
of 23,000 rpm.
COMPLETE PC CONTROL
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
The WB 23 Dynamometer features a low level of inertia, due to
of any Magtrol Eddy-Current or Powder Brake Dynamometer
small rotor dimensions, and brake cooling is provided by an air
and runs test sequences in a manner best suited to the overall
passage inside the dynamometer housing.
accuracy and efficiency of the Magtrol
This results in the dynamometer’s Magtrol offers three types of dynamometer Motor Test System. The data that is
ability to dissipate 120 watts of power brakes to absorb load: Hysteresis, Eddy- generated by Magtrol’s Motor Testing
(continuous duty), 300 watts for a Current and Magnetic Powder. Each type Software can be stored, displayed and
maximum of 180 seconds or 400 watts of Dynamometer has advantages and printed in tabular or graphic formats,
limitations and choosing the correct one will
for a maximum of 120 seconds.
and can be easily imported into a
depend largely on the type of testing to be
spreadsheet.
A P T 5 0 0 t e m p e r a t u r e s e n s o r performed. With over 50 models to choose
continuously monitors the brake from, Magtrol Sales professionals are readily Written in LabVIEW™, M-TEST 7 has
temperature and alarms the DSP7000 available to assist in selecting the proper the flexibility to test a majority of motor
Controller to stop the brake excitation Dynamometer to meet your testing needs.
types in a variety of ways. Because of
current in order to protect the
LabVIEW’s versatility, obtaining data
dynamometer from overheating.
from other sources (e.g. thermo torques), controlling motor
power and providing audio/visual indicators is relatively easy.
Torque is measured by a reaction-force transducer placed on
the stator. The dynamometer has a torque measuring accuracy
Magtrol’s M-TEST 7 Software is ideal for simulating loads,
rating of ±1% full scale. The speed is measured by an optical
cycling the unit under test and motor ramping. Because it is
sensor and a 6-bit encoder disc. This sensor measures engine/
easy to gather data and duplicate tests, the software is ideal
motor speeds between 10 and 100 000 rpm with a full scale
for use in engineering labs. Tests can be programmed to run
accuracy of ± 0.06 % (using a DSP7000).
on their own and saved for future use allowing for valuable
time savings in production testing and incoming/outgoing
inspection.
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Specifications
WB 23
RATINGS
Model
WB 23
Duration at
Rated Power
Guaranteed
Torque
Rated
Speed
Maximum
Speed
Drag Torque
De-energized
at 100,000 rpm
Nominal
Input
Inertia
Excitation
Current
max.
W
s
mNm
rpm
rpm
mNm
kgm²
A
120
steady
operation
70
16’500
300
180
80
36’000
100,000
2
3.2 × 10-6
0.8
400
120
80
48’000
Rated
Power
Weight: 19 kg
DIMENSIONS
547
Air inlet for tube Ø6mm
Recommended air quality
ISO 8573.1 classe 3
Air flow: 7-10 l/min
Pressure: 4-5 bar (max.6bar)
Filtering and drying kit included beside
235
180
60
sh
af
t
8
4 h6
507
150
3x25=(75)
X
3x25=(75)
450
6 H8
Motor fixture
AMF23 optional
11+1.5
0
5 +10
11
472
280
T-slots DIN 650-6H8
Caution : Due to high speed application, the 1WB23 dynamometer integrates a safety guard. This protection is however not linked to safety interlock preventing system to be opened
during use. Please contact factory if a controlled interlock of the safety guard is required.
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M AGTROL
Torque-Speed-Power Curves
120 W
Test duration
Permanent
Rated Torque
70 mNm
Rated Speed
16’500 rpm
Torque-Speed-Power 120 W Permanent
Power (W)
Torque (mNm)
Power
WB 23
Speed (RPM)
180 s
Rated Torque
80 mNm
Rated Speed
36’000 rpm
Power (W)
300 W
Test duration
Power (W)
Power
Torque (mNm)
Torque-Speed-Power 300 W / 180s
Speed (RPM)
3
M AGTROL
Torque-Speed-Power Curves
400 W
Test duration
120 s
Rated Torque
80 mNm
Rated Speed
48’000 rpm
Torque-Speed-Power 400 W / 120s
Power (W)
Torque (mNm)
Power
WB 23
Speed (RPM)
Time [s]
400
120
300
180
120
Permanent
Power (W)
Power [W]
Duration [s]
Test Duration vs Power
Power [W]
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M AGTROL
System Configuration and Options
WB 23
SYSTEM CONFIGURATION
The WB 23 Dynamometer must be used with a Magtrol DSP7000 Programmable Dynamometer Controller in order to supply
the necessary excitation current and closed-loop control of the test system. In addition, the DSP7000 displays the measured
torque, rotation speed and mechanical power of the motor under test and features a built-in alarm system for user-defined limits.
A Single or Three-phase Power Analyzer, a required component in a test system measuring motor efficiency, can be integrated
into this system as well as Magtrol’s Temperature Testing Hardware.
WB 23 High-speed
Eddy-current Dynamometer
PC
M-TEST
USB
DSP7001 Programmable Controller
Included air filtering and drying kit (PN: 316-101-980-061)
SYSTEM OPTIONS AND ACCESSORIES
CATEGORY
CONTROLLERS
POWER
ANALYZERS
SOFTWARE *
MOUNTING
CALIBRATION
DESCRIPTION
MODEL / PART #
High-Speed Programmable Dynamometer Controller
DSP7000
High-Speed Single-Phase Power Analyzer
6510e
High-Speed Three-Phase Power Analyzer
6530
M-TEST 7 Motor Testing Software
M-TEST 7
Temperature Testing Hardware
HW-TTEST-FP
Adjustable Motor Fixture
AMF-23
Calibration Beam Assemblies and Calibration Weights (included)
316-101-96x-0x1
* For more information regarding software and temperature testing hardware options, refer to the M-TEST 5.0 data sheet.
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M AGTROL
AMF 23 Adjustable Motor Fixture (option)
WB 23
38
+23.5
z
x +4
Motor Ø45 max.
-13.5
Motor Ø10 min.
60
13
13
22
50
65
50
95
123
T-slot screw nut
DIN-508 M5x6
Scale 1 : 2
Due to the continual development of our products, we reserve the right to modify specifications without forewarning.
www.magtrol.com
MAGTROL INC
70 Gardenville Parkway
Buffalo, New York 14224 USA
Phone: +1 716 668 5555
Fax: +1 716 668 8705
E-mail: magtrol@magtrol.com
MAGTROL SA
Route de Montena 77
1728 Rossens / Fribourg, Switzerland
Phone: +41 (0)26 407 3000
Fax: +41 (0)26 407 3001
E-mail: magtrol@magtrol.ch
Subsidiaries in:
Germany • France
China • India
Worldwide Network
of Sales Agents
WB23 07/13
170
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