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PowerLink® GW Series Eddy Current Dynamometer Introduction
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PowerLink® GW Series Eddy current dynamometer is the devices used for engine testing. They are used for characteristic investigations in middle and small power rating machines, vehicles, internal combustion engines, gas turbine, engineering machines, the machines used in farming industry, mining industry and fuel oil industry, etc. Eddy Current Dynamometer also acts as the power drive and power absorption equipment.
Model Rated Power
Rated Torque
Maximum Speed Rated Speed Moment of
Inertia Unit kW N.m r.p.m. r.p.m. kgm2
GW6 6 25 14000 2000 0.003
GW10 10 50 13000 2000 0.01
GW16 16 70 13000 2000 0.02
GW25 25 120 11000 2000 0.05
GW40 40 160 10000 2000 0.1
GW63 63 250 9000 2000 0.18
GW100 100 400 8500 2000 0.32
GW160 160 600 8000 2000 0.52
GW250 250 1100 8000 2000 1.8
GW300 300 1600 6000 2000 2.7
GW400 400 2200 5000 2000 3.6
GW450 450 2600 5000 2000 4.3
GW630 630 4000 5000 2000 5.3
GW1000 1000 7000 4000 2000 5.3
GW1200 1200 10000 4000 1800 6.3
PowerLink® Eddy Current Dynamometer Introduction
Eddy Current Dynamometer Models and Parameters
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(Upper Left) Power Property Curve (Upper Right) Torque Property Curve (Lower Left) Loading Property Curve
Eddy Current Dynamometer Property Curves
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1. Simple in structure, convenience in maintenance and operation; 2. Large braking torque, high accuracy and stable operation; 3. Small moment of inertia, fast dynamic reaction; 4. The automatic operation can be fulfilled with the Automatic Test and Control System
Item Model Parameter
Maximum Excited Voltage GW6 ~ 63 90V
GW100 ~ 1200 120V
Maximum Excited Electric Current
GW6~ 63 3A GW100 ~ 400 4A
GW630 8A GW1000 ~ 1200 10A
Coolant
All
Fresh Water Coolant Pressure 0.04 ~ 0.1 MPa Coolant Amount See the graph below Outlet Coolant Temperature <55℃
Operation Direction All Clockwise or anticlockwise
Torque Measurement Accuracy All : ±0.2~0.3%FS
Rotational Speed Measurement Accuracy All : ±1r/min
Eddy Current Dynamometer Characteristics
Eddy Current Dynamometer Major Parameters
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1. Induction Disk 8. Oil Cup 2. Spindle 9. Measuring Speed Transducer 3. Coupling 10. Bearing Stand 4. Exciting Coil 11. Inlet Water Pipe Line 5. Cool Room (Eddy Ring, Left, Right) 12. Support Rings (Left, Right) 6. Gas Clearance 13. External Lining Ring (Outer Casing) 7. Outlet Water Pipe Line 14. Base
Eddy Current Dynamometer Main Structure
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Model A B C D E F G H I1 I2 J K L M
GW6 100 100 330 356 1¼” ½” 177 215 50 50 143 143 600 13
GW10 180 120 330 370 1” ½” 210 300 70 70 260 200 600 18
GW16 180 120 330 370 1” ½” 210 300 70 70 260 200 600 18
GW25 150 150 400 432 1” ¾” 212 320 95 95 220 220 600 18
GW40 240 160 360 400 1¼” ½” 225 330 90 90 330 250 600 18
GW63 240 160 360 400 1½” ¾” 225 350 90 90 330 250 600 18
GW100 240 240 445 485 1” 1” 266 365 82.5 72 360 320 1000 22
GW160 300 300 480 520 1” 1” 300 400 148 81 390 380 1000 22
GW250 360 360 580 640 1½” 1½” 350 470 184 101 485 450 1000 22
GW300 360 360 580 640 1½” 1½” 350 470 180 103.5 485 450 1000 22
GW400 400 400 630 700 2” 2” 400 600 174 128 580 510 1000 28
GW630 430 400 680 760 2” 2” 442 650 184 153 625 595 1000 28
GW1000 550 550 905 1000 2½” 2½” 560 820 240 177 800 700 1500 30
GW1200 600 600 1030 1130 3” 3” 630 950 271 200 885 775 1500 30
Eddy Current Dynamometer Dimensions
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1:10A
B C DE
F
Model A B C D E F
GW6 6-φ6.5 42h6 62 80 2 8 GW10 6-φ6.5 42h6 62 80 2 8 GW16 6-φ6.5 42h6 62 80 2 8 GW25 6-φ6.5 52h6 72 90 2 10 GW40 6-φ8.5 75h6 101.5 125 2 13 GW63 6-φ8.5 75h6 101.5 125 2 13 GW100 8-φ10.5 90h6 130 155 3 16 GW160 8-φ10.5 90h6 130 155 3 16 GW250 8-φ10.5 90h6 130 155 3 16 GW300 8-φ10.5 90h6 130 155 3 16 GW400 8-φ16.5 140h6 190 225 4 27 GW450 8-φ16.5 150h6 205 245 5 27 GW630 8-φ16.5 150h6 205 245 5 27 GW1000 8-M20 160h6 235 275 5 32 GW1200 8-M20 160h6 250 290 5 38
Eddy Current Dynamometer Coupling Dimensions
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GW6
Items Dynamometer types
AC DC Eddy Current Hydraulic
Water Cooling System No No Required Required Real-time Torque Control Very Good Very Good Good Normal Reaction Time milliseconds milliseconds 0.1 second Seconds Technology Advancement High High Normal Normal System Stability High High Very High Normal System Vibration Low Low Normal Normal Repeatability High High Normal Normal Maintainability High High Normal Normal Motoring/ Cold wear test Available Available N/A N/A Investment Cost High Higher Normal Low Operation Cost Low Low High High Range of Power (kW) 20-1000 20-1000 6-1200 120-3000
Types of Dynamometer Comparison
Individual Property Curves