iii
Table of Contents
1. INTRODUCTION .................................................................................................................................1
1.1 GENERAL DESCRIPTION ......................................................................................................................................... 1
1.2 DATA SHEETS ............................................................................................................................................................. 2
1.2.1
WB/PB 2.7 SERIES ........................................................................................................................................ 2
1.2.2
WB/PB 43 SERIES ......................................................................................................................................... 9
1.2.3
WB/PB 65 SERIES ....................................................................................................................................... 17
1.2.4
WB/PB 115 SERIES ..................................................................................................................................... 25
1.2.5
WB/PB 15 SERIES ....................................................................................................................................... 33
2. INSTALLATION / MOUNTING ..........................................................................................................41
2.1 LOCKING THE DYNAMOMETER FOR TRANSPORT ......................................................................................... 41
2.1.1
WB/PB 2.7 SERIES ...................................................................................................................................... 42
2.1.2
WB/PB 43 SERIES ....................................................................................................................................... 43
2.1.3
WB/PB 65 SERIES ....................................................................................................................................... 44
2.1.4
WB/PB 115 SERIES ..................................................................................................................................... 45
2.1.5
WB/PB 15 SERIES ....................................................................................................................................... 46
2.2 MOUNTING THE DYNAMOMETER TO THE TEST BENCH ............................................................................... 47
2.2.1
ALIGNING THE DYNAMOMETERS ON THE TEST BENCH ................................................................ 47
2.2.2
VIBRATIONS INDUCED BY THE TEST BENCH .................................................................................... 47
2.3 COUPLINGS ............................................................................................................................................................... 48
2.4 MEASURING RANGE ............................................................................................................................................... 49
2.5 DRAG TORQUE ......................................................................................................................................................... 49
2.6 TOLERATED RADIAL AND AXIAL FORCES ....................................................................................................... 49
2.7 CONNECTING THE COOLING SYSTEM ............................................................................................................... 50
2.8 PROTECTIVE SYSTEMS .......................................................................................................................................... 50
2.9 POWER/HEAT DISSIPATION ................................................................................................................................... 52
2.10 TORQUE–SPEED–POWER CURVES ...................................................................................................................... 52
3. COOLING ..........................................................................................................................................58
3.1 DYNAMOMETER COOLING ................................................................................................................................... 58
3.1.1 CONNECTIONS........................................................................................................................................... 58
3.1.2
WATER FLOW AND PRESSURE ............................................................................................................... 58
3.1.3
COOLING WATER CONSUMPTION ......................................................................................................... 58
3.1.4
TEMPERATURE SENSOR .......................................................................................................................... 58
3.2 OPEN-CIRCUIT COOLING SYSTEMS ................................................................................................................... 59
3.2.1 EXAMPLE .................................................................................................................................................... 59
3.3 CLOSED-CIRCUIT COOLING SYSTEMS .............................................................................................................. 60
3.3.1 EXAMPLE .................................................................................................................................................... 60
3.4 COOLING WATER ISSUES ....................................................................................................................................... 61
3.4.1 IMPURITIES ................................................................................................................................................ 61
3.4.2 HARDNESS .................................................................................................................................................. 61
3.4.3 FILTERING .................................................................................................................................................. 62
3.4.4
CONTROLLING THE WATER FLOW RATE ............................................................................................ 62
3.4.5
WATER INHIBITORS .................................................................................................................................. 62
3.4.6 CONDENSATION ........................................................................................................................................ 63
3.5 COOLING CIRCUIT PURGING ............................................................................................................................... 63