ABB M3JP Manuel D'installation page 4

6. Motors for explosive atmospheres and variable speed operation ....................................................... 13
6.1 Introduction ...................................................................................................................................... 13
6.2 Main requirements according to EN and IEC standards .................................................................... 13
6.3 Winding insulation ............................................................................................................................ 13
6.3.1
6.3.2
6.3.3
6.4 Thermal protection of windings ......................................................................................................... 14
6.5 Bearing currents ............................................................................................................................... 14
6.5.1
6.6 Cabling, grounding and EMC ........................................................................................................... 14
6.7 Load and speed limitations ............................................................................................................... 14
6.7.1
6.7.2
6.7.3
6.7.4
6.8 Rating plates .................................................................................................................................... 15
6.8.1
6.8.2
6.9 Commissioning the variable speed application ................................................................................. 16
6.9.1
7. Maintenance ............................................................................................................................................... 17
7.1 General inspection ........................................................................................................................... 17
7.1.1
7.2 Lubrication ....................................................................................................................................... 17
7.2.1
7.2.2
7.2.3
7.2.4
8. After Sales support .................................................................................................................................... 21
8.1 Spare parts ...................................................................................................................................... 21
8.2 Dismantling, re-assembly and rewinding ........................................................................................... 21
8.3 Bearings ........................................................................................................................................... 21
8.4 Gaskets and sealing ......................................................................................................................... 21
9. Environmental requirements ..................................................................................................................... 21
10. Troubleshooting .......................................................................................................................................... 22
4 - ML/EN ABB Motors and Generators | 3GZF500730-47 rev F 08-2016
Phase to phase voltages ................................................................................................... 13
Phase to ground voltages .................................................................................................. 13
Selection of winding insulation with frequency converters ................................................. 14
Elimination of bearing currents ........................................................................................... 14
General ............................................................................................................................. 14
Motor loadability with ACS800/880-series of converters with DTC-control ......................... 15
Motor loadability with ACS500 -series and other voltage source converters ...................... 15
Short time overloads ......................................................................................................... 15
Content of standard VSD plate .......................................................................................... 15
Content of customer specific VSD plate ............................................................................ 15
Setting parameters based on the VSD plate ...................................................................... 16
Standby motors ................................................................................................................. 17
Motors with permanently greased bearings ....................................................................... 17
Motors with re-greasable bearings ..................................................................................... 18
Lubrication intervals and amounts ..................................................................................... 18
Lubricants ......................................................................................................................... 20