Electric shock hazard. Some motor parts are live. Any contact with live parts can cause
severe injury or death. Motors have dangerous rotating parts and hot surfaces.
Ensure that:
• the motor runs correctly (e.g. no variations in speed, no noise emission),
• there are no strong vibrations.
The insulation resistance must be checked after a long period of storage or shutdown, if
possible at a winding temperature of +68°F … +86°F. Before starting to measure the
insulation resistance, pay attention to the operating instructions of the insulation
measurement instrument being used.
Measuring voltage: 500 V.
Minimum insulation resistance for new, cleaned or overhauled windings: 10 MΩ.
Critical specific insulation resistance after a long period of operation: 0.5 MΩ / kV.
If the critical insulation resistance is reached or undershot, the windings must be dried, or
thoroughly cleaned and dried after removing the rotor.
To Next Page
Loading...
