Rotating electrical machines - Effects of unbalanced voltages on the performance of three-phase cage induction motors Ingestion-build-159183 BS EN 12390-7:2009 replaces BS

BS EN 12390-7:2009 replaces BS EN 12390-7:2000

11 gives you guidelines about the principle of the test methods

BS EN ISO 22442-3:2007 replaces BS EN 12442-3:2000 which has been withdrawn

Minimize softening of the surface of the borehole wall in cohesive soils and degradable rocks

BS 5667-1 provides the safety rules which applies to the following stages:

Rotating electrical machines - Effects of unbalanced voltages on the performance of three-phase cage induction motors Ingestion-build-159183 BS EN 12390-7:2009 replaces BS1 Scope This part of IEC 60034 describes the effects of unbalanced voltages on the performance of three phase cage induction motors.