1) Electric transformer
Found on
https://www.crosswordclues.com/clue/vector-group
In electrical engineering, a vector group is the International Electrotechnical Commission (IEC) method of categorizing the high voltage (HV) windings and low voltage (LV) winding configurations of three-phase transformers. The vector group designation indicates the windings configurations and the difference in phase angle between them. For exampl...
Found on
http://en.wikipedia.org/wiki/Vector_group
No exact match found.
