Patent ID: 9557754
Date: 2017-01-31
CPC Classifications: G05F,H01F,H01H

Claim:
1. A method of switching taps of an on-load tap changer, the method comprising: providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch, wherein the main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer; triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received; utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation; wherein one end of each of the main finger, the first side finger and the second side finger is connected to the power terminal of the on-load tap changer.