About: http://webisa.webdatacommons.org/426311890

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Therefore, because there is a time when two phases are of the same electric level or the same electric current as shown in FIG. 3, the present invention switches operate on this time.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com