About: http://webisa.webdatacommons.org/171002264

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	The secondary coils of several ring transformers were connected in series, while the primaries of all, except the first, were excited by insulated dynamos.
http://www.w3.org/ns/prov#wasQuotedFrom	teslauniverse.com