{
  "$type": "site.standard.document",
  "description": "A partial converter system (2) includes a branch pair (3) comprising two series-connected driven power semiconductor switches with each having a diode reverse-connected in parallel. The branch pair is connected in parallel with branch pairs (13,14) connected to an electrical energy store (4). A…",
  "path": "/patents/1088905",
  "publishedAt": "2004-03-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02J3/1814",
    "ABB SCHWEIZ AG [CH]"
  ],
  "textContent": "A partial converter system (2) includes a branch pair (3) comprising two series-connected driven power semiconductor switches with each having a diode reverse-connected in parallel. The branch pair is connected in parallel with branch pairs (13,14) connected to an electrical energy store (4). A junction point of the switches of branch pair (3), forms a terminal (18) of converter system. An Independent claim is also included for method of operating voltage maintenance device.",
  "title": "Device for maintaining the voltage of an electric AC grid and method of operating the device"
}