{
  "$type": "site.standard.document",
  "description": "An input means inputs, at intervals of a unit time, a current which is supplied from a substation. A first calculation means calculates a current variation amount per the unit time, based on the current which is input at the intervals of the unit time. A holding means holds, at the intervals of the…",
  "path": "/patents/969486",
  "publishedAt": "2014-10-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H02H3/16",
    "TOSHIBA KK [JP]"
  ],
  "textContent": "An input means inputs, at intervals of a unit time, a current which is supplied from a substation. A first calculation means calculates a current variation amount per the unit time, based on the current which is input at the intervals of the unit time. A holding means holds, at the intervals of the unit time, a maximum value of the calculated current variation amount. A second calculation means calculates an operation amount by integrating the maximum value of the current variation amount held by the holding means at the intervals of the unit time. A detection means detects a fault in a section to which a current is supplied from the substation, based on the calculated operation amount.",
  "title": "DC FEEDING PROTECTION RELAY DEVICE AND FAILURE DETECTION METHOD"
}