{
  "$type": "site.standard.document",
  "description": "The present invention relates to an on-load tap changer control method for a power excitation chain (1), said chain (1) comprising - a generator (3), - a step-up transformer (5) equipped with an on-load tap changer (7) and connected on the one hand to the output of said generator (3) and on the…",
  "path": "/patents/999754",
  "publishedAt": "2012-08-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G06F1/26",
    "ALSTOM TECHNOLOGY LTD [CH]"
  ],
  "textContent": "The present invention relates to an on-load tap changer control method for a power excitation chain (1), said chain (1) comprising - a generator (3), - a step-up transformer (5) equipped with an on-load tap changer (7) and connected on the one hand to the output of said generator (3) and on the other hand to a transmission bus (9), and - an excitation control system (11) comprising a generator automatic voltage regulator (AVR G ) and at least one excitation limiter (OEL G , UEL G ), comprising the following steps : - monitoring the excitation conditions of the generator, - activating said at least one excitation limiter (OEL G , UEL G ) when the monitored excitation conditions are outside a predefined range, inhibiting temporarily the change of step of said on-load tape changer (7), when said excitation limiter (OEL G , UEL G ) is active.",
  "title": "On-load tap changer control method for a power excitation chain, related unit and power excitation chain comprising such unit"
}