{
  "$type": "site.standard.document",
  "description": "The converter (2) has a measuring unit (10) measuring electric voltage that rests against a brake resistor (8). An evaluating device (12) is connected with the measuring unit for comparing measurement values determined by the measuring unit with stored comparison values. A switching device (6) is…",
  "path": "/patents/980962",
  "publishedAt": "2013-12-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60L7/14",
    "OSMA AUFZUEGE ALBERT SCHENK GMBH & CO KG [DE]"
  ],
  "textContent": "The converter (2) has a measuring unit (10) measuring electric voltage that rests against a brake resistor (8). An evaluating device (12) is connected with the measuring unit for comparing measurement values determined by the measuring unit with stored comparison values. A switching device (6) is connected with the evaluating device that triggers shutdown of intermediate circuit voltage of the brake resistor if the measurement values display a duty cycle of the brake resistance that exceeds a threshold value of the duty cycle given in the evaluating device. An independent claim is also included for a method for monitoring operation of a braking resistor in a frequency converter.",
  "title": "Frequency inverter with brake resistance and method for monitoring the functionality of a brake resistance during the operation of a frequency inverter"
}