发明名称 |
Frequency inverter with brake resistance and method for monitoring the functionality of a brake resistance during the operation of a frequency inverter |
摘要 |
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. |
申请公布号 |
EP2672622(A1) |
申请公布日期 |
2013.12.11 |
申请号 |
EP20120004351 |
申请日期 |
2012.06.08 |
申请人 |
OSMA-AUFZUEGE ALBERT SCHENK GMBH & CO. KG |
发明人 |
WEBER, ROBERT |
分类号 |
H02P3/22;B60L7/14;H02P29/00 |
主分类号 |
H02P3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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