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procedures for the determination of the risk of failure free operation of a frequenzumrichters
procedures for the determination of the risk of failure free operation of a frequenzumrichters
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机译:频率检查器无故障运行的风险确定程序
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摘要
The method involves measuring an intermediate circuit voltage (UZK) and determining a network-side intermediate circuit current (iZKnetz) during the operation of a frequency converter (2). These measuring quantities are compared with preset operating values of the converter. The frequency of the higher and lower measuring quantities is determined and converted into a characteristic number for the quality of a feeding network (18).
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