专利名称：Methods of and Systems for Improving the
Operation of Electric Motor DrivenEquipment
发明人：Kenneth J. SOUTHWICK,Renato VALDES申请号：US12900813申请日：20101008
公开号：US20110149678A1公开日：20110623
专利附图：
摘要：A method of operating a motor is disclosed. The motor has a nameplateoperating frequency and at least a first and second wiring configuration for operating at
a first nameplate voltage and second, higher, nameplate voltage, respectively. Themethod includes operating the motor in the first configuration at a frequency and avoltage based on a set of frequency versus voltage ratios over a range of frequencies. Afirst ratio in a lower portion of the frequency range is lower than a second ratio in amiddle portion of the frequency range. A third ratio in an upper portion of the frequencyrange is lower than the second ratio. The range of frequencies extends from a valuebelow the nameplate frequency to a value above the nameplate frequency. The
corresponding range of voltages extends from a value below the first nameplate voltageto a value above the first nameplate voltage.
申请人：Kenneth J. SOUTHWICK,Renato VALDES
地址：Pembroke MA US,West Roxbury MA US
国籍：US,US
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