End Turn Bracket of Generator Causes Cracking and Treatment Strategies
碩士 === 國立臺南大學 === 綠色能源科技研究所碩士班 === 99 === Because of increasing the design capacity of generator .End turns of generator must suffer more electromagnetic and mechanical force.If the the natural frequencies of end turns of generator close to the electromagnetic excitation frequency. End turns occur l...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/72166059925225291579 |
| Summary: | 碩士 === 國立臺南大學 === 綠色能源科技研究所碩士班 === 99 === Because of increasing the design capacity of generator .End turns of generator must suffer more electromagnetic and mechanical force.If the the natural frequencies of end turns of generator close to the electromagnetic excitation frequency. End turns occur larger resonance value. If the fixed binding of end turns structure or bracket are not enough to resist the resonance. That may cause the fixed binding lose or bracket cracked.
For the preventive maintenance. If natural frequency of end turns close to the electromagnetic excitation frequency that must be done natural frequency adjustment to avoid the resonant opportunities.
In this paper, we provide to actually adjust the natural frequency of end turns.Let the natural frequency can range out the resonant frequency. To prevent cracking bracket to effect of generator life.
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