设计一个控制一台三相异步电动机的控制电路:Y-△降压起动;停机时进行能耗制动;具有保护环节 哈尔滨理工大学电气工程及其自动化专业怎么样
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1\u7535\u7f06\u7cfb
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2\u9ad8\u7535\u538b\u7cfb
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3\u7535\u673a\u7535\u5668\u53ca\u5176\u63a7\u5236\u7cfb
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4\u7535\u6c14\u6280\u672f
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6.\u7535\u529b\u7cfb\u7edf\u53ca\u5176\u81ea\u52a8\u5316\u7cfb
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交流电机能耗制动制动控制类型较多,主回路有变压器串可调电阻式、自耦调压器式等,主要是为了方便调制制动电流;控制回路有速度控制、时间控制等方式。下图为Y-△降压起动;停机时进行能耗制动的一般原理图,图中电机制动时,电机为三角形接法,当然也可采用星形接法。
绛旓細鍋氫竴涓帴瑙﹀櫒鑱旈攣姝e弽杞鎺у埗灏卞彲浠ヨ揪鍒拌姹傘傚鍥撅紝鐭矾淇濇姢FU1(涓诲洖璺級銆丗U2锛堟帶鍒跺洖璺)锛岃繃杞戒繚鎶R锛屼簰閿並M2銆並M1杈呭姪甯搁棴瑙﹀ご銆
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