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件下的降压起动，利用变压器降压的特点，降低电动机的起动电流，以改善电动机起动时对输电网络的影响。 变压器按gb14048.4及相关标准设计、制造与检
http://blog.alighting.cn/wldqylq/archive/2010/6/22/51837.html2010/6/22 16:20:00
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操动机构，分为电动和手动两种.技术参数型号zw8-12;额定电压12(kv)额定电流630(a)额定短路开断电流20(ka)额定短路关合电流50(ka)额定峰值耐受电流50(k
http://blog.alighting.cn/wldqylq/archive/2010/6/22/51875.html2010/6/22 16:44:00
