额定负荷条件下,马达运转温度呈平衡状况
P .....................................负荷
Pv....................................electrical losses
T......................................温度
额定负荷条件下,马达无法再允许时间,温度呈平衡状况
S2-60分(时间代表60分额定)
Tmax..............................maximum temperature
Tb..................................time of operation
额定负荷条件下,连续与恒等运转及休息,温度无法呈平衡状况 例如:S3-5%(百分比代表5%额定)
Tb..............................time of operation
Ts...............................time of rest
Tb + Ts = approximately 1 to 10 minutes
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