Effect of overload time and current on the metallurgical structure of copper wire 过负荷时间和倍数对铜导线金相组织的影响
The method to calculate thermal time constant and allowable overload time of dry-type transformer is presented. The calculating example with Excel is given. 提出了干式变压器热时间常数和允许过载时间(OT)的计算方法,给出了运用Excel的计算实例。
The initial laboratory experiments show that the application of fuzzy control used in overload protection can improve the accuracy of the forecast for overload time. It can reduce the number of misoperation of protection devices. 经过实验室初步实验证明,模糊控制在过载保护中的应用提高了过载时间(OT)预测的精确程度,减少了保护器的误动次数。
This thesis is focused on the sequencing problem of a mixed-model assembly line with stochastic operation times. Two goals of optimization are considered & minimization of total expected overload time and minimization of total overload probability. 本文研究随机作业时间下混流组装线的最优排产问题,考虑两种目标:最小化总期望超载时间和最小化总超载概率。
Calculation of Allowable Overload Time(OT) of Dry-Type Transformer 干式变压器允许过载时间(OT)的计算