How to choose the specification of the female connector?

I. How is the method of selecting the specification of row mother connector? Row mother specification selection should meet the following 2 principles: to meet the requirements of the flow-carrying capacity, to meet the thermal stability of the calibration, that is, the thermal effect of the short-circuit current. The main consideration of the dynamic stability is the fixed and support of the copper row, that is, the electromagnetic effect of the short-circuit current, high-voltage female specification such as the size of the cross-sectional area of the choice, only need to consider the thermal stability of the calibration, without having to consider the dynamic stability of the calibration. Rated short-time withstand current, is in the specified time (this time is from closing to trip duration), the equipment can withstand the effective value of the current in the closing position, that is, from closing to trip before the time of the equipment and its line components are not melted through the short-circuit current, this is the concept of thermal stability, the line components here can be the busbar. Rated peak withstand current is the most serious short-circuit situation in the system, the equipment in the closed position to withstand the rated peak short-circuit current when the equipment and its line components to generate electric power but not to damage, this is the concept of dynamic stability. Rated short-circuit duration, is the equipment in the closed position to withstand the rated short-term withstand current (rather than the peak current) time, more than this time the equipment tripped, no longer withstand the short-circuit current. High-voltage busbar specifications are selected to meet the above requirements for thermal stability calibration. In the design and assembly, for meeting the requirements of the current-carrying capacity, as long as full consideration of the cross-section of the conductor to meet the requirements on the line. In practice, for the same cross-sectional area of the bus, such as TMY6 * 80 to carry more than TMY8 * 60, the reason is that the former cross-section perimeter than the latter is larger than the same length of the former body area is greater than the latter, the difference in heat dissipation area and the skin effect of the current and other reasons resulting in a different flow rate of the 2.

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