工厂总降压变电所主结线设计
根据变电所配电回路数，负荷要求的可靠性级别和计算负荷数综合主变压器台数，确定变电所高、低接线方式。对它的基本要求，即要安全可靠有要灵活经济，安装容易维修方便。

4、厂区高压配电系统设计
根据厂内负荷情况，从技术和经济合理性确定厂区配电电压。参考负荷布局及总降压变电所位置，比较几种可行的高压配电网布置放案，计算出导线截面及电压损失，由不同放案的可靠性，电压损失，基建投资，年运行费用，有色金属消耗量等综合技术经济条件列表比值，择优选用。按选定配电系统作线路结构与敷设方式设计。用厂区高压线路平面布置图，敷设要求和架空线路杆位明细表以及工程预算书表达设计成果。

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5、工厂供、配电系统短路电流计算
工厂用电，通常为*的末端负荷，其容量运行小于电网容量，皆可按无限容量系统供电进行短路计算。由系统不同运行方式下的短 路参数，求出不同运行方式下各点的三相及两相短路电流。1756-L61S---1756-L61S

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Cutler Hammer DN50SAA14 Output Module 24VDC 

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Asco S261SF02N3DG5 Solenoid Gas Valve 30PSI 

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