电极锅炉类大负荷供电主接线方式比较

包宜栋（上海市政工程设计研究总院（集团）有限公司，上海市 200092）

Comparison of Main Wiring Methods for High‑load Power Supply of Electrode Boilers

BAO Yidong（Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092，China）

Abstract：According to the electrical load characteristics of high single‑machine load,fixed operation time and high power supply reliability requirements of electrode boilers,the engineering case of regenerative electrode hot water boilers in the northwest region of China has been dissected to analyze and compare the advantages and disadvantages of the wiring modes of the“one in service,one on standby”lead‑in scheme,the“two inlet wires & sectionalized single bus”scheme,the“two inlet wires & three loads”scheme,the centralized standby power supply scheme and the super‑large load wiring scheme in terms of capacity adaptability,power demand,economical efficiency and load guarantee rate,so as to provide references for selection of power supply modes in electrode boilers of different capacities and similar heavy‑duty electric equipment.

Key words：regenerative;electrode boiler;power supply system;main wiring;standby power supply;wiring mode;load guarantee rate;economical efficiency

摘　要：针对电极锅炉用电负荷单机大、运行时间固定、供电可靠性要求高的特点，通过对我国西北地区某蓄热式电极热水锅炉工程案例的探讨，分析、比较一用一备进线方案、两路进线单母线分段、二进线带三负荷、集中备用电源方案和超大负荷接线方案等主接线方式在容量适应性、电源需求、经济性、负荷保障率等方面的利弊，为不同容量的电极锅炉及同类大负荷用电设备的供电模式选择提供参考。

关键词：蓄热式；电极锅炉；供电系统；主接线；备用电源；接线方式；负荷保障率；经济性

中图分类号：TK229.92           　  文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2023.06.009