直流供电方式
配电系统常用的直流供电方式有：
①二线制。用于城市无轨电车、地铁机车、矿山牵引机车等的供电。
②三线制。供应发电厂、变电所、配电所自用电和二次设备用电，电解和电镀用电。
潍坊奥腾冷弯机械配电箱箱体冷弯成型设备概述和设计原则：
设备概述：
本机组为配电箱箱体的上料、校平、自动送料、在线冲孔、冷弯成型、框体折弯一次自动完成自动化设备，具有生产效率高、孔距准确、自动化程度高等特点。
设计原则：
此设计本着节省投资，减少工位，使用可靠，便于维护，零部件力争标准化、通用化、使用寿命正常化，关键部位高标准，辅助部位保使用，轧辊易互换、基准统一化的原则，让客户买的放心，用着舒心。
Introduction and design principles of cold forming equipment for distribution box of Weifang OTeng cold forming chine:
Overview of equipment:
This unit is the autotic equipment for feeding, leveling, autotic feeding, on-line punching, cold forming and frame bending for the distribution box. It has the characteristi of high production efficiency, accurate hole cing and high autotion degree.
Design principles:
This design is based on the principles of sing investment, reducing work position, using reliably, easy to intain, standardization of parts and components, norlization of service life, high standard of key parts, intenance of auxiliary parts, easy exchange of rolls and unification of datum. Let the customer buy rest assured, with comfortable.
潍坊奥腾冷弯机械有限公司制造的配电箱箱体冷弯成型设备拥有一套科学合理的自动化控制系统，程序设定不复杂，操作方面易上手，我们的电控系统：
由系统由5.5KW变频器、PLC控制系统、操作台等组成。该系统用于完成整个机组的电气控制，控制柜上装有故障保护装置，如整个机组任何一个控制开关出现故障，整个机组会自动停止动作。
Weifang OTeng cold bending chinery co., Ltd. Has a set of scientific and reasonable autotic control system for the distribution box. The program is not complicated, and the operation is easy to use. Our electric control system is as follows:
By the system by 5.5 KW inverter PLC control system, operating platform and so on. The system is used to complete the electrical control of the whole unit. The control cabinet is equipped with a fault protection device. If any control switch of the whole unit fails, the whole unit will stop autotically.
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