ABB DPT-CB011双电源自动转换开关；DPT250-CB011 R160 3P
首先将双电源放置调整台上，相线与中性线（零线）按位对接，不能接错。
First, the double power supply is placed on the adjustment table, the phase line and the neutral line (zero line) are butted in bit, and can not be mistaken.
三极开关接线时，常用与备用零线需接至零线端子（NN与RN）位置上。
When the tri pole switch is connected, the zero line terminals (NN and RN) are frequently used in connection with the spare zero line.
线接完后，需要在次对安装的线路进行检查，然后打开调试台总开关，开启常用及备用工作电源。
After the line is finished, it is necessary to check the installed line at the next time, then open the total switch of the debug table, and open the common and standby power supply.
当双电源转换开关在自投自复模式，两路工作电源正常的情况下，开关应自动转换至常用电源位。
When the dual power switching switch is in self - switching mode and the two power supply is normal, the switch should be automatically converted to the common power supply.
设置常用电源NA、NB、NC、NN任意相断相，双电源应转换至备用电源，如常用电源恢复正常，应重新转换至常用电源。
Set up common power supply NA, NB, NC and NN to phase off any phase. Dual power supply should be converted to standby power, such as normal power supply is returned to normal, and it should be re converted to the common power supply.
调节常用电源任意一相至规定电压值以下（即欠压状态），双电源应转换至备用电源。当常用电源恢复正常，应重新转换至常用电源。
To adjust the common power supply from any phase to the specified voltage (or under voltage state), the dual power supply should be converted to the standby power supply. When the common power supply is restored to normal, it should be reconverted to the common power supply.