Double-cable drum power supply control circuit and method

• Main Authors: XIE SHAONAN, ZHOU YUWEI, PAN LEI, LI HONGMIN, WANG KEXIN, LU QIANG, ZHANG CHUANPING, ZHU YI
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention relates to a double-cable drum power supply control circuit and method, and the circuit comprises a control loop which is electrically connected with a first cable and a second cable, and comprises a switching circuit and a shunt trip coil unit. The switching circuit and the shunt trip coil unit are connected in series between the first cable and the second cable, so that when the first cable and the second cable are in short circuit, the shunt trip coil unit is kept in an open circuit state. According to the invention, the phase sequence of the first cable and the second cable is automatically detected through the control loop, so that whether the double cables can normally supply power or not can be judged, the starting process of power transmission to the portal crane is simplified, and the working efficiency is improved. 本申请涉及一种双电缆卷筒供电控制电路及方法，其包括控制回路，所述控制回路分别与第一电缆和第二电缆电连接，所述控制回路包括开关电路和分励脱扣线圈单元，所述开关电路和所述分励脱扣线圈单元串联于所述第一电缆和第二电缆之间，以使所述第一电缆和第二电缆短接时，所述分励脱扣线圈单元的保持断路状态。本申请具有通过控制回路自动对第一电缆和第二电缆的相序进行检测