Transformation of high-voltage drop-out fuses
Transformation of high-voltage drop-out fuses
As an important distribution line protection device, the role of the fuse cannot be underestimated. The application of the fuse can control the short circuit of the power line in a low-cost and high-efficiency way. Its functionality is beneficial to the protection of lines and transformers. Therefore, in the current construction of power lines, especially in the construction of high-voltage power lines, the application of fuses has become more common.
In order to improve the the operation convenience of high-voltage drop-out fuses, attention should be paid to the transformation of high-voltage drop-out fuses. Below aspects should be noticed during the transformation process.
- The basic principles of implementing the transformation of fuse cutout.
The development of the rapid replacement device for drop-out fuses will follow the principles of unity, practicality, forward-looking, advanced and reliable.
Mainly include:
- In the process of fuse cutout design and transformation, it must be carried out in strict accordance with the intensive standards. It is required that the renovation can follow the principle of unified leadership and unified standards, and can carry out orderly renovation design on the basis of unified management and unified deployment.
- During the transformation process, the operation convenience and equipment efficiency should be improved as much as possible, meanwhile, to avoid complexity.
- The design transformation of fuses need to use more advanced technologies, avoiding traditional and backward technologies, the application maximizes the safety of the retrofit design.
- Overall technical route construction.
When a power supply failure occurs with a drop out fuse, the equipment should be inspected to find out the cause of the failure, analyze whether the equipment can continue to be used. And pay attention to the transfer of load, use the section switch to solve the problem of load transfer. At the same time, install insulating support tools on the drop-out fuse, that is, install the processed drop-out fuse, connect the wires to the upper and lower pile heads of the fuse, and install the connecting fixture. Clamps are mounted to allow controlled tightening with insulating rod operation. After the drop-out fuse is installed, remove the fuse tube, put the insulating rod on the connection fixture of the lead-out line of the lower pile head, hang the original drop-out fuse, and hang the drain wire of the lower pile head directly on the branch line, and use The insulated tool slowly rotates the fastening screw until the connection is stable, so that the fuse can be replaced quickly, and the fault can be repaired at the fastest speed to ensure the effective protection of the user’s power distribution equipment.
- Modification of the contact part of the fuse tube.
The purpose of the modification of the contact part is to improve the reliability of the connection between the working head of the insulating rod and the lower contact of fuse tube, thereby improving the convenience and success rate of removing and hanging the fuse cutout.
The Y-shaped hook is installed on the moving contact. The Y-shaped hook has its own limit function, which can maximize the mutual cooperation of the working heads of the insulating rod during the installation process, and effectively improve the connection effect between the insulating rod and the equipment. It is very convenient for technicians to install equipment and reduce the risk of fuses falling possibility.
To sum up, a Y-shaped hooks is designed as a method to assist the insulating rods operation, and effectively improve the firmness of equipment installation and operation convenience. It has a great control effect on the self-fusing problem of the high-voltage drop-out fuse, can guarantee equipment application results and can provide safety of operator.
