Isolation switch, load switch, and high-voltage fuse are crucial equipment in electrical systems. The isolation switch is used to disconnect the connection between electrical equipment and the power supply to ensure the safe operation of maintenance and repair work. The load switch is used to control the operation of electrical equipment and can achieve the functions of opening, closing, and current regulation. High voltage fuses are used to protect high-voltage electrical equipment. When the current exceeds the setted value, the fuse will automatically disconnect the circuit, protecting the equipment from overload and short circuit current. When we conduct experimental testing on these three circuit breakers, what testing items we need to carry out ?
The test items for isolation switch, load switch, and high-voltage fuse should include the following:
1. Measure insulation resistance;
2. Measure the DC resistance of the high-voltage current limiting fuse tube fuse;
3. Measure the resistance of the conductive circuit of the load switch;
4. AC withstand voltage test;
5. Check the minimum operating voltage of the operating mechanism coil;
6. Test of operating mechanism.
The reasonable use and maintenance of the three types of circuit breaker mentioned above are crucial for the normal operation and safety assurance of the electrical system. Therefore, we need to regularly carry out corresponding testing work in advance to ensure its stable operation.
PowerTel and his associated factories can provide you a full range of isolation switch, load switch, and high-voltage fuse and custom fit to protect your electrical system.