In the power measurement field, the meter shunt is one of the most commonly used applications for the 250 uΩ fuse resistor. In this case, the fuse resistor is placed in the circuit so that the fuse lead of the current divider can be directly connected to the circuit, making it easy for the current divider to read the current data in the circuit. In addition, in some cases where high-precision current measurement is required, the fuse resistor can also be used to protect fragile ammeters by isolating the high-voltage part from the low-voltage part, thereby reducing the noise and interference in the circuit.

As the complexity and scale of modern power systems continue to expand, the demand for on-site testing and rapid diagnostics has grown significantly. Whether it’s routine inspections of substations, commissioning of new renewable energy installations, or troubleshooting in industrial facilities, technicians require measurement tools that are easy to carry, quick to deploy, and capable of operating in confined or challenging environments. In response, portability and miniaturization have emerged as defining trends in current clamp design, with innovative products like the SDQxxX series current clamps and 60A CTs with mini magnetic shielding ring structures leading the way. These advancements are not only enhancing operational efficiency but also redefining how electrical measurements are performed in the field.