BK/GDB-V-1.25A

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Fuses are an essential part of an electrical system as they provide an over-current protection device. The BK/GDB-V-1.25A is a fast-acting fuse which is available in a variety of shapes and sizes, making it suitable for many applications. This article will discuss the application field and working principle of BK/GDB-V-1.25A.

Application Field

The BK/GDB-V-1.25A is an industrial-level fast-acting fuse which is designed for use in electricity distribution systems at voltages up to 1000 VAC and currents up to 500 A. It is suitable for controlling over-currents in both single-phase and three-phase systems. The BK/GDB-V-1.25A is commonly used in motor control systems, transformer secondary circuits, and surge-current limiting circuits. It is also used in many harsh environments such as outdoor and marine systems as it is highly resistant to corrosion and vibration.

Working Principle

The BK/GDB-V-1.25A fuse operates on the principle of resistance heating. The fuse consists of a copper conductor with a resistive alloy element embedded in it. As the current passing through the fuse builds up, the embedded resistor element heats up, slowly melting the copper conductor. As the presence of the resistor element reduces the cross-sectional area of the conductor, the resistance of the conductor rises, further limiting the current through the fuse and thereby protecting the device.

When the fault currents exceed the threshold of the fuse, it will blow, interrupting the flow of current and protecting the equipment. Once the fault has been rectified, the fuse can be replaced and the equipment can be restarted. The BK/GDB-V-1.25A is designed to be extremely fast-acting so as to interrupt the flow of current in an extremely short time. This ensures that the equipment is protected quickly and efficiently.

Advantages

The BK/GDB-V-1.25A has many advantages over other types of fuses. It has a high surge-current withstand capacity, making it suitable for use in transformer secondary circuits and surge-current limiting applications. It is also highly resistant to mechanical vibration and corrosion, making it suitable for operation in harsh environments. The fast-acting nature of the fuse ensures that it quickly responds to over-currents, protecting the equipment quickly and reliably.

Conclusion

In conclusion, the BK/GDB-V-1.25A fuse is a fast-acting fuse that is suitable for controlling over-currents in industrial-level electricity distribution systems. It is capable of withstanding high surge-currents, and is highly resistant to corrosion and vibration. The fast-acting nature of the fuse ensures that it quickly responds to over-currents, protecting the equipment quickly and reliably.

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