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We know that the fusing of the fuse is caused by the melting of the fuse by the heat released by the overcurrent, and the energy that can blow the fuse is the melting heat value I2t of the fuse. In theory, as long as the energy required for the fuse to melt is greater than The energy released by the ... Read More
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The function of the fuse in the circuit includes two aspects: when the circuit fails and generates overcurrent, it should be able to operate within the specified time range to protect the circuit and personal safety; at the same time, when there is a non-fault instantaneous overcurrent in the ... Read More
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The temperature rise of the fuse refers to the temperature rise value of the fuse when 1.1 times (110%) of the rated current flows through the fuse, that is, the value obtained by subtracting the normal temperature from the measured temperature. The UL standard sets its upper limit at 75Co. Because ... Read More
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A suitable fuse should meet at least three requirements: it must be broken when it should be broken, it must not be broken when it should not be broken, and safety must be guaranteed during the breaking process. The first function of the fuse is the protection function, that is, the fuse should play ... Read More
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The short circuit of the current is the direct connection of the fire line and the zero line. Without the electrical appliances, the current circuit that is almost unblocked. The large current passes through the fuse, and the resistance of the fuse suddenly becomes larger and generates the heat. ... Read More
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For the photovoltaic (PV) system, choosing an appropriate fuse is essential for the long -term, safe and reliable operation of photovoltaic power stations. Different from the typical power distribution and control applications, in the photovoltaic system, the fuse is unique. Elements exposed in the ... Read More
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The fusing time is an important parameter of the fuse, which directly reflects the strength of the protection function of the fuse, but it must correspond to the load current. The functional relationship between any load current and the fusing time forms one of the most important performance ... Read More
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As a current-sensitive element, the function of the fuse is to judge the overcurrent: fusing is the protection function of the fuse when the fault overcurrent is not allowed; For non-fault overcurrent such as instantaneous pulse, the fuse should be able to withstand enough times to ensure the normal ... Read More
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Some fuses are often disconnected when starting up or just when connecting the power supply, because the anti-surge capability is not considered in the selection of fuse. Most circuits will generate a transient surge current when they are just connected to the power supply. In capacitive or ... Read More
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Electric vehicle is a high-end industrial product integrating modern high-tech, high electronics, high material technology and manufacturing technology. On-board lithium battery, energy storage capacitor, motor, converter and electric control circuit are all DC systems, which require DC type fuse ... Read More
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