Electric Power Fittings
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High Quality Lightning Arrester Product
The function of the arrester
The main function of the zinc oxide arrester is to prevent the intrusion of lightning waves or internal overvoltage. Usually, the arrester is connected in parallel with the protected device. When the line is struck by lightning and has overvoltage or internal operating overvoltage, the lightning arrester is discharged to the ground to avoid voltage shock waves and prevent the insulation of the protected equipment from being damaged.
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Power Arrester
Function
The arrester is connected between the cable and the ground, usually in parallel with the protected equipment. The arrester can effectively protect the communication equipment. Once an abnormal voltage occurs, the arrester will act and play a protective role. When the communication cable or equipment is running under normal working voltage, the arrester will not work, and it is regarded as an open circuit to the ground. Once a high voltage occurs and the insulation of the protected equipment is endangered, the arrester will act immediately to guide the high-voltage surge current to the ground, thereby limiting the voltage amplitude and protecting the insulation of communication cables and equipment. When the overvoltage disappears, the arrester quickly returns to its original state, so that the communication line can work normally.
Therefore, the main function of the arrester is to cut the invading flow wave and reduce the overvoltage value of the protected equipment through the function of the parallel discharge gap or the nonlinear resistor, thereby protecting the communication line and equipment.
Lightning arresters can be used not only to protect against high voltages generated by lightning, but also to protect against operating high voltages.
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Three-Phase Combined Composite Jacket Zinc Oxide Arrester
Conditions of Use
1. The ambient temperature used is -40℃~+60℃, and the altitude is less than 2000m (higher than 2000m when ordering).
2. The cable length and wiring nose diameter of indoor products should be specified when ordering.
3. When intermittent arc ground overvoltage or ferromagnetic resonance overvoltage occurs in the system, it may cause damage to the product.
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RW12-15 Series Outdoor High Voltage Drop-Out Fuse
Conditions of Use
1. The altitude does not exceed 3000 meters.
2. The temperature of the surrounding medium is not more than +40℃. not lower than -30℃.
3. No explosion dangerous pollution, chemical corrosive gas, and violent vibration place.
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High Voltage Current Limiting Fuse
High-voltage current-limiting fuse is one of the main protection components of electrical equipment, and is widely used in 35KV substation equipment. When the power system fails or encounters bad weather, the generated fault current increases, and the high-voltage current-limiting fuse plays an important protective role as a protector for power equipment.
The improved fuse cover adopts high-strength aluminum alloy material, and the waterproof adopts imported sealing ring. Using a quick and convenient spring-pressed hair, the end is pressurized, making the diversion and waterproof performance better than the old fuse.
