SL1021B400RS

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Gas Discharge Tube Arresters (GDT) are used to protect electrical circuits from lightning surges and other transient overvoltage fluctuations. One common type of GDT is the SL1021B400RS. This device comes as a single, three-phase or three-phase plus neutral system and offers a range of rated voltages from 0.9kV to 17.5kV.

The SL1021B400RS is an ideal choice for the protection of medium to high voltage systems. This device is designed for applications in medium to high voltage transmission lines, substations, and distribution systems. It provides superior lightning surge protection for these types of systems. It also offers superior protection against other electrical transients such as switching surges, power cross surges, and ground potential rise.

The working principle of the SL1021B400RS is based on the theory of gas discharge tubes. When a lightning surge or other transient overvoltage occurs, electrons are emitted from the electrodes of the gas discharge tube. The electrons penetrate the gas-filled tube and ionize the gas, creating a conductive path between the electrodes. This results in a reduction of the overvoltage, which is then safely diverted to ground.

The SL1021B400RS also utilizes a combination of varistors to further reduce any overvoltage. Varistors are voltage-dependent resistors that have high resistance when the voltage is low, and low resistance when the voltage is high. When the voltage exceeds the rated level of the SL1021B400RS, the varistor acts as a shunt, diverting any excess voltage to ground. This protects the system from further damage from any transient overvoltage.

The SL1021B400RS also features a positive temperature coefficient that provides additional protection in case of overloads. The positive temperature coefficient ensures that when the temperature of the device increases, its resistance also increases, reducing the flow of electricity and protecting it from further damage.

The SL1021B400RS is a reliable, cost-effective solution for medium to high voltage applications. Its combination of gas discharge tube technology and varistors provides a highly effective protection against transient overvoltage, while its positive temperature coefficient ensures that the device will not be damaged by an overload. This device is a great choice for medium to high voltage protection, and is well suited for use in transmission lines, substations, and distribution systems.

The specific data is subject to PDF, and the above content is for reference