SL1021B150RS

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Gas Discharge Tube Arresters (GDT) are a type of energy-dissipating device used in electrical power systems. They provide protection against transient over-voltages, typically due to lightning, power line switching, short circuits or other power system related faults. GDTs are commonly cylindrical tubes filled with a low-pressure gas, most often nitrogen. Inside the tube is a small range of electrodes which creates an electrical field.

SL1021B150RS is an example of such GDTs, used for the protection of electrical power systems. It is designed for use in area distribution systems and medium voltage motor control centers (MVCC). It is rated for 10kA 8/20μs impulses and can be used for outdoor locations with an ambient temperature range of -40°C to +60°C.

The working principle of the SL1021B150RS is fairly simple. When an electrical current passes through the arrester, it creates an electric field inside the GDT. This electric field causes the gas molecules to become charged and moving, and they then collide with the electrodes, creating a spark and dissipating the energy that would otherwise be conducted through the arrester. The spark causes the gas molecules to break down, forming an ionized path which acts as a short-circuit and terminates the transient. The voltage on the GDT is regulated by the amount of voltage across its two terminals. By increasing the voltage, the spark current is increased.

The SL1021B150RS is a type II arrester, meaning it contains a gas tube with two series of electrodes. The first set acts as the primary protection, and the second set acts as a back-up, allowing for over-voltage protection. This type of arrester provides a high level of protection, even at very high impulse climates.

The SL1021B150RS is excellent for applications where surge and transient over-voltage protection is required. Its 10kA 8/20μs rating ensures that it can deal with the most extreme electrical events and provide reliable protection. It is also designed with environmental protection in mind, with a conductor shield and a rugged construction to protect against the elements and harsh weather. It is also designed for easy installation and maintenance, with an easy to use user-interface.

In conclusion, the SL1021B150RS is an excellent choice for protection against transient over-voltages in power systems. It is designed to provide reliable protection against the most extreme electrical events, with an easy to use user-interface for easy installation and maintenance. Its 10kA 8/20μs rating makes it ideal for applications where over-voltage protection is required.

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