SL1024B230C

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Gas Discharge Tube Arresters (GDT) are protection devices used to protect sensitive electrical and electronic equipment from voltage surges caused by lightning, utility switching, or other transient overvoltage events. SL1024B230C is a type of GDT and its application field and working principle is discussed in this article.

SL1024B230C is used for mid-lightning current and line primary lightning current protection. Its discharge capacity is 20kA-10/350 μs. It is suitable for line with voltage grade from 0.23kV~ 70kV, and power frequency AC voltage test from 50Hz, 60Hz, 48Hz to 52Hz. The front/back of the arrester equip with silicon rubber membrane weathersheds for waterproof. It is mainly used in commercial buildings, communication systems, etc. It is widely used in airports, railway and urban railway systems, etc.

SL1024B230C consists of non-linear resistive element and several additional passive elements. It works in two stages. In the first stage there is a “turn on” process which means that it senses the voltage of the overvoltage and the current gradually increases until it reaches a “tripping voltage” and then “turns on”. This is an “automatic turn-on” operation which means that it will not turn on until it reaches this predetermined voltage. In the second stage there is a “steady-state protection” stage where the SL1024B230C monitors and limits the amount of overvoltage that is allowed on the protected line. This “steady-state protection” stage is also the “turn-off” stage. SL1024B230C has a unique gas-filled discharge tube which contains a living agent to help reduce the voltage stress on the protected system.

SL1024B230C is designed with superior arc quenching ability, low leakage current, high discharge capacity, and rapid response time. In addition, it is designed for optimal performance in any condition, from low voltage to high voltage conditions. The “automatic turn-on” feature ensures protection of the equipment against sudden increases in voltage, such as from lightning strikes. The gas-filled discharge tube helps reduce the transient overvoltage before it reaches the protected equipment. The primary arc quenching mechanism is based on thermionic emission and avalanche breakdown, which provides fast and efficient protection. Since its components have a long service life, there are fewer chances of arrester failure and the device can be used for a long period of time.

SL1024B230C is an advanced technology arrester that provides comprehensive protection for transformers, distribution systems, communication systems, and other sensitive equipment from lightning strikes and other transient overvoltages. It is designed to be robust and reliable, and its components are able to withstand extreme conditions. It’s superior arc quenching ability, low leakage current, high discharge capacity, and fast response time make it ideal for a variety of applications.

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