SL1011B350C

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Gas Discharge Tube Arresters (GDT) are important devices used in electrical power systems to provide protection against lightning strikes and temporary overvoltage on the power lines. The SL1011B350C GDT is a multi-stage, single-phase GDT that offers protection to medium voltage AC power systems. It provides a wide range of performance features with up to 40 kV rated voltage and 40 kA rated discharge current.

The SL1011B350C GDT is designed to protect a variety of application fields. It is suitable for a variety of power systems such as overhead lines, ungrounded systems, and transformer substations. Additionally, it is suitable for an extensive range of medium and low voltage AC power supplies, e.g. professional or industrial power systems, as well as for electric traction systems. It can also be used to provide line-to-ground, neutral-point, and line-to-neutrale protections.

The working principle of the SL1011B350C GDT is to utilize an external surge, such as a lightning strike or a surge current generated by a nearby fault, to trigger an internal avalanche breakdown process. This generates a short-lived spark that safely passes through the GDT and diverts the surge energy away from the power supply system or protected equipment. The surge current is limited by the GDT, allowing the system or equipment to remain undamaged by the surge event.

The SL1011B350C GDT is a compact and robust device with an improved mechanical design. It is manufactured with materials and components of high quality and certified according to IEC 61041. The high performance of the device is achieved by adopting assembly techniques and maintaining process control parameters. In addition, the device is provided with sleep mode, allowing continuous operation while minimizing power consumption and lowering total operating costs.

The GDT is further protected by a three-stage metal oxide varistor (MOV) located inside the housing. This contributes to limits the voltage and current passing through the GDT. The MOV consists of multiple layers of high-performance parts, providing fast reaction time, low resistance, and high breakdown voltage. Furthermore, the SL1011B350C GDT can be used in different temperature and humidity conditions, guaranteeing reliable operation and maintaining superior performance over time.

The SL1011B350C GDT provides superior protection for electrical power systems. It is a well-designed and highly reliable GDT, offering a wide range of features for a diverse and flexible array of applications. In addition, it presents a cost-effective solution for the protection of medium and low voltage electrical power systems from lightning and surge events.

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