GTCA28-401L-P05

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Gas discharge tube arresters (GDT), also referred to as surge arresters, are commonly used in medium and high voltage applications to protect electrical and electronic systems from lightning and other forms of overvoltage surges or transients. This type of arrester works by providing a very low impedance path for overvoltage discharge. The GDT model GTCA28-401L-P05 is a four-electrode gas discharge tube arrester that is designed to provide low-energy operation, maximum surge capability, and extremely low leakage current performance. The GTCA28-401L-P05 is designed for a wide range of application fields, from residential and industrial to overhead, underground and even marine applications. It is suitable for use in medium-voltage (up to 36kV) systems, such as substation switchgear, circuit breaker, and cable protection systems. It is also suitable for use in high-voltage (up to 66kV) systems, such as overhead power lines, cable lines, and medium-voltage capacitor bank systems. This arrester’s surge ratings and dynamic ratings are well suited to addressing transients and surges caused by direct lightning and other overvoltage conditions. The working principle of the GTCA28-401L-P05 is based on the gasfilled gap technology. This arrester is also characterized by an optimized four-electrode design. When the arrester is subjected to an overvoltage, the gasfilled gap between the two electrodes is broken down. This breakdown is due to an ionization of the gas, creating a high-current flow between the electrodes. The arrester thus absorbs and dissipates the excess energy, thus protecting the connected device(s). The GTCA28-401L-P05 also utilizes a specialized dielectric coating and silicon sealant that is designed to provide superior insulation and moisture resistance over temperature ranges of -20°C to +85°C. This protects the arrester from corroding and ensures that it remains safe and reliable with little maintenance required.The GTCA28-401L-P05 is designed with an internal silicon seal which is intended to improve the arrester’s performance and flashover voltage. This silicon seal also prevents the arrester from discharging under normal operating conditions, thus significantly increasing its lifetime. In addition, the arrester is also designed for low power consumption, which further reduces its operating costs and ensures that it does not take up too much energy from the system.The GTCA28-401L-P05 also features an overvoltage indicator that allows the arrester to automatically reset after the overvoltage has been cleared. This helps prevent premature failure due to the arrester resetting when it is not necessary. Furthermore, the arrester is designed with an overcurrent indicator that provides warning signals when the current is beyond the rated values. This helps prevent any damage caused by an overvoltage.In conclusion, the GTCA28-401L-P05 is an effective and reliable solution for medium and high voltage applications. Its four-electrode design provides excellent protection against lightning and other overvoltage incidents. Its low power consumption and maintenance-free construction make it a cost-effective and reliable solution for protecting electrical and electronic systems. Furthermore, its overvoltage indicators and overcurrent indicator provide valuable protection, making the GTCA28-401L-P05 a great choice for a wide range of applications.

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