2035-60-SM-RP

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) provide an important function in electrical power systems by providing stable electrical performance and over-voltage protection. The 2035-60-SM-RP GDT is a surge arrester specifically designed to meet the stringent requirements of ultra-high voltage (UHV) applications. It has been developed to limit surge voltages on medium and long transmission lines by creating a discharge channel within the arrester, which dissipates the surge energy safely. This article will discuss the application field and working principle of the 2035-60-SM-RP GDT.

Applications

The 2035-60-SM-RP GDT is designed for use in extra-high voltage AC power systems. It is ideal for long transmission lines, where the surge currents are high and line-to-ground over-voltages can occur due to a lightning strike or switching operation. These over-voltages must be safely dissipated in the shortest possible time to prevent damage to transmission equipment. The arrester ensures reliable protection by providing a superior transient energy absorption capability. It also offers protection against over-voltages in the absence of destructive discharge to the ground, since it can withstand very high over-voltages for longer periods of time.

Design & Working Principle

The 2035-60-SM-RP GDT is designed as an ultra-high voltage arrester for power transmission applications. It consists of three main components: the main body, the firing switch and the electrode. The main body consists of an outer casing, a vacuum interrupter, and a spark gap which provides an arc gap for over-voltage protection. The firing switch is a circuit breaker design comprised of a low energy spark gap, a control circuit, and a Zero-Crossing detector.

The main body of the arrester is filled with an insulating gas, usually sulfur hexafluoride (SF6). The air gap allows for air to enter the main body of the GDT upon triggering, helping to lower the pressure of the insulating gas. This allows it to dissipate the surge energy more successfully while providing the necessary protection against high voltage surges.

The 2035-60-SM-RP GDT also has a unique firing switch which works in conjunction with the low energy spark gap. The firing switch senses the momentary over-voltage, and then triggers at the Zero-Crossing voltage to open the gap and reduce the over-voltage. Once the over-voltage level is reduced to a safe level, the air gap closes again to restore the voltage.

The working principle of the 2035-60-SM-RP is based on three factors. First, the GDT provides a physical barrier between the line and ground, preventing short-circuiting. Second, the low energy spark gap provides a highly efficient and controlled discharge of the over-voltage. Finally, the SF6 gas in the main body of the arrester absorbs the energy stored in the spark gap, and dissipates it as a low level of current.

Conclusion

The 2035-60-SM-RP is an effective and reliable surge arrester designed for UHV power systems. It can effectively limit surge voltages on the transmission line and absorb the energy stored in the spark gap in the shortest possible time. This ensures the protection of transmission equipment from damaging over-voltages. The arrester\'s three-part design consisting of a main body, a firing switch, and an electrode provides for an efficient and controlled discharge of the over-voltage, and safe dissipation of the energy stored in the spark gap via the SF6 gas.

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