CG31.5LTR

Series:	CG3
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	1500V
Impulse Discharge Current (8/20µs):	5000A (5kA)
Tolerance:	--
Number of Poles:	2
Fail Short:	No
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder

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Introduction

Gas Discharge Tube Arresters (GDT) are devices which protect electrical systems from various lightning-induced transient phenomena. Specifically, CG31.5LTR GDTs are based on gas-filled tubes of varying sizes and configurations to protect transmission lines from both direct and indirect lightning strikes. This article will focus on the application fields and working principles of the CG31.5LTR GDT.

Application Field

The CG31.5LTR GDT is designed for use with 35 kV AC transmission lines. Specifically, the GDT can be used to protect high voltage overhead lines from direct and indirect lightning strikes. The GDT\'s ability to withstand lightning surges makes it ideal for installations located in areas prone to lightning. In addition, the GDT can also be used to protect other transmission equipment such as transformers. The GDT\'s ability to eliminate the need for external lightning protection systems makes it a cost effective solution for transmission line protection.

Working Principle

The CG31.5LTR GDT works by creating a spark gap between two electrodes. When a lightning strike or other transient voltage is detected, the spark gap is triggered and the arc between the electrodes is extinguished. This causes the electric current to be diverted from the transmission line and dissipated into the ground, thus protecting the line from damage. In addition, the GDT also provides a path for any residual static charges to be diverted to the ground and dissipated, thus preventing static buildup. The CG31.5LTR GDT is designed with two electrodes separated by a small gap. The electrodes are filled with a special non-flammable, high-pressure gas. When a lightning strike or other transient voltage is detected, the spark gap between the electrodes is triggered and the arc between the electrodes is extinguished. The gas between the electrodes is highly conductive and channels the electric current away from the transmission line, then onto the ground.

Conclusion

In conclusion, CG31.5LTR GDTs are an effective and cost-effective solution for protecting 35 kV AC transmission lines from both direct and indirect lightning strikes. The principle behind the GDT is simple yet effective, providing a safe and reliable path for electric current to be diverted from the transmission line and dissipated into the ground. In addition, the GDT also provides a path for any static charges to be diverted to the ground and dissipated. This helps to ensure the safety of both the transmission line and all personnel working near it.

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