TFS 2100 E is a fault location system (FLS) for power lines. The method is based on recording traveling waves of current or voltage that occur during line short circuits. The method based on recording traveling waves is the most accurate and allows you to determine the location of damage with an accuracy of approximately 150-300 m.

For WMD it is necessary to use two systems installed at both ends of the line. The system is connected to the secondary circuits of the CT or VT and provides continuous monitoring of the line. Both semi-sets are synchronized with great precision in time, via GPS or fiber optic communication. Thus, by recording the different times of arrival of the traveling wave at the ends of the line, and knowing the speed of propagation of the wave in the line, it becomes possible to determine the location of the damage with very high accuracy. The accuracy of measuring the location of the fault does not depend on the length of the line.

The software can be installed on any computer with an Internet connection or local network. In this way, authorized personnel can obtain information about the tests directly at their workplace.
The system is installed in a 19'' format rack. Connection to CT or VT circuits can be made either directly or using high-frequency detachable current transformers.

Functional Features

• The most accurate system for locating overhead line faults
• Greater measurement accuracy: typical accuracy 300 m.
• The result is not affected by short-circuit resistance
• The system is suitable for all types of lines: direct and alternating voltage
• Automatic calculation of the distance to the damage site
• Unlimited number of lines for monitoring
• The system allows you to increase the speed of line restoration after damage
• Possibility of installation without disconnecting line equipment and ease of setup
• Software for automatic calculation and analysis
• Possibility of using Ethernet TCP/IP interfaces, Modem and connection to both ends of the line

WMD methods of the TFS 2100 E system based on traveling wave control

Method D – installation of two half-sets on both sides of the line, with control of the difference in wave arrival.

Method A – control of the line with one half-set on one side (less accurate, semi-automatic) using the principle of reflection of a traveling wave from the end of the line and the location of the fault, where the source of the wave is a short circuit.

Method E - control of a line with one half-set on one side (less accurate, semi-automatic) using the principle of reflection of a traveling wave from the end of the line and the location of the fault, where the source of the wave is the switching on of a high-voltage switch on the damaged line.

Method W – control using multiple systems installed on different lines of the same power system.

In consultation with a technical specialist!