ISA TFS 2100E & TFS 2100

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The Traveling Wave Fault Location System TFS 2100 and TFS 2100E provide accurate fault location solution for transmission and distribution power lines.
Traveling waves are voltage and current surges propagating along the power line, arising from power system disturbances such as fault, switching operations and lightning. The TFS 2100 traveling wave fault locator, determines distance to fault by measuring the time for a surge to travel from fault position to measurement point. The fault distance measurement error is less than ±50m typical regardless of the line length, and free from the influence of factors which affect fault location accuracy using traditional impedance methods.

ISA developed two accurate fault locator systems, TFS 2100 and TFS 2100E.

TFS 2100E – System description
The new ISA TFS 2100E system is the most accurate and easy to install travelling wave fault locator system. The all-in-one solution for the HV network fault location, the system is made of:
. TDU 100E: the device installed at substations.
. TAS 2100E: the software installed into the Master Unit.
It applies to any type of network: AC or DC and thanks to its automatic calculation of the fault distance, fastness as the fault is located in few milliseconds and accuracy, providing the location of the error in less than ± 50m, TFS 2100E minimizes the line outage time.
In addition, the location is performed directly on the network map and the GPS synchronization is embedded into TDU 100E. The TFS 2100E is a fast, easy to set up and non intrusive system, whose communication is performed via internet, modem and/or point to point connection. Also IEC61850-8 interface for the substation connection is available.
The TFS 2100 main characteristics are:
• The all-in-one solution for the HV network fault location.
• Accuracy: location error less than ± 50m (less than one tower).
• Fast: the fault is located in few milliseconds.
• Unaffected by fault resistance.
• The GPS synchronization is embedded into TDU 100E.
• Suitable for all kind of power lines AC and DC.
• Automatic distance to fault calculation.
• The Wide area fault location collects data from the whole network.
• The location is performed directly on the network map.
• Unlimited number of monitored lines.
• Reduce overhead lines outage time.
• Non intrusive installation.
• Easy to set up.
• Master Station software for distance to fault calculation and analysis.
• Connection types available: INTERNET, MODEM and POINT TO POINT.
• Substation connection also via the IEC61850-8 interface.

TFS 2100 – System description
The TFS 2100 consists of Traveling Wave Data Acquisition Unit TDU 100 installed in substations, a Master Station Software deployed in the control center and communication network. Each TDU 100 can monitor up to 4 lines, and therefore two or more TDU 100 units are needed to monitor more than 4 lines in a substation. Each TDU is synchronized by means of a GPS synchronization signal with accuracy of ± 1 µs. In bay level application a TDU 100 is dedicated for one line monitoring and installed near the circuit breaker. When more than one TDU 100 is installed in a substation, a Data Processing Server DPS 100 is used to collect traveling wave data acquisition units and communicate with the Master Station.
The TFS 2100 main characteristics are:
• The accurate overhead transmission and distribution line fault locator.
• Accuracy: ± 50m typical, regardless the line length.
• Time synchronization with accuracy of ± 1 µs.
• Unaffected by fault resistance.
• Suitable for all kind of power lines AC and DC.
• Automatic distance to fault calculation.
• Unlimited number of monitored lines.
• Reduce overhead lines outage time.
• Non intrusive installation.
• Easy to set up.
• Master Station software for distance to fault calculation and analysis.
• Ethernet TCP/IP, Modem and Point to Point connections available.

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