The Traveling Wave Fault Location System
TFS 2100 provides 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 ±150 typical regardless of the line
length, and free from the influence of
factors which affect fault location
accuracy using traditional impedance
methods.
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.
