Copyright © 2014 mat - Maschinen- und Anlagentechnik Dr. Becker GmbH - Last Update: 01.06.2018
Arc Suppression Coils
The most common type of star point treatment is the high impedance
inductive grounding because in case of earth fault wiper or permanent
earth fault further operation can be driven without a dark circuit cut-off of
the corresponding network district takes place.
The arc suppression coil with optimum tuning compensates the
capacitive charging current which is flowing through the ground
capacitances of cables or overhead lines.
The Arc Suppression Coil represents in connection with the ground
capacitances a 50 Hz series-resonant circuit. More accurate the tuning
of this resonant circuit, the less residual current at the fault location
Through an accurate earth fault compensation or detuning control and a
modern Earth Fault Detection System such as phase-earthing equipment
a highest level of personal safety and device security is guaranteed.
Of course, we also supply neutral earthing- and grounding transformers
for coupling the Arc Suppression Coils as well as their combinations to
the network. 110kV Arc Suppression Coils are also in our delivery
+49 4532 2021-01
+49 4532 2021-21