Copyright © 2014 mat - Maschinen- und Anlagentechnik Dr. Becker GmbH - Last Update: 09.02.2018
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 occurs. Through an accurate earth fault compensation or detuning control and a modern Earth Fault Detection System such as the location on the basis of Admittance-Method a highest level of personal safety and device security is guaranteed. Arc Suppression Coils 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 program. The following table shows only the most important series types represent:  arc suppression coil mode CD/SD2h Arc Suppression Coils  Dimensions and Weights  Duty Type CD/SD2h                                              
Duty  Type   Power   Length   Width   Hight   Centre   Oil   Total       kVAr   mm   mm   mm   mm   kg   kg   CD/SD   1250/1600   1950   1650   2450   820   1250   4200   SD   1600   1550   1100   2300   820   1080   3400   CD/SD   1600/2000   1950   1650   2450   820   1250   4200   SD   2000   1550   1100   2300   820   1070   3400   CD/SD   2000/2500   2100   1900   2500   1070   1800   5750   SD   2500   1650   1300   2500   1070   1530   4650   CD/SD   2500/3150   2100   1900   2500   1070   1770   6050   SD   3150   1650   1300   2500   1070   1750   4915   CD/SD   3150/4000   2100   3100   2650   1270   2180   8070   SD   4000   1950   1750   2650   1270   1960   6800   CD/SD   4000/5000   2100   3250   2650   1270   2200   8380   SD   5000   1950   1750   2650   1270   1940   6950   CD/SD   5000/6300   2050   3350   2850   1505   2680   10400   SD   6300   2050   1850   2850   1505   2450   8700   CD/SD   6300/8000   2150   3350   2850   1505   2850   11050   SD   8000   2050   1850   2850   1505   2400   8950
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