The automatic adjustment of the arc suppression coil

摘要

Field of use relates to electrical engineering, namely to a device for compensation of capacitive currents in electrical networks 6-35 kV.; Summary of the utility model: the automatic adjustment of static plunger and arc suppression coils (DGR) in networks with isolated neutral, as well as in networks with a combined ground mode. Technical result of the invention is to improve the tuning accuracy and reliability of measurement results throughout the range of adjustment of the GDR. Said technical result is achieved in that for the excitation of damped oscillations in the circuit the zero sequence network use a series of alternating polarity pulses digitize input analog values ​​of the perturbation signals using the estimated value of the frequency Fd sampling, separation of the free component produces a special algorithm in adder-accumulator is determined value detuning and output its value beyond, setpoint, affect the change of inductive current plunger Foot or static DGR. The method may be used in the devices to work in networks with a low Q and a parallel connection of GDR.