Set of turn-adjusted arc suppression coil

According to the minimum residual current value or detuning degree preset, the gear position of the arc suppression coil should be stopped is judged, and the controller controls the on-load voltage tap joint to adjust it to the current level.

The required compensation gear, after the occurrence of grounding fault, the residual current at the fault point can be limited to a set range, to play an effective arc extinguishing, to ensure the safety of the power supply system.

• The compensation and adjustment mode of the complete set of turn-type arc-suppression coil is pre-regulation, that is, before the single-phase grounding, the arc-suppression coil has been adjusted to a better compensation state according to the system grid capacitive current, and its grounding compensation response time is the time of SCR short damping resistance, the response speed is fast, and the compensation effect is good.

• The structure of iron core and coil has the advantages of long service life, non-linear harmonic interference, no noise, large capacity, simple structure, reliable operation, rich operation experience and large usage.

• The device can be equipped with small current grounding line selection function, and the unique active power method, the standard comprehensive line selection method, the parallel middle resistance line selection method can be used in the grounding line selection, especially the parallel middle resistance line selection method, which is an effective and accurate line selection method at present. The accuracy of grounding selection is greatly improved.