Transformer for connection of arc suppression coils

摘要

Use: Useful relates to electrical engineering and is intended for use in electric networks with neutral earthed through arc suppression coil, for connection of the quenching reactor, namely a device for automatic compensation of capacitive earth fault current using the phase or amplitude principle configuration quenching reactor. Summary of the utility model: a transformer for connecting comprises quenching the reactor (1) mgnitoprovod 1, 2 and higher winding 3 lower voltage, high voltage switch 4. The three-phase transformer formed, two-winding, the primary winding 2 (phases A, B, C) are connected a star with the derived zero, and the secondary winding 3 are connected into a triangle (Figure 2). Phase B primary winding provided with taps, adapted to stepwise reduction from the nominal phase voltage in the following sequence: (-0.625%) (1.25%) (-2.5%) (-5%). The achieved technical result consists in increasing the offset voltage stability and, consequently, reduce the likelihood of breakdown of the insulation of high-voltage cables, reducing losses in the electrical circuits. 1 n.p.f .; 4 ill.