Thyristors power regulator AST

electronicpower factorswitching

Static power factor correction capacitor The reactive power regulator has a switching time of the banks extremely quicker than the standard regulator. The device for switching the capacitors banks is electronic, controlled by thyristors, with the capability of switching the capacitors at zero crossing. Maximum speed in switching the capacitors banks (the total power is switched in less than one second). No current peak on the capacitors at the time of switching of the banks. No voltage peak on the capacitors at the time of switching off the banks. Elimination of problems related to contactor contact wear. Specifications - Rated voltage: 400Vac - Rated frequency: 50Hz (60Hz on request) - Voltage of auxiliary circuits: 110Vac - Working temperature range: -5°C/+50°C - Cubicle: 20/10mm sheet steel, protected against corrosion by a phosphating treatment. Epoxy powder painted, RAL 7035 color (other colors on request) External Protection Degree: IP30 - - Locking system: by key - Ventilation: Forced - Isolating switch: Three-pole with door interlocking device - Supplying: Entry of the cable from the bottom - Wiring: By N07VK CEI 20-22 flame retardant cables. Auxiliary circuits are identified as in the electrical drawing - Fuses: Each capacitor banks is protected by a set of three fuses (NH00 type) with high breaking capacity. Also the auxiliary circuits are protected by fuses. - Activation: Thyristors zero-crossing static devices