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Automatic Power Factor Correction Equipment PFM/R 180 kVAr - 400 Vac Technical Data MAINS Rev.01 REGULATION and CONTROL Rated Voltage 400 Vac ± 10% - 50 Hz Harmonic overload in the networkTHDI < 10%, resonance not allowed (fr>14) (*) Working temperature -10°C / 50°C (*) fr: frequence of resonance of the network (fr= power of short circuit / power of PF correction ) CIRCUIT Cables entry feithere top. Three-pole isolating switch with door interlooking device. Fuse protected Aux circuit 110 V, supplied via an internal single-phase trasformer. Wiring by N07VK cables. CUBICLE Sheet steel, protected against corrosion by phosphate treatement. Epoxy powder painted RAL7035 colour. External Protection Degree (closed door) IP30. Internal Protection Degree (open door) IP2X on the parts under voltage. Forced ventilation. RegulatIon of PFC using varmetric measurement by means of a C.T. (secondary 5A). LED Display of: Power Factor - Voltage - Current ΔkVAr - Weekly Power Factor - Overload % Temperature inside cabinet - Set Power Factor. Power Factor Setting: 0,80 lag ÷ 0,80 lead Segnalling by a led of: Power on - Inductive Load Capacitive Load - Banks connected - Alarm Not affected by micro breackdown lasting less than 30 ms Adjustable switching of the banks between 5÷240 seconds True RMS measurement of Voltage and Current Alarm contact, voltage free Allarm for max harmonic overload 50% CAPACITORS Capacitors VRC 440 Vac Self-healing metallized polypropylene single-phase capacitors, equipped with overpressure safety device and discharge resistor. PCB free. Delta connection. Capacitance tolerance: -5%+10% Dielectric losses: <0,3 W/kvar Temperature class: -25/D(55°C) REFRENCE STANDARDS CONTACTORS Each bank of capacitors is controller by a special three-pole contactor. To limit the inrush current peaks, each contactor is provided with insertion resistors. Coils of the contactors at 110 Vac 50/60 Hz. Each bank of capacitors is protected by a set of three fuses with high breaking capacity. L.V. 73/23 (93/68) EEC Directive Capacitors: CEI EN 60831-1/2 Equipment: CEI EN 61439-1, CEI EN 61921-1 Power at 400 Vac / 50 Hz 180 kvar Banks 15 - 30 - 60 - 75 kvar Steps 12 x 15 kvar Isolating Switch 400 A Regulator PFC7 Rated Current 259 A Dimensions W x D x H 420 x 380 x 1140 mm Weight 60 kgs ITALFARAD S.p.A. Via IV Novembre 1 Minerbio (Bologna) Italy Tel. +39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web: www.italfarad.com