C-PF Automatic Power Factor Correction Systems Trainer Educational Equipment Electrical Engineering Lab Equipment
This panel is designed to test industrial systems with electronic devices for control of power factor correction in low-voltage power consuming devices (voltage of 400 V). TECHNICAL SPECIFICATIONS: • Painted metallic framework with fore panel of insulatingmaterial • Quick connections via safety leads and terminals (Ø 4 mm) • 1 automatic microprocessor controller of power factor, withrated voltage of 380-415 V – 50-60 Hz - ammeter input with forward current up to 5 A (sensitivityrange 0, 125 … 6 A) - setting power factor: 0.8 ind … 0.8 cap., reconnection time:5 … 240 s - sensitivity range: 5…600 s/step - 5 relay outputs with contacts of 5 A – 250 Vac - setting parameters manually from display-assisted keyboard • 2 multi-function instruments; auxiliary power supply 115-230V; LCD display, 128x80 pixel - measurements of voltages, currents, active, reactive andapparent powers, and power factor in single-phase andthree-phase systems - accuracy rating for currents and voltages: ± 1% - measuring range: 5 A – 850 V max. • 1 four-pole rotary switch of operation – 16 A – 400 V • 1 set of three fuse holders with gl-type fuses 10.3x38 of 6 A • 1 pair of fuse holders with gl-type fuses 10.3x38 of 2 A • 1 fuse holder with gl-type fuse 10.3x38 of 4 A • 1 noise suppression fi lter for three-phase line with neutralconductors – Vn 440 V; In 10 A; inductance of 0.4 mH, currentcarrying capacity of 0.1 µF • 3 three-pole contactors for power factor correction – Ith(AC1) 25 A (7.5 kvar at 400 V) with transient limiting devicesat the connection, excitation of 24 Vac – 50-60 Hz • 1 single-phase transformer with primary winding of 230-400V and secondary winding of 24 V, power of 72 VA • 1 battery of three-phase capacitors of 450 V~ with selectionswitch between 2 and 4 µF and relevant discharging resistorsof 100 kΩ - 5 W • 1 battery of three-phase capacitors of 450 V~ with selectionswitch between 4 and 8 µF and relevant discharging resistorsof 50 kΩ - 10 W • 1 battery of three-phase capacitors of 450 V~ with selectionswitch among 4 8, and 16 µF and relevant dischargingresistors of 50 kΩ - 10 W All batteries of capacitors can be connected in single-phase orthree-phase star-delta confi guration; they enable to assembleautomatic power factor correction systems up to 3 equalsteps (4+4+4 µF), up to 3 steps (one double of the other, of 2,4, 8 µF, or of 4, 8, 16 µF); connecting the various batteries inparallel will lead to further combinations. Dimensions: 805 x 405 x 100 mm Net weight: 25 kg Supply with THEORETICAL – EXPERIMENTAL HANDBOOK
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