Description: Newton+ Automatic Pf Correction Relay is suitable for true RMS measurement. It is a compact, cost effective APFC relay, which is packed with features and is extremely reliable. The relay has in-built PF mode (FIFO), binary (ascending steps control) as well as VAR (random switching) mode of operation to enable successful maintenance of PF under all load conditions. It has a bright 16-digit LC display for ease of reading and programming. It has built display for volts, amps and PF; and does need to set % kVAR and C/K ratio. The PF is measured for any one phase from the voltage sensed between phase, neutral and current in the same phase, using digital signal processing (DSP) methods. The technical specifications includes voltage supply of 230V AC, 50 Hz nominal between phase and neutral; supply voltage range - 80 to 270V AC; current - 5 A from CT secondary; output switching capacity - 5 A @ 230 V AC resistive load; number of stages - standard 6 stages; target PF setting - from 0.8 (Lag) to unity in PF mode; and 0.8 (Lead) in VAR mode; reconnection time delay - settable at site, from 5 seconds to 120 seconds; minimum current - 5% of rated CT primary in PF mode, and 1.0% in case of VAR mode; mounting - flush mounted using clamps; size - 96 x 96 mm bezel, 92 x 92 mm cutout size, depth of installation - 95 mm including terminals.
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