This document provides information about an Automatic Power Factor Correction (APFC) panel. It describes various non-linear loads that can cause poor power factor and how installing an APFC panel can improve power factor to eliminate penalties and reduce electricity bills by around 25%. The document outlines technical specifications of APFC panels including dimensions, voltage/frequency ratings, temperature range, and safety and control features. It also provides schematic wiring drawings.
This document provides information about an Automatic Power Factor Correction (APFC) panel. It describes various non-linear loads that can cause poor power factor and how installing an APFC panel can improve power factor to eliminate penalties and reduce electricity bills by around 25%. The document outlines technical specifications of APFC panels including dimensions, voltage/frequency ratings, temperature range, and safety and control features. It also provides schematic wiring drawings.
This document provides information about an Automatic Power Factor Correction (APFC) panel. It describes various non-linear loads that can cause poor power factor and how installing an APFC panel can improve power factor to eliminate penalties and reduce electricity bills by around 25%. The document outlines technical specifications of APFC panels including dimensions, voltage/frequency ratings, temperature range, and safety and control features. It also provides schematic wiring drawings.
This document provides information about an Automatic Power Factor Correction (APFC) panel. It describes various non-linear loads that can cause poor power factor and how installing an APFC panel can improve power factor to eliminate penalties and reduce electricity bills by around 25%. The document outlines technical specifications of APFC panels including dimensions, voltage/frequency ratings, temperature range, and safety and control features. It also provides schematic wiring drawings.
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APFC PANEL
(AUTOMATIC POWER FACTOR CORRECTION )
Ver.: 0 Date: 01 January 2003 Page1/2
1 - DESCRIPTION Any non-linear loads like: Non power factor corrected fluorescent and HID lighting fixture ballasts (40-80% p.f.) Arc welders (50-70% pf) Solenoids (20-50% pf) Induction heating equipment (60-90% pf) Small dry-pack transformers (30-95% pf) Induction motors (55-90%) etc. can cause poor power factor. In many areas electricity boards imposes a penalty charge for low power factor (pf). A poor power factor due to an inductive load can be improved by addition of capacitors in shunt. Awareness of necessity of power factor quality is increasing. Enhancing power quality i.e improvement of power factor saves cost and ensures a rapid return on investments.
Installing MAX APFC Panels provides a reliable solution for elimination of penalties and a cost reduction in the electricity bills by approximately 25%. This panel offers designs that are suitable for indoor or outdoor use. They are designed to minimize installation time and cost and offers high reliability, long life and is suitable for operation over a temperature range of -10 C to 50 C. A wide range of ratings with standard devices are available.
2 - TECHNICAL FEATURES Dimensions: (L x W x H) mm 35 70 kVAr 300 kVAr 400 kVAr 800 x 400 x 100 1000 x 800 x 2000 1650 x 800 x 1800 Supply 3 Phase, 4 Wire Rated Voltage 415 V / 440 V Rated frequency 50 Hz. Permissible Over Voltage 1. 1 Vn Permissible Over Current 1.3 line Current Temperature Category 50 C
3 BEST SUITABLE FOR
This APFC panel is best suitable for Installations having thyristorised loads Municipal water pumping schemes Lift irrigation schemes DoT, Railways, CPWD requirement Upto 20% harmonic distortions 50 % over current 20 % over voltages
4 - SAFETY FEATURES HRC fuses back-up protection Safety door interlock to prevent door from being opened while panel is ON Each capacitor is provided with an internal discharge resistor
Panel Inner View
Front View Back View
5 - SALIENT FEATURES User friendly Microprocessor based APFC Relay having following characteristics: o Intelligent control o Menu driven handling o Self-optimizing control capability o Large measuring voltage range o Recall function of recorded values o Four-quadrant operation (e.g. stand by generator) o Powerful alarm output
System parameters displayed System voltage (VAC) Reactive power (kvar) Active power (kW) Frequency THD-V, THD-I Apparent power (kVA) Apparent current (A) Temperature (C) Real-time cos
Current limiting contactors / Thyristors especially designed for capacitor switching Load manager and data logger can also be provided in additional to downloading data Provision for top and bottom cable entry Aesthetically designed dust proof cabinet with powder coating Cooling fan for efficient performance Completely wired and tested in works and supplied with all control and safety devices.
6 - Technical data Automatic power factor correction unit Mechanical structure sheet steel, protected against corrosion by a Phosphating treatment. Structure powder painted, IS631 Siemens grey colour (other colours on request) External Protection Degree: IP45 Wiring Flame retardant cables. Aux. circuits are identified as in the electrical drawing Fuses All capacitors is protected by a set of three fuses with high breaking capacity. Also the auxiliary circuits are protected by fuses. Rated Voltage 415 Vac Frequency 50 Hz. Auxiliary voltage 230 Vac Mains voltage 415 Vac three phase Contactors Each bank of capacitors is controlled by a three-pole contactor. To limit the inrush current peaks, each contactor is provided with insertion resistors. Thyristors Thyristor switching at zero crossing, instantaneous ON & 40 sec delay required for same capacitor to be switched ON again. Capacitors Self-healing Metallized Polypropylene equipped with overpressure safety device and discharge resistor. Filling: biodegradable non toxic dry type, PCB free. Capacitance tolerance: - 5% to + 10%, Dielectric losses: <0.2W/kvar Protection degree External protection rating : IP 45 Power supply Provision for top and bottom cable entry Cooling Exhaust fans Temperature class -10 C to + 50C Power factor controller Friendly user intelligent Microprocessor based APFC Relay Reference Standards IS 13585 (PartI ); 1994