Specifications : Benefits : Harmonic Filter for VFD Introduction : Most of the mentioned filtering techniques have common draw back of higher cost compared to Passive Filtering techniques. Consequently, the harmonic filtering techniques to a large extent are still the most commonly used techniques for current harmonics mitigation of 6-pulse front-end diode rectifier application. We have developed an efficient Passive Filter, which can suit many such similar loads. Since all filter components are passive they are rugged, maintenance free, reliable and low cost. Moreover, the filter implementation procedure is relatively easy. With simple structure, our Passive Filters have been extensively used for harmonic VFD mitigation. No involvement of electronic circuits, hardware and complicated control algorithms. Hence, our Passive Harmonic Filters are relatively inexpensive means for eliminating current harmonics distortion and improving the system power factor. Because of these two in one improvement our broad band filters usually have edge over the other effective filtering methods. Helps meet -519 requirements IEEE Gurantees i performance of 8% Max at 50% load, 5% THD Max at full load Meets the voltage and current distortion limits of - IEEE 519 Saves energy by eliminating the wasted energy associated with harmonics, therefore reducing the true RMS KVAdemanded from your power source. Suitable for speed controllers or inverters Reduces energy costs Increases equipment reliability by absorbing transients and voltage surges Increases equipments life by reducing heat associated with harmonic currents Improves power factor Reduces -V to meet power quality standards. THD Technology Passive Broad Resonant Type 3P 3W Output Load Type 6 Pulse Variable Rectified Supply Voltage 415V ± 10%, 3 Phase AC Frequency 50Hz ± 1Hz I/p Voltage Unbalance 1% Max Max Source Impedance 6% Min Source Impedance 1.5% Duty Continuous OperatingAmbient Temp. -20 to +50 O O C C Overload 150% for 1-minute duration with 10% output voltage reduction of nominal voltage Total Current harmonic <9% at 30% Load distortion @ -V <3% <8% at 50-60% Load THD <8% at 60-90% Load <5% at 90-100% Load Protection 20 IP Design Features : Uses fewer capacitors while maintaining 98% efficiency. More consistent power factor across the load range. Improves C/L ratio, which decreases potential resonance. Lowers capacitance resulting in less voltage rise at no load, at PCC (Point of Common Coupling) and on the DC Bus. Total Current Harmonic Distortion Percent Load 0 1 2 3 4 5 6 7 8 9 10 11 12 0 10 20 30 40 50 60 70 80 90 100 THDi % Models for VFD ratings : -11-415-3P3W - 11 NECPL KW -15-415-3P3W - 15 NECPL KW -18.5-415-3P3W - 18.5 NECPL KW -22-415-3P3W - 22 NECPL KW -30-415-3P3W - 30 NECPL KW ** Other ratings on request -110-415-3P3W - 110 NECPL KW -132-415-3P3W - 132 NECPL KW -160-415-3P3W - 160 NECPL KW -185-415-3P3W - 185 NECPL KW -200-415-3P3W - 200 NECPL KW -37-415-3P3W - 37 NECPL KW -45-415-3P3W - 45 NECPL KW -55-415-3P3W - 55 NECPL KW -75-415-3P3W - 75 NECPL KW -90-415-3P3W - 90 NECPL KW Powernac Series Harmonic Filter POWERNAC C-135, Hos. Complex, Phase-II Extn., Noida-201305 (UP) INDIA Tel.: 0120-4221631 to 33 Fax: 0120-4221635 Email : [email protected] Web : www.naacenergy.com
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Specifications : Benefits :
Harmonic Filter for VFD
Introduction :
Most of the mentioned filtering techniques have common draw back of higher costcompared to Passive Filtering techniques. Consequently, the harmonic filteringtechniques to a large extent are still the most commonly used techniques for currentharmonics mitigation of 6-pulse front-end diode rectifier application.
We have developed an efficient Passive Filter, which can suit many such similar loads.Since all filter components are passive they are rugged, maintenance free, reliable andlow cost. Moreover, the filter implementation procedure is relatively easy.
With simple structure, our Passive Filters have been extensively used for harmonicVFDmitigation. No involvement of electronic circuits, hardware and complicated controlalgorithms. Hence, our Passive Harmonic Filters are relatively inexpensive means foreliminating current harmonics distortion and improving the system power factor. Becauseof these two in one improvement our broad band filters usually have edge over the othereffective filtering methods.
� Helps meet -519 requirementsIEEE
� Gurantees i performance of 8% Max at 50% load, 5%THDMax at full load
� Meets the voltage and current distortion limits of -IEEE519
� Saves energy by eliminating the wasted energyassociated with harmonics, therefore reducing the trueRMS KVAdemanded from your power source.
� Suitable for speed controllers or inverters
� Reduces energy costs
� Increases equipment reliability by absorbing transientsand voltage surges
� Increases equipments life by reducing heat associatedwith harmonic currents
� Improves power factor
� Reduces -V to meet power quality standards.THD
Technology Passive Broad Resonant
Type 3P 3W
Output Load Type 6 Pulse Variable Rectified
Supply Voltage 415V ± 10%, 3 PhaseAC
Frequency 50Hz ± 1Hz
I/p Voltage Unbalance 1% Max
Max Source Impedance 6%
Min Source Impedance 1.5%
Duty Continuous
OperatingAmbient Temp. -20 to +50O OC C
Overload 150% for 1-minute duration with
10% output voltage reduction
of nominal voltage
Total Current harmonic <9% at 30% Load
distortion @ -V <3% <8% at 50-60% LoadTHD
<8% at 60-90% Load
<5% at 90-100% Load
Protection 20IP
Design Features :� Uses fewer capacitors while maintaining 98% efficiency.
� More consistent power factor across the load range.
� Improves C/L ratio, which decreases potential resonance.
� Lowers capacitance resulting in less voltage rise at no load, atPCC (Point of Common Coupling) and on the DC Bus.
Total Current Harmonic Distortion
Percent Load
01
23
456
78
910
1 112
0 10 20 30 40 50 60 70 80 90 100
TH
Di
%
Models for VFD ratings :� -11-415-3P3W - 11NECPL KW
� -15-415-3P3W - 15NECPL KW
� -18.5-415-3P3W - 18.5NECPL KW
� -22-415-3P3W - 22NECPL KW
� -30-415-3P3W - 30NECPL KW
** Other ratings on request
� -110-415-3P3W - 110NECPL KW
� -132-415-3P3W - 132NECPL KW
� -160-415-3P3W - 160NECPL KW
� -185-415-3P3W - 185NECPL KW
� -200-415-3P3W - 200NECPL KW
� -37-415-3P3W - 37NECPL KW
� -45-415-3P3W - 45NECPL KW
� -55-415-3P3W - 55NECPL KW
� -75-415-3P3W - 75NECPL KW
� -90-415-3P3W - 90NECPL KW
PowernacSeries Harmonic Filter
POWERNAC
C-135, Hos. Complex, Phase-II Extn., Noida-201305 (UP) INDIATel.: 0120-4221631 to 33 Fax: 0120-4221635Email : [email protected] : www.naacenergy.com
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