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Low-pass electronic filter SWF Series
passivesine wave

low-pass electronic filter
low-pass electronic filter
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Characteristics

Bandwidth
low-pass
Type
passive
Other characteristics
sine wave
Current

11 A

Voltage

Min.: 0 V

Max.: 500 V

Frequency

Min.: 3 Hz

Max.: 120 Hz

Description

SWF Series Sine Wave Filters convert the PWM output signal of motor drives into a smooth sine wave with low residual; Reduce the resonance phenomenon caused by distributed capacitance and inductance of the long cable(longer than 50 meters); Eliminate the excessive motor voltage caused by high dv/dt, Reduce noise of motor by filter application; Prolong motor life; Protecting the motor insulation; Increase transmission distance; With the application of this filter, normal motor can replace variable frequency motor. Applications: Ventilators,conveyors,Pumps HVAC installations, Compressors Elevators ,Cranes , wind power,UPS,EPS Motor drive with long cable Motor drive with multiple motors in parallel Medium voltage applications(deployed in front of the step-up transformer) Technical Data: Nominal voltage range : 3*380 to 500VAC±10% Motor frequency: 0-120Hz; Switching frequency :2.0kHz -16K HZ; Residual Ripple Voltage:THDv<5% Voltage drop at rated current:≦10%(50HZ); Motor Cable Length:Up to 2000m; Work Model:Continuous for indoor operation Norminal Motor drive input power rating:3.7kw to 630kw; Efficiency:98 to 99%@norminal line voltage and power Overload capability:150% 60S,120% 60min Test Voltage:2240VDC,2s(line/line) 2720VDC,2s(lines/case) Dielectric strength:AC4000V/5mA/60s Insulation resistance:core-winding,≧100MΩ(DC1000V); Climatic Category(IEC60068-1):25/100/21 Protection:IP30(IP40/IP54 upon request),indoor:IP20 Cooling:Internal forced air Load type:typical motor load;standard step-up transformer;other linear load;

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