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Sine Wave Filter (SFR)

Sine Wave Filter are designed to provide a Sine Wave output voltage when driven from Variable Frequency Drives or other types of PWM inverters with switching frequencies from 2kHz to 8kHz.


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Sine Wave Filter (SFR)


Sine Wave Filter are designed to provide a Sine Wave output voltage when driven from Variable Frequency Drives or other types of PWM inverters with switching frequencies from 2kHz to 8kHz.

For Variable Frequency Drive (VFD) applications, Sine Wave Filters eliminate the problem of motor/cable insulation failures, heating, and audible noise. Sine Wave Filters also reduce electromagnetic interference (EMI) by eliminating the high dV/dt associated with inverter output waveforms. Bearing currents are also reduced, especially in larger motors above 50 kW.

Sine Wave Filter (SFR)

The perfect solution for:

• Applications with older motors

• Aggressive environments

• Applications with frequent braking

• 690 V above applications with general purpose motors

• Motor cable length between 350 and 3000 meters


Performance:

Work voltage: 220VAC to 690VAC,

Work current: 15A to 15000A

Rated voltage drop: 8 to 12%.

Harmonic Voltage Distortion when feeding a:

Transformer at full load and at 60Hz: 5% maximum

Motor at full load and at 60Hz: 5% typical


Ratings:

Continuous Current Rating 100% RMS, Intermittent Current Ratings: 150% for 1 minute

Minimum Inverter Switching Frequency: 2kHz

Maximum Inverter Switching Frequency: 8kHz

Nominal Inverter Operating Frequency: 60Hz

Minimum: 0Hz

Maximum with de-rating: 90Hz

Altitude without de-rating: 1000 meters

Maximum Motor Lead Length: 3000M

Maximum ambient temperature: 50° C open filters, 40° C enclosed filters

Insertion Loss: 10% of rated voltage maximum

Audible Noise: Maximum Audible Noise Level at

Two Meters for Standard Configuration: 76dB-A

Output Compatibility/Loading: Conventional 3 phase motors.

Standard step-up transformer with 4% minimum output impedance, "No load" continuous operation


Sine Wave Filter (SFR)


Sine Wave Filter (SFR)

Sine Wave Filter (SFR)