Pure Sine Wave Filter for Cleaning Power Output for Electronics

• Customization: Available
• Application: Power, Electronic, Rectifier, Industry Control
• Phase: Three
• Model NO.: AL-SWF1
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Auto-transformer
• Certification: ISO9001-2000, ISO9001, CE
• Usage: Power Transformer, Industry, power equipment, urban infrastructure
• Frequency Characteristics: Low Frequency
• Shape of Core: EI
• Brand: AL TRANSFO
• Rated Voltage: Support customization
• Rated Current: Support customization
• Capactiy: 600
• Place of Origin: Hefei City, China
• Power: 1.5kw~630KW(customization)
• Frequency: 50/60Hz
• Current: 5A~1500A
• Matching electrical capacity: Support customization
• Insulation grade: F/H
• Rated reactance rate: Support customization
• Transport Package: Wooden Box or Pallet
• Specification: 1pcs/box
• Trademark: AL
• Origin: China
• HS Code: 85043190
• Production Capacity: 20PCS/20days

Product Description

Product Description 
 

Specification

 

1. Motor frequency inverter is a kind of special inverter, generally uses SPWM modulation mode, used to drive special frequency
asynchronous motor, commonly used relatively close distance (motor cable less than 100 meters).
2. When motor cable is too longer (more than 100 meters), the motor will produce high du/dt, which will damage moto insulation,
cause coil breakdown aging, core loss increase, still can cause bearing heating serious, reduce motor life or damage, even can
burned motor in heavily situation. So user must choose sine wave filter to slove this problem.

 

Contructure Feature

AL produces the EM-SWF series sine wave filter adopting trait reactor, having professional filter capacitor and power
resistor, reasonable structure, waveform distortion is small, small loss and low noise characteristics, can match with all brands
frequency inverter and match many sets of machines, such as wind power, oil field, water and electricity, metallurgy, etc.

Electrical Feature

1. To converse SPWM voltage current waveform of frequency inverter to approximate sine wave waveform(For the line load feature,
the COS is greater than 0. 3 and T H D is less than 5%);
2. Protect motor insulation system, reduce bearing current, prolong service life, and reduce motor noise;
3. With general asynchronous motor can replace frequency induction motor use;
4. Effectively restrain the high frequency loss and RF radiation interference, in certain occasions without to use a shielded
cable, lowering the field Cable quirements;
5. Cable between motor and frequency inverter can extend to 500 meters, the longest can reach 3000 meters above;
6. We have 220 V \ 380 V \ 440V\ 690V \ 1140V three phase variable frequency drive system;
7. Suitable motor and inverter power range: 0. 4KW - 1600 KW;
8. Suitable frequency inverter output carrier frequency range: 1.5-16 KHz;
9. Basic frequency range: 0 to 400 Hz (above 50Hz order must tell us when order);
10. Driving load forms: asynchronous motor (After special design can use for EPS \ UPS and the surrounding power supply system);
11. Heat resistant level: F grade (for reactor part);
12. Protection level: IP 20

How does a SineWave filter compare to a dV/dT filter or output line reactor?

• An output reactor will reduce transient voltage overshoot seen by the motor.
• Consider an output reactor if the distance between the VFD and the motor is 100ft to 300ft.
• A dv/dt filter will do a better job than a reactor only at reducing transient voltage overshoot. It mitigates the high frequency components in the range of a few hundred kHz.
•  Consider an dV/dT filter if the distance between the VFD and the motor is 300ft to 1000ft.
• A sinewave filter will eliminate transient voltages seen by the motor and virtually transform the VFD's PWM output voltage to a sine wave. It mitigates both the switching frequency components and high frequency components.
• Consider a sinewave filter if the distance between the VFD and the motor is 1000ft to 15,000ft.

Packaging & Shipping

Application 

Switching power supplies, chargers, alarm system, TV/CRT monitor displays, UPS, VCD/DVD players, audio/visual equipment, OA machines and inverter Typical products .

Used in high-density installation with good shielding quality also used in wave carrier filter, power transformer and Aux-power transformer .

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FAQ

1. Question: Lead time for samples?

    Reply: 10-15 working days.

2. Question: Lead time for mass production?

     Reply: 30 to 40 working days or depending on order quantity.

3. Question: What should provide to make custom  transformer ?

    Reply: Supply drawing is best, or tells us the size, inductance, resistance and etc.

4 . Question : What is payment term ?

    Reply : T/T , Western Union , PayPal or negotiation.