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Our power sine wave filter successfully passed the test


2021-02-04

The power sine wave filter developed by our company has successfully passed the test, which can completely replace the similar products imported from abroad, and the price is reduced by half. It has been put into field use.

The relevant technical documents are as follows:

The sine wave filter is used to improve the power quality. The LC filter circuit can effectively filter the high-order harmonics generated by the inverter itself. At the same time, due to its relatively large inductance, it can also effectively extend the distance between the inverter and the electromechanical system to prevent sudden occurrences. Current and voltage damage to equipment.

1. Test voltage: three-phase 380VAC, 50HZ.

2. Installation method: open installation on the panel, or installation in a standard power distribution cabinet.

3. Applications: submersible pumps, low-voltage drives to supply power to medium-voltage motors, HVAC equipment, wind generators, places where the original output voltage waveform and the distance between the motor and the inverter reach 15,000 feet, mixed loads, etc.

4. Harmonic test:

(1) The 5th harmonic content of the test process: Min = 0.00%, Max = 4.83%;

(2) The 7th harmonic content of the test process: Min = 0.00%, Max = 4.03%;

(3) The 11th harmonic content of the test process: Min = 0.00%, Max = 3.83%.

5. Carrier frequency test:

(1) Minimum carrier frequency: 1kHz

(2) Maximum carrier frequency: 12kHz

6. Overload capacity test: 150%RMS for 1 minute, 200%RMS for 10 seconds.

7. Noise test: The maximum noise at a distance of 2 meters from the filter in the standard configuration-56dB-A.

8. Voltage and current waveform: the voltage and current waveform in front of the sine wave filter.

The power sine wave filter developed by our company has successfully passed the test, which can completely replace the similar products imported from abroad, and the price is reduced by half. It has been put into field use.

The relevant technical documents are as follows:

The sine wave filter is used to improve the power quality. The LC filter circuit can effectively filter the high-order harmonics generated by the inverter itself. At the same time, due to its relatively large inductance, it can also effectively extend the distance between the inverter and the electromechanical system to prevent sudden occurrences. Current and voltage damage to equipment.

1. Test voltage: three-phase 380VAC, 50HZ.

2. Installation method: open installation on the panel, or installation in a standard power distribution cabinet.

3. Applications: submersible pumps, low-voltage drives to supply power to medium-voltage motors, HVAC equipment, wind generators, places where the original output voltage waveform and the distance between the motor and the inverter reach 15,000 feet, mixed loads, etc.

4. Harmonic test:

(1) The 5th harmonic content of the test process: Min = 0.00%, Max = 4.83%;

(2) The 7th harmonic content of the test process: Min = 0.00%, Max = 4.03%;

(3) The 11th harmonic content of the test process: Min = 0.00%, Max = 3.83%.

5. Carrier frequency test:

(1) Minimum carrier frequency: 1kHz

(2) Maximum carrier frequency: 12kHz

6. Overload capacity test: 150%RMS for 1 minute, 200%RMS for 10 seconds.

7. Noise test: The maximum noise at a distance of 2 meters from the filter in the standard configuration-56dB-A.

8. Voltage and current waveform: the voltage and current waveform in front of the sine wave filter.