Converter Solutions
Your Leading Converter Solutions Supplier
We offer a wide range of converters for diverse applications, from consumer electronics to industrial power systems including AC/DC, DC/DC and DC/AC power-conversion solutions for critical industrial applications. We are also the market leader for reliable power supply solutions offering high conversion efficiency and cost savings.
Why choose us?
Our factory
Our primary production plant in Kunshan city spans an area of 20,000 square meters, situated one hour's drive away from the Shanghai Airport (PVG). We have about 120 patents related to our products.
Sales market
Our products have been exported to the United States, Germany, the United Kingdom, Israel, Australia, and more than 60 countries and regions worldwide.
Custom service
We provide our customers with world-class LV and HV products, along with reliable technology and friendly, flexible customer support. Additionally, we develop "tailor-made" products and solutions tailored to your applications.
Our certificate
We deliver top-quality products that meet international standards such as UL, TUV, CE, EAC, and GOST. Our commitment to excellence is supported by our ISO9001 certification for quality management.
Single-tuned filters
The single-tuned filter, also known as a series filter, allows a specific frequency to pass while attenuating all other frequencies. It consists of a series resonant circuit with an inductor (L) and a capacitor (C). The circuit's resonant frequency (fr) is determined by the values of L and C, given by fr = 1/(2πLC). At the resonant frequency, the filter's impedance is at its minimum, allowing the corresponding harmonic to pass.
Double-tuned filters
The double-tuned filter is a combination of two single-tuned filters. It is designed to allow two specific frequencies to pass while attenuating all other frequencies. It is useful when two significant harmonics need to be eliminated. The design of a double-tuned filter involves selecting the inductance and capacitance values for each resonant circuit such that they resonate at the two target harmonic frequencies.
High-pass filters
The high-pass filter allows all frequencies above a certain cut-off frequency to pass while attenuating all frequencies below the cut-off. This type of filter consists of a series circuit with a resistor (R) and a capacitor (C). The cut-off frequency (fc) is determined by the values of R and C, given by fc = 1/(2πRC). At frequencies above the cut-off, the filter's impedance decreases, allowing the frequencies to pass. At frequencies below the cut-off, the filter's impedance increases, attenuating the frequencies.
Harmonic mitigation
Passive harmonics are designed to reduce harmonics in the power system. These harmonics, caused by VFDs, can disrupt the quality of power, leading to equipment malfunctions and overheating. The primary advantage of using these filters is the mitigation of harmonics, ensuring cleaner and more reliable power.
Improved energy efficiency
By reducing harmonics, passive harmonic filters help optimize energy efficiency. Inefficient power systems can lead to increased energy costs and reduced equipment lifespan. These filters enhance the efficiency of your VFD system, translating into energy savings.
Enhanced equipment lifespan
Harmonic distortions can significantly impact the lifespan of electrical equipment. By smoothing out the power waveform, passive harmonic filters protect your VFD and other connected machinery, prolonging their operational life.
Compliance with standards
Many industrial settings are subject to power quality regulations and standards. Passive harmonic ensures your VFD system adheres to these standards, avoiding potential fines or penalties.
Reduced downtime
Harmonic disturbances can lead to unexpected downtime due to equipment failures. Installing passive harmonic helps in minimizing these disruptions, ensuring continuous operations.
Product Parameters
|
Technical Specification |
Details |
|
Voltage Range |
208V–13.8kV (low/medium voltage) |
|
Frequency |
50/60 Hz (±10%) |
|
Tuned Frequencies |
Customizable (e.g., 250 Hz for 5th harmonic) |
|
Efficiency |
>98% |
|
Installation |
Parallel connection to the load/grid |
|
Standards Compliance |
IEEE-519, EN61558-2-20,EN60076-6 |
Types of Sine Wave Filter
Low voltage filters
Designed for residential and light commercial applications.
High voltage filters
Suitable for industrial applications requiring higher voltage handling.
Custom filters
Tailored to meet specific industry needs and configurations.
●Reduction of motor losses
●Reduction of motor noise
●Reduction of bearing currents
●Reduction of voltage peaks and overvoltage
●Reduction of differential mode and common mode interference
●Reduction of line-borne interference emissions
●Very high filtering efficiency due to precise low-pass tuning
●Reduction of voltage rise time to grid-compliant levels
●Allows for long shielded and unshielded motor cables
●Increases the lifespan of the motor/consumables
Product Parameters
|
Parameter |
Specification |
|
Nominal System Voltage (Ph-Ph) |
200V ~ 480V ±10% |
|
Operating Frequency |
5 Hz to 120 Hz |
|
Switching Frequency |
3 kHz to 10 kHz |
|
Rated Load Power (P) |
1.5 kW to 315 kW |
|
Nominal Current (I) |
3.3 A to 600 A |
|
Residual Ripple Voltage THD (Full Load) |
< 5% |
|
Maximum Transient Overload |
2.0 × rated current |
|
Maximum Permanent Overload |
1.2 × rated current |
|
Design Features |
|
|
Cabinet |
On request |
|
Degree of Protection |
IP00 (others on request) |
|
Construction & Connection |
Terminals or Copper bar |
|
Ventilation |
Natural |
|
Mounting |
On the floor |
|
Installation |
Indoor standards |
|
Operating Temperature |
Ambient: -25°C to +40°C |
|
Relative Humidity |
≤ 85% (non-condensing) |
Shipping term: FOB SHANGHAI
Delivery time: 4-6 weeks after we receive your payment.
Payment term: The advance payment is 100%, all by T/T.
Price validity: One month
Warranty: 18 months after delivery (excluding natural disasters, human factors, improper use, etc.)
Deliver, Shipping, And Serving
FAQ