Sine wave reactor

Short Description:

Converts the motor’s PWM output signal to a smooth sine wave with low residual ripple voltage, preventing damage to the motor’s winding insulation. Reduce the phenomenon of resonance caused by distributed capacitance and distributed inductance due to the length of the cable, eliminate the motor overvoltage caused by high dv/dt, eliminate the premature damage of the motor caused by eddy current loss, and the filter reduces the audible noise of the motor.

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Product Detail

Product Tags

product model

Selection table
380V sine filter standard product selection table

Remark

(1) The above models are our standard products, and other specifications can be customized according to customer requirements;
(2) If you need specific parameters and prices during model selection, please consult our business;
(3) For specific parameters and dimensions, please refer to the specifications and drawings provided by our company for details.
Sine wave filter selection considerations
1. After using the sine wave filter, the load capacity of the inverter will be lower than the load capacity of the rated power frequency load of the motor.
2. The sine wave filter will cause a certain proportion of voltage drop in the filtered voltage. At a fundamental frequency of 50Hz, the voltage drop is about 10%. Its ratio is proportional to the change of the fundamental frequency.
3. The filter filters out a large number of high-order harmonic components in the process of filtering the PWM wave into a sine wave, so the inverter will have about the rated output current of the inverter when the filter is no-load.
4. After using the sine wave filter, the connectable wire length is 300m-1000m
5. For conventional sine wave filter products, the corresponding inverter output carrier frequency is 4-8KHz. If the carrier frequency of your application is not within this range, please explain to the company. Otherwise, the use of the filter will be affected, and the filter will be burned in severe cases.
6. The filter should ensure good ventilation when in use.
Sine wave filter filtering effect diagram
The actual waveform output by the inverter (single waveform diagram)
The actual waveform after filtering by the filter

Technical Parameters

Features
The high-performance foil winding structure is adopted, and the aluminum row is led out, which has small DC resistance, strong anti-electromagnetic ability, and strong short-time overload capability; high-performance Japanese-grade insulating materials are used to ensure that the product can still be maintained under severe working conditions. Reliable performance; the reactor has high dielectric strength and can withstand extremely high dv/dt voltage impact. The reactor adopts the vacuum pressure impregnation process, and the audible noise is small.
Product parameters
Rated working voltage: 380V/690V 1140V 50Hz/60Hz
Rated operating current: 5A to 1600A
Working environment temperature: -25°C~50°C
Dielectric strength: core one winding 3000VAC/50Hz/5mA/10S without flashover breakdown (factory test)
Insulation resistance: 1000VDC insulation resistance ≤ 100M
Reactor noise: less than 80dB (tested with a horizontal distance of 1 meter from the reactor)
Protection class: IP00
Insulation class 2F or above
Product implementation standards: GB19212.1-2008, GB19212.21-2007, 1094.6-2011.