Sowest Electric
1 / 5
With the rapid development of new power distribution and electrical equipment, it brings people efficient work and convenient life at the same time, but also brings waves of pollution of power grid. The pollution of the power grid makes our electricity consumption environment gradually deteriorate, which greatly affects the safety and efficiency of electricity consumption. The active power filter is the most ideal equipment for controlling power grid pollution, comprehensively improving power grid quality and efficiency, and ensuring the safety of power grid and electrical equipment.
It adopts the most advanced active harmonic compensation technology to dynamically eliminate power grid waves, detect the current waveform generated by nonlinear negative in real time, and separate the harmonic part. Then through the IGBT inverter circuit output and harmonic current component of the equal, opposite direction of the compensation current into the power supply system to offset the load harmonics, ensure that the current absorbed from the grid is sine wave, to achieve the selection of harmonics, resonance suppression and other functions. In addition, it can also provide leading or lagging reactive current, which is used to improve the power factor of the grid and realize dynamic reactive power compensation.
Provides inductive and capacitive reactive power of any fundamental harmonic to the grid from the access point. It features separate power for each phase, helping to balance three-phase current.
Obtains load current via the converter, separating the harmonic component and feeding it back inversely. This suppresses grid harmonics, keeping the current as a pure fundamental wave.
Designed for four-wire grids, compensating third harmonics and neutral line superimpositions. The neutral load capacity can scale up to three times that of the external conductor.
Feeds back DC link capacitor power when loads rise, and retrieves it as loads drop. This smooths grid-side changes and eliminates perceived light flicker (Pst=1).
When a sine wave voltage is applied to a nonlinear load, the current becomes a non-sine wave. The non-sine wave current creates a voltage drop on the grid impedance, which causes grid voltage distortion. Components that are several times the fundamental frequency are called harmonics. Most widely used modern loads are nonlinear, generating large harmonic currents.
| System Voltage | Rated Compensation Current | Y Series | Dimensions (LxWxH, mm) | L Series | Dimensions (LxWxH, mm) |
|---|---|---|---|---|---|
| 400VAC | 030A | LSTAY - 030/400 | 445×530×190 | LSTAL - 030/400 | 445×530×190 |
| 400VAC | 050A | LSTAY - 050/400 | 445×530×190 | LSTAL - 050/400 | 445×530×190 |
| 400VAC | 075A | LSTAY - 075/400 | 445×530×190 | LSTAL - 075/400 | 445×530×190 |
| 400VAC | 100A | LSTAY - 100/400 | 542×615×240 | LSTAL - 100/400 | 542×615×240 |
| 400VAC | 150A | LSTAY - 150/400 | 542×615×240 | LSTAL - 150/400 | 542×615×240 |
| 400VAC | 200A | LSTAY - 200/400 | 542×672×270 | LSTAL - 200/690 | 542×672×270 |
| 690VAC | 100A | LSTAY - 100/690 | 542×690×270 | LSTAL - 100/690 | 542×690×270 |
