CC-PDOB01 51405043-175 | HONEYWELL | Low impedance parallel shunt

Description

CC-PDOB01 51405043-175 | HONEYWELL | Low impedance parallel shunt

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The working principle of passive power filters is low impedance parallel shunt, and CC-PDOB01 51405043-175 is passive filtering. From equation (4), it can be seen that the filtering effect of a passive power filter is determined by both the harmonic impedance of the filter and the harmonic impedance of the power grid. For the same passive filter, the filtering effect deteriorates when the internal impedance of the power grid is small, as shown in Figure 14; For the same harmonic impedance of the power grid, when the filter capacity is small, the harmonic impedance increases and the filtering effect deteriorates, as shown in Figure 15.

Example of passive power filter filtering effect

Figure 16 shows the measured results of the filtering effect of a passive power filter in a certain enterprise. Due to the rich content of high-order harmonics above the 11th harmonic load, the filter design fully considers the filtering effect on high-order harmonics. The actual test results show that the total filtering rate of the filter on harmonic current is over 60%. Before the filter is put into operation, the harmonic content of the bus voltage is as high as 8.2%, and after the filter is put into operation, it drops to 4.3%, meeting the national standard requirements.

CC-PDOB01 51405043-175 Passive Power Filter System Composition

Figure 17 shows a typical passive power filter system diagram. The system consists of passive filtering branches, switching control switches, protection components, system controllers, and other components. The CC-PDOB01 51405043-175 switching switch can be a mechanical switch or a solid-state thyristor switch, depending on the frequency of switching.

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