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The fast harmonic-resistant intelligent power capacitor is designed for the situation where the harmonic content in the power network is large, the reactive power changes rapidly, and ordinary power capacitors cannot operate normally. It uses special technologies and processes and is composed of a circuit breaker, thyristor, reactor, and aluminum-shell low-voltage power capacitor. It has the characteristics of fast response, zero-crossing switching of the capacitor, no inrush current impact, effectively prolonging the service life of the capacitor, no amplification effect on harmonics, and the ability to absorb some harmonics.
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8. The drainage system at the windows and basement exterior doors is not well-designed, causing rainwater or snowmelt to enter the basement. Dehumidifier selection: Due to the special underground structure of the basement and the poor air convection with the outside world, the moisture load is much greater than that of the indoor space on the ground. The selection of a dehumidifier cannot be simply based on the area but should be based on the overall moisture load of the usage site.Intelligent Reactive Power CompensationCapacitoris an intelligent reactive power compensation device for reducing line losses, improving the power factor, improving the power quality, and saving energy and reducing consumption in the 0.4kV low-voltage distribution network. The reactive power compensation scheme designed based on the Intelligent Reactive Power CompensationController can refer to the following principles
| Non-linear load ratio | Reactive power compensation design scheme | | | |
| Three-phase balanced static load | Three-phase unbalanced static load | Three-phase balanced frequently changing load | Three-phase unbalanced and frequently changing loads | |
| Non-linear equipment in the load ≤ 15% of the transformer capacity (mainly linear loads) | Three-phase common compensation, zero-crossing switching of composite switches | Phase-separated compensation or hybrid compensation Zero-crossing switching of composite switches; | Three-phase common compensation, dynamic switching of thyristor switches | Phase-separated compensation or hybrid compensation Dynamic switching of thyristor switches; |
| 15% | Three-phase common compensation Zero-crossing switching of composite switches Series 6% or 12% filtering reactance in the capacitor circuit | Phase-separated compensation or hybrid compensation Zero-crossing switching of composite switches Series 6% or 12% non-tuned filtering reactance in the capacitor circuit | Three-phase common compensation Dynamic switching of thyristor switches Series 6% or 12% non-tuned filtering reactance in the capacitor circuit | Phase-separated compensation or hybrid compensation Dynamic switching of thyristor switches Series 6% or 12% non-tuned filtering reactance in the capacitor circuit |
| Harmonic control target | Destroy the parallel resonance between the capacitor and the system, and partially absorb the 3rd, 5th, 7th and above harmonics in the system | Destroy the parallel resonance between the capacitor and the system, and partially absorb the 3rd, 5th, 7th and higher harmonics in the system. | Destroy the parallel resonance between the capacitor and the system, and partially absorb the 3rd, 5th, 7th and higher harmonics in the system. | Destroy the parallel resonance between the capacitor and the system, and partially absorb the 3rd, 5th, 7th and higher harmonics in the system. |
| The ratio of non-linear equipment in the load > 50% of the transformer capacity (there are a large number of harmonics). | Three-phase common compensation Zero-crossing switching of composite switch Tuned filter circuit composed of capacitor or reactor | Phase-separated compensation or hybrid compensation Zero-crossing switching of composite switch Tuned filter circuit composed of capacitor or reactor | Three-phase common compensation Dynamic switching of thyristor switch Tuned filter circuit composed of capacitor or reactor | Phase-separated compensation or hybrid compensation Dynamic switching of thyristor switch Tuned filter circuit composed of capacitor or reactor |
@If the microwave oven is installed inside the wall cabinet, then install a socket for the microwave oven in this place. Some families may have a relatively small kitchen space, so we will make some wall cabinets. Usually, the microwave oven will be placed inside the wall cabinet. Then we need to install a socket in the corresponding cell of this wall cabinet for the microwave oven to use. Install sockets with switches at the corners of the kitchen countertop. According to the needs of the family, three or four such sockets may be required. There are also many electrical appliances used in the kitchen. In addition to the microwave oven, there are also rice cookers, electric ovens, or juicers, etc. Then we can install sockets with switches at the corners of the kitchen countertop. It is not only convenient to use, but also when not in use, we don't need to unplug the power supply anymore. We can directly turn off the switch of the socket.
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