What Matters Should Be Paid Attention To in The Design Of Low-voltage Dynamic Reactive Power Compensation Device?

1. Loads that require low-voltage dynamic reactive power compensation Different loads have different characteristics of reactive power change. Some reactive power changes very quickly, some reactive power changes relatively slowly, and some may change The change is relatively fast at the beginning, and it is relatively constant in the later period. Therefore, at the beginning of the reactive power compensation device, it is necessary to be clear about the object of reactive power compensation and the characteristics of reactive power changes.

2. Selection of reactive power switching devices The reactive power switching devices directly determine the response speed of the reactive power compensation device. Different reactive power switching devices have very different response speeds. Therefore, when designing reactive power compensation devices Before, it was necessary to select a suitable reactive power switching device according to the reactive power characteristics of the load.

3. The installation position of the reactive power compensation device should be determined according to the distribution of the compensation objects on the site where reactive power compensation is required, and a reasonable installation position of the reactive power compensation device should be determined. Only by choosing the right location can we achieve twice the result with half the effort, otherwise, it may be a waste of time and money, and the compensation effect may not necessarily meet expectations.

4. Determination of compensation capacity The determination of compensation capacity has two meanings. One is the total capacity of compensation. This must be based on the reactive power characteristics of the load, and an appropriate margin must be selected. Generally, it is recommended to reserve a margin of 20% or more. The other is the compensation margin of a single compensation module. In some cases, the system capacity is relatively small. If the capacity of a single compensation module is large, it will be difficult to achieve the desired effect or cause overcompensation. Therefore, The capacity of a single compensation module needs to determine the appropriate capacity of a single compensation module according to the total compensation capacity required by the system. Active reactive power compensation devices can achieve stepless compensation, only need to consider enough margin.