Reactive power compensation cabinet, capacitor cabinet, compensation control cabinet, low-voltage power installation system

Description :

　　What problems may be encountered in the daily application of reactive power compensation cabinets? Here are a few points:

　　Problem 1: After the installation and debugging of the manual self integrated capacitor compensation cabinet device is completed, it cannot run synchronously. The controller for manually starting and switching the capacitor bank displays normally, but there is no response during automatic operation. This may be due to the following reasons:

　　The power factor of the front power grid is higher than the upper limit of the controller power factor, indicating a leading state, and the current sampling signal is reversed. The current voltage setting of the power grid is unreasonable and has not reached the starting conditions. The voltage value displayed by the controller should be kept below the upper limit of the controller voltage.

　　Problem 2: The controller of the reactive power compensation device is in an undercurrent state, which may be caused by the following reasons:

　　When the motor load is small, the current is relatively small and cannot reach the current size that meets the starting performance.

　　There is a short circuit in the power grid circuit.

　　When operated manually, the selection process of electronic component transformers is not suitable, the configuration is not applicable, and both large and small can have an impact. Errors in the ratio setting can directly affect the calculation of reactive power.

　　Question 3: What are the misconceptions in the wiring of capacitor compensation cabinets, and how can we avoid such situations from happening?

　　Wiring all distribution equipment before putting it into use is a rigorous and meticulous task. Wiring errors can result in inaccurate power factor detection values, which may appear to increase the power factor but actually decrease instead. This is what we often refer to as typical overcompensation, and more seriously, it can burn out electronic components and cause damage to distribution equipment.

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• Reactive Power Compensation Cabinet