Measuring device for measuring capacitance in parallel capacitor bank

Abstract

The invention relates to a testing device for measuring capacitance in a parallel capacitor bank. According to the technical scheme provided by the invention, the testing device for measuring capacitance in the parallel capacitor bank comprises a testing and collecting device, wherein the output end of the testing and collecting module is connected with the input end of a control module; the power ends of the testing and collecting module and the control module are respectively and electrically connected with a power output end of a power module; the testing and collecting module measures the current value of capacitance to be tested and the voltage value at two ends of capacitance to be tested, and inputs the current value and the voltage value in the control module after the current value and the voltage value are converted; and the control module obtains the active power value of the capacitance to be tested according to the treated and measured current value and the voltage value, and stores and outputs the capacitance value of the capacitance to be tested after treatment according to the active power of the capacitance to be tested, the measured current value and the voltage value. The testing device provided by the invention has the advantages of simple and compact structure, wide application range, high measuring accuracy, safety and reliability, and is convenient to install and use.

Description

technical field [0001] The present invention relates to a test device, especially a test device for measuring the capacitance in a parallel capacitor bank, in particular to a test device which can be used for testing the capacitance in a parallel capacitor bank and can simultaneously perform three-phase capacitor bank balance A testing device belongs to the technical field of capacitance measurement. Background technique [0002] In order to reduce the reactive power loss in the power system, the method of connecting capacitor banks in parallel is usually used to improve the power factor. In practical application, the accident rate of capacitor compensation device is relatively high, which is related to its working state. The characteristics of the working state of the capacitor device can be summarized in twelve words: high field strength, full load, frequency switching, and many attachments. The four aspects contained in these twelve words are not conducive to the reliabi...

AI Technical Summary

Problems solved by technology

[0003] In the field, the capacitors are connected in parallel in groups, so the general capacitance meter needs to remove the lead wires before measuring, the workload is heavy, and it is easy to cause wiring errors

[0004] There are many capacitors in the capacitor bank, and the on-site testing workload is heavy. At present, the calculation of capacitance balance configuration is performed manually by personnel. The process is cumbersome, the calculation time is long, and the balance often cannot reach the optimal configuration.

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