Switching detector of reactive compensator
A compensation device and detector technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, measurement devices, etc., can solve the problem of inability to judge the quality of product switching indicators, achieve light weight and improve delivery quality , the effect of wide adjustment range
Inactive Publication Date: 2013-07-24
王万俊
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Problems solved by technology
In this regard, the supply and demand sides of the device often have disputes because they cannot judge the pros and cons of the product switching index before it is connected to the grid.
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[0013] As shown in the figure, in the electrical principle diagram of the present invention, it is clearly shown that the phase shifter includes an AC phase shifter 4 , a BA phase shifter 5 , and a CB phase shifter 6 . The current regulators respectively include an A-phase current regulator 7 , a B-phase current regulator 8 , and a C-phase current regulator 9 . The current generators include an A-phase current generator 10 , a B-phase current generator 11 , and a C-phase current generator 12 . The power factor monitoring table includes A-phase power factor monitoring table 13, B-phase power factor monitoring table 14, and C-phase power factor monitoring table 15; the current monitoring table includes A-phase current monitoring table 16, B-phase current monitoring table 17, and C-phase current monitoring table. Watch Table 18. The current output of phase A is 19, the current output of phase B is 20, and the current output of phase C is 21. A, B, C, and N are power input termi...
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The present invention provides a switching detector of reactive compensator, which is composed of a phase shifter, a current regulator, a current generator, a power factor monitoring meter and a current monitoring meter. Each phase shifter is respectively connected with each phase current regulator; one outgoing line of each phase current generator is respectively connected with each homogeneous phase power factor monitoring meter, the other outgoing line of each phase current generator is respectively connected with each homogeneous phase current monitoring meter; the voltage and the currentoutputs of the detector are respectively connected with the voltage and the current inputs of the reactive compensator controller. The invention simulates the three-phase power factor variation signal in electric network operation, provides the power factor information source for the production plant of the reactive compensator, is convenient for the production plant to perform the capacitor set switching checkout during producing, and can determine whether the switching index can satisfy the requirement or not, the product outgoing quality is improved, the work amount of the reactive compensator can be reduced when network operating, the reactive compensator can be in right-time switching operating status, the actual reactive requirement of the electric network can be conformed. The invention has small volume, light weight, convenient carrying and is suitable for detection tests under different conditions.
Description
technical field [0001] The invention relates to a reactive power compensation device for energy-saving equipment in a power system, in particular to a switching detector for a reactive power compensation device. Background technique [0002] Reactive power compensation devices are widely used in power systems because of their functions of reducing loss and saving energy, stabilizing system voltage, and improving power quality. The application of this device requires uninterrupted collection of voltage and current at a certain point of the grid line, calculation and analysis of reactive power, or power factor (that is, phase lead or lag state) and voltage level, and reactive power compensation by capacitor banks. When each parameter meets the input setting value, the compensation capacitor bank is put into operation; when each parameter reaches the cut-off setting value, the compensation capacitor bank is out of operation. Therefore, the switching index of the device is an i...
Claims
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IPC IPC(8): G01R31/00G01R1/28H02J3/18
CPCY02E40/30
Inventor 王万俊
Owner 王万俊