Measuring instrument for frequency conversion system
A frequency conversion system and measuring instrument technology, applied in the field of electronics, can solve the problems of low efficiency of the working parameters of the frequency conversion system, and achieve the effect of improving efficiency and simplifying steps
Active Publication Date: 2021-04-30
PETROCHINA CO LTD
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Problems solved by technology
[0005] In order to solve the problem of low efficiency in measuring the working parameters of the frequency conversion system, the invention provides a measuring instrument for the frequency conversion system
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[0026] In order to make the object, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0027] like figure 1 As shown, the embodiment of the present invention provides a measuring instrument 0 of a frequency conversion system. For example, the frequency conversion system may include a three-phase input circuit, a frequency converter and a three-phase output circuit, and the three-phase input circuit, a frequency converter and a three-phase output The circuits are connected in series in sequence. The measuring instrument 0 of the frequency conversion system may include: a meter box 01 and a measuring part 02. Phase AC ammeter 023;
[0028] Three-phase AC voltmeter 021 is used to measure the AC voltage between any two-phase input circuits in the three-phase input circuit when it is connected in parallel with the three-phase input ci...
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The invention discloses a measuring instrument for a frequency conversion system, which belongs to the field of electronics. The measuring instrument of the frequency conversion system includes: a meter box and a measuring part, the measuring part is located in the meter box, and the measuring part includes: a three-phase AC voltmeter, a DC voltmeter and a three-phase AC ammeter; the three-phase AC voltmeter is used to communicate with When three-phase input circuits are connected in parallel, measure the AC voltage between any two-phase input circuits in the three-phase input circuit; DC voltmeter is used to measure the DC voltage on the DC bus when it is connected in parallel with the DC bus of the inverter; three-phase AC The ammeter is used to measure the AC current on each phase of the three-phase output circuit when coupled with the three-phase output circuit. The invention solves the problem of low efficiency in measuring the working parameters of the frequency conversion system and improves the efficiency of measuring the working parameters of the frequency conversion system. The invention is used for the measurement of the working parameters of the frequency conversion system.
Description
technical field [0001] The invention relates to the field of electronics, in particular to a measuring instrument for a frequency conversion system. Background technique [0002] The frequency conversion system includes a three-phase input circuit, a frequency converter and a three-phase output circuit. The three-phase input circuit, the frequency converter and the three-phase output circuit are connected in series in sequence. The final voltage is output to the three-phase output circuit. [0003] If the frequency conversion system breaks down during the working process, it is necessary to use the measuring instrument of the frequency conversion system to measure the working parameters of the frequency conversion system, and then the staff will diagnose the fault of the frequency conversion system according to the working parameters of the frequency conversion system. In the related technology, the measuring instrument of the frequency conversion system is a multimeter. Wh...
Claims
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 杨培伦王东良王锐杨培高刘红兵倪攀陈凌霄侯健
Owner PETROCHINA CO LTD