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Inductance testing machine

A testing machine and inductance technology, used in inductance measurement, measurement device, measurement of electrical variables, etc., can solve the problems of high requirements for testers, complicated wiring, testing, damage to connection parts, etc., and achieve simple and efficient testing equipment and methods. Effect

Pending Publication Date: 2019-02-15
SHENZHEN JINGQUANHUA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method has a large workload, complicated wiring and testing, and high requirements for testers. Frequent disconnection operations will cause damage to the connection parts and leave potential safety hazards.

Method used

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Embodiment Construction

[0029] see figure 1 , the preferred embodiment of the present invention provides an inductance testing machine 100, which is applied to the automatic testing of the inductance of the reactor. The inductance testing machine 100 includes a testing device 10 , an ammeter 20 , a voltmeter 30 , a controller (EMU) 40 and an industrial computer (IPC) 50 . The test device 10 is connected to the ammeter 20 and the voltmeter 30 to output test results for the ammeter 20 and the voltmeter 30 to detect. The ammeter 20 and the voltmeter 30 are connected to the controller 40 . The controller 40 is connected to the industrial computer 50 .

[0030] The test device 10 includes a power module 11 , a current transformer 12 , an input control module 13 and a test module 14 . The power supply module 11 is electrically connected to the input control module 13 and the test module 14, and provides rated current to the test module 14, and the current transformer 12 collects current through the loop...

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PUM

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Abstract

The invention discloses an inductance testing machine, which is used for testing an inductance value of an electric reactor. The inductance testing machine comprises a test device, an ampere meter, avoltmeter and an industrial computer; the test device comprises a power supply module and at least one test position; the at least one test position is used for placing the to-be-tested electric reactor; the power supply module is electrically connected to the at least one test position and outputs a voltage to the to-be-tested electric reactor; and the ampere meter and the voltmeter continuouslycollect a current value and a voltage value of the to-be-tested electric reactor in a plurality of cycles of the output voltage, and feed back the current and voltage values to the industrial computerfor calculating the inductance value of the to-be-tested electric reactor.

Description

technical field [0001] The invention relates to an inductance testing machine based on voltammetry. Background technique [0002] With the development of the power industry, reactors are more and more widely used in electrical systems. The common reactors used in electrical systems are series reactors and shunt reactors. The series reactor is mainly used to limit the short-circuit current, and it is connected in series or parallel with the capacitor in the filter to limit the higher harmonics in the power grid. The reactor in the power grid is used to absorb the charging capacitive reactive power of the cable line, and the operating voltage can be adjusted by adjusting the number of shunt reactors. High-voltage shunt reactors have multiple functions to improve the reactive power-related operating conditions of power systems. The photovoltaic reactor plays the role of filtering or weakening the harmonics and smoothing waveforms generated by the IGBT power module, and filter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26
CPCG01R27/2611
Inventor 张立品张礼扬鞠万金汪兆华向海兵
Owner SHENZHEN JINGQUANHUA ELECTRONICS
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