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Capacitor repeat overvoltage test device

A test device and capacitor technology, applied in testing circuits, testing dielectric strength, etc., can solve problems such as long rise and fall times of test waveforms, disputed test results, etc., achieve complete test waveforms, reduce wave modulation time, and ensure consistency Effect

Inactive Publication Date: 2014-11-26
SHANGHAI SIEYUAN CAPACITOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, at present, the most authoritative capacitor inspection organization in China - the National Power Capacitor Quality Supervision and Insp

Method used

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Embodiment Construction

[0015] The following will combine Figure 1 to Figure 4 The capacitor repeated overvoltage test device provided by the present invention is described, which is an optional embodiment of the present invention, and it can be considered that those skilled in the art can modify and polish it within the scope of not changing the spirit and content of the present invention.

[0016] Please refer to figure 1 , this embodiment provides a capacitor repetitive overvoltage test device, including a voltage regulator TY, an electronic voltage regulation unit, a transformer B, an adjustable reactor L, an electronic wave modulation unit, a capacitor voltage divider, a monitoring system and an oscilloscope , the voltage regulator TY and the electronic voltage regulating unit are respectively connected in parallel to the low-voltage side of the transformer B to form a low-voltage circuit, and the tested capacitor C x and the capacitive voltage divider are respectively connected in parallel to...

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Abstract

The invention provides a capacitor repeat overvoltage test device which comprises a voltage regulator, an electronic voltage regulating unit, a transformer, an adjustable electric reactor, an electronic wave modulating unit, a capacitive voltage divider, a monitoring system and an oscilloscope. The voltage regulator and the electronic voltage regulating unit are connected to the low voltage side of the transformer in parallel, a tested capacitor and the capacitive voltage divider are connected to the high voltage side of the transformer in parallel, the adjustable electric reactor and the electronic wave modulating unit are connected to the high voltage side of the transformer in parallel after being connected in series, the electronic voltage regulating unit and the electronic wave modulating unit are connected with the monitoring system, and the low voltage arm of the capacitive voltage divider is connected with the oscilloscope.

Description

technical field [0001] The invention relates to the field of high-voltage power capacitor testing, in particular to a capacitor repetitive overvoltage testing device. Background technique [0002] The repeated overvoltage test of the capacitor unit is a very demanding test. It is a special test to test the ability of power capacitors to withstand repeated periodic overvoltages. It is one of the important basis for the identification of new products of power capacitors. The capacitor test standard GB / T 11024.2-2001 stipulates that the test must meet the standard waveform. [0003] However, at present, the most authoritative capacitor inspection organization in China - the National Power Capacitor Quality Supervision and Inspection Center's test waveform rise and fall time is too long to fully meet the standard requirements, and the test results are somewhat controversial. Contents of the invention [0004] The technical problem to be solved by the invention is how to carry...

Claims

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Application Information

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IPC IPC(8): G01R31/14
Inventor 黄镜明王崇祜
Owner SHANGHAI SIEYUAN CAPACITOR