Total power aging test circuit for current transformer or frequency transformer

An aging test, full power technology, applied in the field of converters or frequency converters, can solve the problems of complex system, high cost, high energy consumption, etc., and achieve the effect of reducing system maintenance cost, energy loss, and ripple current.

Active Publication Date: 2013-11-20
SUZHOU INOVANCE TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a frequency converter or frequency converter for the defects of high energy consumption, high cost, or complex system of the ful

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  • Total power aging test circuit for current transformer or frequency transformer
  • Total power aging test circuit for current transformer or frequency transformer
  • Total power aging test circuit for current transformer or frequency transformer

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Converters or frequency converters usually include bus capacitors, controllers, and three-phase rectifiers, three-phase inverters, and man-machine interface devices that communicate with the controllers, and some converters or frequency converters only include rectifiers and inverters. one of the transformers. The controller usually includes a standard control module for controlling the normal operation of the converter or frequency converter, and the man-ma...

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Abstract

The embodiment of the invention discloses a total power aging test circuit for a current transformer or a frequency transformer. The total power aging test circuit comprises a filter reactor, a boosting transformer and a direct-current power supply, wherein the direct-current power supply is communicated with two ends of a bus capacitor; the input end of the boosting transformer is communicated with the output end of a three-phase inverter through the filter reactor, and the output end of the boosting transformer is communicated with the input end of the three-phase inverter. The total power aging test circuit also comprises an aging test module arranged in a controller and an aging test triggering unit arranged on human interface device. The aging test triggering unit is used for controlling the running state of the aging test module, and the aging test module is used for controlling the current transformer or the frequency transformer for an aging test. The total power aging test circuit can effectively reduce the energy consumption in the aging test process, simplifies the structure of a test system, and reduces the maintenance cost of the system.

Description

technical field [0001] The invention relates to the technology of converters or frequency converters, in particular to a full-power aging test circuit for converters or frequency converters. Background technique [0002] Manufacturers of converters or frequency converters need to test various performances of their products before leaving the factory. The aging test is to simulate the electrical characteristics of the actual load and operate at full load to test the inverter and drive circuit of the converter or frequency converter. Full-power aging test is a very important part of the reliability test of converters or frequency converters, especially for high-voltage and high-power converters and frequency converters. At present, the full-power aging test circuits that use more high-power converters or frequency converters are mainly divided into three categories. [0003] The invention patent with application number CN201220260394.0 provides the first type of full-power a...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 洪磊秦井武杨远钢罗证嘉罗进恒
Owner SUZHOU INOVANCE TECH CO LTD
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