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Compensated high-current generation device

A generating device and high-current technology, which is applied in the direction of circuit, inductor, power supply testing, etc., can solve the problem of correctness, reliability impact, difficulty of high-precision automatic constant current control of circuit breaker and protector protection characteristic test, and no compensation The adjustment link and other issues can be improved to achieve the effect of improving the adjustment resolution, the number of turns, and the wide range of output current.

Inactive Publication Date: 2009-10-28
JIANGSU TRIGIANT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current high-current generating device, such as the patent No. 200420114077.3 applied on December 13, 2004, is called "high-current generator" and the patent No. 92205768.0 applied on March 30, 1992, named "portable adjustable large "current generator", there is no compensation adjustment link, it is difficult to generate high-precision large current
In addition, in the testing of low-voltage products such as circuit breakers and protectors, electric methods are often used to achieve automatic adjustment. If there is no compensation adjustment link, it is difficult to perform high-precision automatic constant current control. The correctness of the protective characteristic test of circuit breakers and protectors , influence on reliability

Method used

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  • Compensated high-current generation device

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Embodiment Construction

[0008] Referring to the accompanying drawings, the compensating large current generating device includes an autotransformer TB1 for coarse adjustment, a compensating autotransformer TB2, a compensating transformer TB3, a multi-tap autotransformer TB4, a step-up transformer TB5, and a contactor KM1 , KM2, KM3. The single-phase 220V voltage is connected to the autotransformer TB1 and the compensation autotransformer TB2, and the moving terminal (output terminal) 01 of the autotransformer TB1 is connected to one end of the secondary coil of the compensation transformer TB3 for coarse voltage adjustment ; The output terminals 02 and 03 of the compensating autovoltage regulator TB2 are respectively connected to the primary coil of the compensating transformer TB3, so that the output voltage of the compensating transformer TB3 can be fine-tuned within the range of ±10V; the output voltage U1 of the autotransformer TB1 and the compensation The output voltage U2 of the transformer TB3...

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Abstract

The invention discloses a compensated high-current generation device, which belongs to a test resource device of circuit breakers and protectors. The compensated high-current generation device comprises an automatic coupling voltage regulator and a compensated automatic coupling voltage regulator which are connected to a phase line L and a zero line N, the compensated automatic coupling voltage regulator is connected with a primary coil of a compensation transformer, the automatic coupling voltage regulator is connected with a secondary coil of the compensation transformer, the compensation transformer is connected with a multi-tap autotransformer, the multi-tap autotransformer is connected with a contactor, the contactor is connected with a current rising transformer, and the current rising transformer is connected with a tested object. The compensated high-current generation device has the advantages that the compensated high-current generation device improves adjustment resolution, ensures the high precision of the current output by a secondary coil of the current rising transformer, and has wide range of output current.

Description

technical field [0001] The invention relates to a compensating type large current generating device, in particular to a compensating type large current generating device for testing circuit breakers and protectors, and belongs to test source devices for circuit breakers and protectors. technical background [0002] In the testing of low-voltage products such as circuit breakers and protectors, large current generators are often used to generate adjustable high currents for testing various protection characteristics, requiring a wide range of current adjustment and high precision. The current high-current generating device, such as the patent No. 200420114077.3 applied on December 13, 2004, is called "high-current generator" and the patent No. 92205768.0 applied on March 30, 1992, named "portable adjustable large "Current generator" has no compensation and adjustment link, so it is difficult to generate high-precision large current. In addition, in the testing of low-voltage...

Claims

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Application Information

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IPC IPC(8): H02M5/12H01F38/16G01R31/42
Inventor 顾启民涂水林杨永飞谢启
Owner JIANGSU TRIGIANT TECH
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