Large-capacity DC electrical test device

A test device and large-capacity technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of inconvenient adjustment and small voltage adjustment range, and achieve the goal of expanding the voltage adjustment range, enhancing safety, and strong functions Effect

Active Publication Date: 2017-02-15
GANSU ELECTRIC APP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a large-capacity DC electrical appliance test device to solve the problem of small voltage adjustment range and inconvenient adjustment of the existing 2-4KV DC electrical appliance product testing device

Method used

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Embodiment Construction

[0026] The present invention and its implementation process will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 , figure 2 A large-capacity DC electric appliance test device is shown, which includes a rectifier transformer T1, a rectifier D, an accompanying circuit breaker QF2, an accompanying product DC contactor KM1, and a test product X1. The rectifier transformer T1 is connected to the power line. The rectifier transformer T1 is connected to one end of the AC protective circuit breaker QF1, and the other end of the AC protective circuit breaker QF1 is connected to the first AC transformer T2, the second AC transformer T3, and the third AC transformer T4 arranged on the power bus L1 , The input terminals of the fourth AC transformer T5 are connected, the output terminals of the first AC transformer T2, the second AC transformer T3, the third AC transformer T4, and the fourth AC transformer T5 are connected to the AC c...

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Abstract

The invention relates to the technical field of electric appliance detection and discloses a testing device for a high-capacity direct-current electric appliance. The testing device for the high-capacity direct-current electric appliance comprises a rectifier transformer T1, a rectifier D, an accompany test sample breaker QF2, an accompany test sample contactor KM1, a tested object X1 and a direct-current speed regulator A. According to the testing device for the high-capacity direct-current electric appliance, thyristors are adopted by the rectifier D to serve as rectification devices, voltage can be smoothly regulated to the maximum value from zero, and the voltage regulation range of the testing device for the high-capacity direct-current electric appliance is widened; control and protection are achieved according to the current of each thyristor, both the safety and the reliability of the testing device are improved, and the service life of the testing device is prolonged; due to the fact that the direct-current speed regulator A is adopted, digital control over a direct-current power supply is achieved, regulation can be conducted on site through a potential regulator B3, regulation can also be conducted through a remote computer, and thus voltage regulation can be achieved rapidly and conveniently through the testing device; the testing device can be used for detection testing of electric appliances on the voltage grade of 2KV-4KV.

Description

technical field [0001] The invention relates to the technical field of electric appliance detection, in particular to a large-capacity direct current electric appliance test device suitable for low-voltage direct current test. Background technique [0002] Saving technology and energy-saving technology will be important technologies for future development. These technologies include: combined cycle, cogeneration, heat pump, high-efficiency energy-saving lamps, building energy-saving technology, power electronics technology, energy efficiency audit, etc. With the development of electric power technology, more and more electrical appliances adopt DC power supply technology, which plays an important role in the utilization of renewable energy. At the current level of scientific and technological development, the performance of large-capacity DC switching devices cannot be solved by simulation calculations. The development of products must pass the information and experience pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 魏凤杰李平康志林牛小东马发翔张双荣
Owner GANSU ELECTRIC APP RES INST
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