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Multi-output power supply for residual current protective breaker testing device

A technology for protecting circuit breakers and testing devices, which is used in circuit breaker testing, measuring devices, components of electrical measuring instruments, etc.

Active Publication Date: 2015-09-09
SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A general-purpose, full-featured residual current protective circuit breaker test device can cover the testing of A-type, AC-type and B-type leakage products. Its core is how to provide various outputs required by the test conditions in the national standard, that is, in the test device The output power supply, but the power supply that meets these test requirements has not been reported

Method used

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  • Multi-output power supply for residual current protective breaker testing device
  • Multi-output power supply for residual current protective breaker testing device
  • Multi-output power supply for residual current protective breaker testing device

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Embodiment Construction

[0028] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0029] The output of the power supply system disclosed in the present invention covers the test requirements of A-type, AC-type and B-type leakage products, and the different outputs of the power supply are realized by the following technologies or specific circuits:

[0030] (1) Working principle of power system

[0031] The block diagram of the power system is attached figure 1 shown.

[0032] The multi-output power supply disclosed in the present invention is a complete system that can provide various outputs. For external circuits (such as PLC control) and test products, the power supply can be regarded as an independent module, and only the external PLC control system 17 The PLC connected to the power supply controls the acquisition interface 7, connects the test object 21 to the current output interface 11, and then comple...

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Abstract

The invention discloses a multi-output power supply for a residual current protective breaker testing device. The multi-output power supply comprises a power supply, various components of an electronic load, and operating principles and adjusting modes of various outputs of thereof. The multi-output power supply complies with all test requirements of type-B electric leakage product break time and tripping current tests in the GB22794-2008 standard, and is suitable for testing type-A and type-AC electric leakage products.

Description

technical field [0001] The invention relates to a multi-output power supply for a residual current protection circuit breaker test device. The power supply can output the voltage and current forms required by various test conditions in the national standard GB22794-2008. The power supply is used with simple peripheral logic control The circuit can constitute a complete residual current protection circuit breaker test device. Background technique [0002] At present, most of the residual current circuit breaker test devices on the market are A-type or AC-type, and there is no test device that can cover the breaking time and tripping current detection of B-type residual current circuit breaker products. The B-type leakage protector test device is mainly used for the test of B-type leakage products with a rated residual current of 500mA and below. Type B RCCB and Type B RCBO)" standard. A general-purpose, full-featured residual current protective circuit breaker test device c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01R1/28
Inventor 胡敏史济炜尹天文季慧玉柴熠潘益勇朱文明
Owner SHANGHAI ELECTRICAL APPLIANCES RES INSTGROUP