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AC 380V leakage protector with adjustable leakage alarm value

A leakage protector and alarm value technology, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, electrical components, etc., can solve the problem of inconvenience and achieve the effect of easy use

Inactive Publication Date: 2019-04-16
南京长亚轨道交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing leakage protectors are divided into multiple models and specifications according to the leakage alarm value, which need to be selected according to actual needs. Once the wrong selection must be replaced, it is not easy to use

Method used

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  • AC 380V leakage protector with adjustable leakage alarm value

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Embodiment Construction

[0012] The present invention will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0013] Such as figure 1 As shown, the embodiment of the present invention provides an AC380V leakage protector with adjustable leakage alarm value, including a sampling unit 1, which is used to collect three-phase current data passing through the leakage protector, and the sampling unit 1 A processor 2 is connected to send the collected current data to the processor 2. The processor 2 is connected to an adjustment unit 3, a timing unit 4 and a relay output unit 5. The adjustment unit 3 is used to set an electric leakage alarm value, when the three-phase current data is greater than the ...

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Abstract

The invention discloses an AC 380V leakage protector with adjustable leakage alarm value. The AC 380V leakage protector includes a sampling unit which is used for collecting three-phase current data passing through the leakage protector. The sampling unit is connected with a processor to send the collected current data to the processor. The processor is connected with an adjusting unit, a timing unit and a relay output unit. The adjusting unit is used for setting the leakage alarm value. When the three-phase current data is greater than the leakage alarm value, the processor makes the timing unit carry out timing. When the timing reaches a set value, the processor makes the relay output unit act to realize leakage protection. The leakage alarm value can be adjusted by a voltmeter or an angle encoder, so that the leakage protector can be applied in various working situations with different leakage alarm value requirements without selecting and matching and is convenient to use.

Description

technical field [0001] The invention relates to the field of leakage protectors, in particular to an AC380V leakage protector with adjustable leakage alarm value. Background technique [0002] The leakage protector, referred to as the leakage switch, is mainly used to protect the electric shock of the person with fatal danger when the equipment has a leakage fault. It has the function of overload and short circuit protection. In some cases, it is used for the infrequent switching start of the line. Existing leakage protectors are divided into multiple models and specifications according to the leakage alarm value, and need to be selected according to actual needs. Once a wrong selection is made, it must be replaced, which is inconvenient to use. Contents of the invention [0003] The object of the present invention is to provide an AC380V leakage protector with adjustable leakage alarm value aiming at the deficiencies in the prior art. [0004] In order to achieve the ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/34H02H3/00
CPCH02H3/34H02H3/006
Inventor 杨少武
Owner 南京长亚轨道交通科技有限公司