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Household intermittent electric leakage alarm device

An alarm device and intermittent technology, applied in the direction of measuring device, only measuring current, measuring electrical variables, etc., can solve the problems of frequent power outages and difficult to find fault points for users, so as to improve the reliability of power supply, reduce the safety risk of electricity consumption, The effect of reducing manpower

Pending Publication Date: 2018-02-23
NANJING POWER SUPPLY CO OF STATE GRID JIANGSU ELECTRIC POWER CO +2
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The technical problem to be solved in the present invention is: the false alarm device in the resident's home directly acts when the leakage current is greater than 30mA; When the leakage current of a single household is less than 30mA, the leakage current value will be added to the total leakage protection device, so that once an intermittent leakage trip occurs at the total leakage protection device, it will cause frequent power outages for other users under the line, and the fault point is not easy look up

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  • Household intermittent electric leakage alarm device
  • Household intermittent electric leakage alarm device
  • Household intermittent electric leakage alarm device

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Embodiment Construction

[0017] In order to make the content of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, for the sake of clarity, representation and description of components that are not relevant to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions.

[0018] refer to figure 1 , residential intermittent leakage alarm device, including leakage current transformer, sampling processing unit, MCU unit, key unit, buzzer, buzzer drive unit, display screen, display screen drive unit, ISP interface and power supply, the leakage The current transformer is connected to the input end of the sampling processing unit, the output end of the sampling processing unit is connected to the MCU unit, the button unit is connected to the MCU unit, the input end of the buzzer driving unit is conn...

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Abstract

The invention discloses a household intermittent electric leakage alarm device. The household intermittent electric leakage alarm device comprises an electric leakage current transformer, a sampling processing unit, an MCU unit, a key unit, a buzzer, a buzzer drive unit, a display screen, a display screen driving unit, an ISP interface and a power source; the electric leakage current transformer is connected with the input end of the sampling processing unit, the output end of the sampling processing unit is connected with the MCU unit, the key unit is connected with the MCU unit, the input end of the buzzer drive unit is connected with the MCU unit, the buzzer is connected with the output end of the buzzer drive unit, the input end of the display screen drive unit is connected with the MCU unit, the display screen is connected with the output end of the display screen drive unit, the ISP interface is connected witht the MCU unit, the power source is connected with and supplies power to the sampling processing unit, the MCU unit, the key unit, the display screen driving unit and the ISP interface. The household intermittent electric leakage alarm device is used for detecting electric leakage currents and giving an alarm.

Description

technical field [0001] The invention relates to the technical field of electric power detection, in particular to a leakage detection and alarm device for residential electricity, which can store and display leakage current data. Background technique [0002] At present, two-level leakage protection is generally used in the power distribution system in rural areas: a total leakage protection device is installed in the distribution transformer; a false alarm is installed in the residents' homes. The false alarm device in the resident's home will act directly when the leakage current is greater than 30mA; when the false alarm device in the resident's home fails, the false alarm device will not act when the leakage current of the resident family is greater than 30mA, or when the leakage current of a single household is less than 30mA, The leakage current value will be added to the total leakage protection device, so that once the intermittent leakage trip occurs at the total le...

Claims

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Application Information

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IPC IPC(8): G01R15/18G01R19/00
CPCG01R15/18G01R19/0092
Inventor 姜兵黄蕊姜庆林陶伟杨瑾芮铭欢陈庆海俞新兵
Owner NANJING POWER SUPPLY CO OF STATE GRID JIANGSU ELECTRIC POWER CO
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