A power grid leakage monitoring device and method
A leakage monitoring and power grid technology, applied in the direction of measuring devices, measuring electricity, short-circuit testing, etc., can solve the problems of low power supply efficiency, potential safety hazards, and instability of power grid leakage monitoring devices, so as to achieve no potential safety hazards and stable power supply voltage , generate high-efficiency effects
Active Publication Date: 2021-07-20
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology
[0005] The application provides a power grid leakage monitoring device and method to solve the problems in the prior art, such as low power supply efficiency, potential safety hazards, instability and high cost of the power grid leakage monitoring device
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[0047] Next, the technical solutions in the present application embodiment will be described in the present application embodiment, and it is clear that the described embodiments are merely the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor are the scope of the present application.
[0048]At present, the power supply mode of the power grid leakage monitoring device mainly uses the power transmission line to electrify and power transmission. The transmission line is electrically powered by a conventional CT electrification mode, a capacitive division, a laser electrical power transmission method, a photovoltaic battery, an ultrasonic reference mode, and a microwave radiation reflection method. However, the energy conversion rate of conventional CT reflection mode is high, easy to take electricity, but is unstab...
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The application discloses a power grid leakage monitoring device and method. The device includes: a leakage current collector, a tuning inductor, a capacitor, an isolation transformer, a rectifier filter, and a monitor; the primary side of the isolation transformer is connected in parallel with the capacitor, and the secondary The rectifier filter is connected in parallel with the rectifier filter, and the monitor is connected in parallel with the rectifier filter; the leakage current collector includes a first electrode and a second electrode, and the first electrode includes a first end and a second end, and the The second electrode includes a third end and a fourth end, the tuning inductor includes a fifth end and a sixth end, and the primary side of the isolation transformer is connected in parallel with the capacitor to form a first equipotential end and a second equipotential end terminal; the first terminal and the third terminal are connected to the leakage diffusion medium, the second terminal is connected to the fifth terminal, and the sixth terminal is connected to the first equipotential terminal; the fourth terminal Connect the second equipotential terminal. In order to solve the problems such as potential safety hazards in the existing power grid leakage monitoring device.
Description
Technical field [0001] The present application relates to the technical field of grid monitoring, and specific relates to a grid leakage monitoring device and method. Background technique [0002] my country's low-voltage grid leakage accidents frequently affect the national production and life, and threatens the safety of the national life and property. In the prior art, the leakage monitoring device monitors the operation of the grid and can prevent the accident caused by leakage. [0003] At present, the power supply mode of the power grid leakage monitoring device mainly uses the power transmission line to electrify and power transmission. The transmission line is electrically powered by a conventional CT electrification mode, a capacitive division, a laser electrical power transmission method, a photovoltaic battery, an ultrasonic reference mode, and a microwave radiation reflection method. However, the energy conversion rate of conventional CT reflection mode is high, easy ...
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IPC IPC(8): G01R31/52G01R31/08
CPCG01R31/088G01R31/50
Inventor 刘红文唐伟超王科孙亚洲杨金东张春丽
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST