Electric energy meter safety protection method
A technology for safety protection and electric energy meter, which is applied in the direction of measuring electric variables, image data processing, measuring devices, etc., can solve the problems of not being able to adapt to the special requirements of time-sharing billing, low accuracy of timing and segmentation, troublesome period adjustment, etc., to avoid Loss of economic benefits, reliable design, and saving of computing resources
Inactive Publication Date: 2020-07-14
廖树林
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Problems solved by technology
Due to the poor reliability of this time-of-use meter
The accuracy of time division is too low (minimum division is 5min), it is susceptible to interference, time period adjustment is also troublesome, and the use function is single, which cannot meet some special requirements in time-of-use billing. It has been basically eliminated and disabled at present.
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[0015] Electric energy meters often encounter various acts of stealing electricity in use. The stealer uses various methods to deliberately change the normal wiring of the electric energy metering voltage circuit, or deliberately cause the metering voltage circuit to fail, causing the voltage coil of the electric energy meter to lose voltage or the voltage received, resulting in less electricity metering. This method of stealing electricity It is called the undervoltage stealing method.
[0016] At present, the status of the electric energy meters scattered in various places used by the electric power operation department has remained unchanged. The data interfaces of each electric energy meter are in an open state, and it is easy for people who understand the internal structure of a certain instrument to modify the internal data. As a result, the economic interests of the power operation department have suffered severe losses.
[0017] In order to overcome the above shortcomings,...
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The invention relates to an electric energy meter safety protection method. The method comprises the steps that an electric energy meter safety protection system is operated to protect an electric energy meter, and the electric energy meter safety protection system comprises protection control equipment which is arranged in a shell of the monitored electric energy meter and used for controlling the monitored electric energy meter to enter a data protection state when a first control instruction is received; the protection control equipment is also used for controlling the monitored electric energy meter to quit the data protection state when receiving the second control instruction; various data interfaces of the monitored electric energy meter are closed in the data protection state; theelectric energy meter safety protection system also comprises a supporting framework which comprises a main connecting piece and a metal supporting structure.
Description
Technical field [0001] The invention relates to the field of electric power meters, in particular, the invention relates to a safety protection method for electric power meters. Background technique [0002] An electric energy meter is an instrument used to measure electrical energy, also known as an watt-hour meter, a fire meter, and a kilowatt hour meter, which refers to an instrument that measures various electrical quantities. [0003] Pay attention when using the electric energy meter. In the case of low voltage (not exceeding 500 volts) and small current (tens of amperes), the electric energy meter can be directly connected to the circuit for measurement. In the case of high voltage or high current, the electric energy meter cannot be directly connected to the line, and must be used with a voltage transformer or a current transformer. [0004] The first-generation quartz clock-controlled time-sharing watt-hour meter was mainly produced in the early days. This kind of electric...
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Login to View More IPC IPC(8): G01R11/24G06T7/11G06T7/13G06T3/00G06T3/40
CPCG01R11/24G06T7/11G06T7/13G06T3/4038G06T3/147
Inventor 廖树林
Owner 廖树林