Electric energy meter safety protection system
A technology of safety protection and electric energy meter, which is applied in closed-circuit television system, measurement of electrical variables, image data processing, etc., can solve the problems of inability to adapt to the special requirements of time-of-use billing, low accuracy of timing segmentation, and troublesome time period adjustment, etc. Avoid the loss of economic benefits, the design is reliable, and the effect of saving computing resources
Active Publication Date: 2019-05-14
HUNAN LONGZHIXIANG INTELLIGENT TECH
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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] Energy meters often encounter various electricity theft behaviors in use. Electricity thieves use various methods to deliberately change the normal wiring of the electric energy metering voltage circuit, or deliberately cause a fault in the metering voltage circuit, causing the voltage coil of the electric energy meter to lose voltage or reduce the voltage received, resulting in less electricity metering. This method of stealing electricity It is called undervoltage stealing method.
[0016] At present, the state of the energy meters scattered in various places used by the power operation department has remained unchanged. Each data interface of each energy meter is in an open state, and it is easy to be modified by personnel who understand the internal structure of a certain instrument. As a result, the economic interests of the power operation department have been seriously damaged.
[0017] In order to overcome the above disadvantages, the present invention provides...
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The invention relates to an electric energy meter safety protection system which comprises a protection control device arranged in a shell of a monitored electric energy meter and used for controllingthe monitored electric energy meter to enter a data protection state when a first control instruction is received; The protection control device is also used for controlling the monitored electric energy meter to exit the data protection state when receiving the second control instruction; The monitored electric energy meter closes various data interfaces of the monitored electric energy meter inthe data protection state; And the supporting framework comprises a main connecting piece and a metal supporting structure. The electric energy meter safety protection system is reliable in design and high in safety. The state of the electric energy meter can be switched according to whether an authorized human body exists nearby the electric energy meter, and each data interface of the electricenergy meter is closed in a non-safe state, so that the economic benefit of an electric power operation department can be prevented from being lost.
Description
technical field [0001] The invention relates to the field of electric power meters, in particular, the invention relates to a safety protection system for an electric energy meter. Background technique [0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter, and refers to an instrument for measuring various electrical quantities. [0003] When using the energy meter, it should be noted that in the case of low voltage (not exceeding 500 volts) and small current (tens of amps), the 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 needs to be used with a voltage transformer or a current transformer. [0004] The first generation of quartz clock-controlled time-sharing electric energy meters mainly produced in the early days. This kind of ele...
Claims
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Login to View More IPC IPC(8): H04N7/18G01R11/24G06T3/40G06T7/12G06T7/13
Inventor 廖树林
Owner HUNAN LONGZHIXIANG INTELLIGENT TECH