An Electric Energy Meter for Detecting Measurement Errors
A technology of measurement error and electric energy meter, which is applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve the problems of low service life and high replacement cost, and achieve the effect of improving service life and reducing replacement cost
Active Publication Date: 2021-03-05
ZHEJIANG CHINT INSTR & METER +1
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[0004] In view of this, the embodiment of the present invention proposes an electric energy meter for detecting measurement errors to solve the problems of high rotation cost and low service life of the existing electric energy meter error detection technology
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[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the term "center" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and oper...
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An embodiment of the present invention provides an electric energy meter for detecting metering errors. The electric energy meter for detecting metering errors includes: a metering chip, a controller, and at least one signal detection module; each signal detection module is respectively connected to the metering chip for obtaining the error Detect the input value and output value of the error detection signal, and transmit the input value and output value of the error detection signal to the metering chip; the metering chip is connected to the controller, and is used to obtain the attenuation of the error detection signal according to the input value and output value of the error detection signal The controller obtains the measurement error of the electric energy meter according to the attenuation state of the error detection signal, so that the error state of the electric energy meter can be judged without dismantling the meter for re-testing, which reduces the rotation cost of the electric energy meter and improves the service life of the electric energy meter .
Description
technical field [0001] The invention relates to the technical field of electric energy measurement, in particular to an electric energy meter for detecting measurement errors. Background technique [0002] With the rapid development of smart meter technology, the data management of smart meters is becoming more and more mature, but the management of the operating error data of the electric energy meter is still in a blank stage. As the key data in the operation process of the electric energy meter, the error of the electric energy meter is related to The accuracy of electric energy measurement is the core of the entire electric energy management. However, after the traditional smart energy meter is installed on site, it is impossible to know its own operating error. Due to the difficulty of on-site error detection, the error status of the current energy meter must be dismantled and re-tested. The workload is huge and the energy is increased. The replacement cost of the mete...
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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 何南海郜波蒋紫松孙浩淇张艳亮俞巧
Owner ZHEJIANG CHINT INSTR & METER