Method for rapidly detecting high-error electric power in single phase

Abstract

The invention discloses a method for rapidly detecting high-error electric power in a single phase. The method is characterized by comprising a connecting step, an inputting step, a locking step, and a determining step. The method measures a single-phase electric meter by using a device for rapidly detecting high-error electric power in a single phase adopting voltage locking technology, may input reference voltage signal data into a detection device by manual input or one-time pre-measurement, detects the electric meter to be detected through the data, does not require real-time voltage values in calculation, retains an original calibration function, simplifies a wiring way in order to achieve rapid measurement, and greatly improves work efficiency. For the electric meters in the same line, the detection may increase efficiency by 50%. Voltage line are not required to be connected, which means that an exposed part of a power supply is not contacted and a safety level is greatly increased.

Description

technical field [0001] The invention relates to the field of calibration of electric energy metering devices, in particular to a single-phase fast detection method for high-error electric energy. Background technique [0002] The traditional energy meter measurement and verification device needs to collect voltage and current, and compare and verify the measurement accuracy of the energy meter measurement device by comparing the energy measurement with the pulse and revolution number of the energy meter measurement device. [0003] The reason for the high error metering device: man-made electricity theft, the purpose of which is to measure less or even not measure the energy meter, so the method of changing the secondary wiring of the metering circuit is generally used. The main methods are: [0004] a. Loss of voltage: that is, a certain phase or all phases of the metering circuit, voltage leads, etc. are removed, so that the meter only has current and no voltage. Unable t...

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Problems solved by technology

[0014] see figure 1 , this figure is the wiring diagram of single-phase watt-hour meter 2 and single-phase watt-hour meter calibrator 1 during calibration. It can be seen from the figure that during calibration, single-phase watt-hour meter calibrator 1 needs It is time-consuming to connect the voltage line for verification, and on the other hand, because of the need to connect the voltage line and touch the naked part of the power supply, there is a great potential safety hazard

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