Connection testing device of electric energy metering device and using method thereof

Abstract

The invention discloses a connection testing device of an electric energy metering device. The connection testing device comprises a shell in which a connection testing unit and an analog power source unit are arranged, wherein the analog power source unit comprises a battery and an inverter circuit; the output end of the battery is connected with a direct current input end of the inverter circuit; an alternating current output end of the inverter circuit is an output end of the analog power source unit; and the output end of the battery is also connected with a power input end of the connection testing unit. The using method of the device comprises the following steps that: a secondary side of a voltage isolating transformer of the device is connected with a voltage connecting terminal of the electric energy metering device; the connection testing unit measures a corresponding current terminal; if the amplitude and the phase relation of each phase of measured voltage current are correspondingly consistent with the output of the device, the connection is correct; and if the amplitude and the phase relation of each phase of measured voltage current are inconsistent with the output of the device, the connection is false. By the device and the method, the problems that an external power supply is not arranged on site to supply power, the device is inconvenient to carry, detected equipment is not provided with a high-voltage transformer and the voltage current is not given or detected during detection of electric energy metering equipment are solved.

Description

technical field [0001] The invention belongs to measuring instruments, in particular to a wiring test device and a using method of an electric energy metering device. Background technique [0002] In the measurement process of electric energy metering devices (such as electric energy meters), at present, the meter installation and wiring personnel can only use a multimeter to roughly test whether the wiring of the electric energy meter is connected before the power metering cabinet is closed and the power supply is not available on site. Correct, sometimes you have to remove the stitches to check. This method is inconvenient, inaccurate, and prone to human errors. In the existing technology, there are mainly four problems: no external power supply on site, heavy weight for portability, efficiency improvement to achieve energy saving, whether the inspected equipment has a high-voltage transformer, voltage and current setting and detection. Contents of the invention [0003...

AI Technical Summary

Problems solved by technology

[0002] In the measurement process of electric energy metering devices (such as electric energy meters), at present, the meter installation and wiring personnel can only use a multimeter to roughly test whether the wiring of the electric energy meter is connected before the power metering cabinet is closed and the power supply is not available on site. Correct, sometimes you have to remove the stitches to check. This method is inconvenient and inaccurate, and it is easy to cause human errors

In the existing technology, there are mainly four problems: no external power supply on site, heavy weight for easy portability, efficiency improvement to achieve energy saving, whether the inspected equipment has a high-voltage transformer, voltage and current setting and detection

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