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Metering device construction acceptance commissioning detection device and detection method thereof

A technology of measuring devices and detection devices, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of unsatisfactory completion acceptance results of measurement devices, uncertain completion acceptance results, and ineffective solution to the construction line inspection of measurement devices, etc. To achieve the effect of compact structure, reasonable design and saving money

Active Publication Date: 2021-09-24
BAODING NEW YUNDA ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the multimeter is mainly used for the construction inspection of the metering device. After the metering device is completed, the battery, DC voltage ammeter, multimeter, clamp-type ammeter and other tools are used to check and accept the metering device. Affected by the technical level and work experience of the inspectors, the completion acceptance of the metering device is not ideal. ;Using the phase voltammeter and electric energy meter field calibrator to power on and accept, realize voltage phase sequence, secondary circuit wiring discrimination, and measurement error detection, which only solves the problem of detection after the metering device is put into operation, and does not effectively solve the construction inspection of the metering device. Difficult lines and uncertain completion acceptance results

Method used

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  • Metering device construction acceptance commissioning detection device and detection method thereof
  • Metering device construction acceptance commissioning detection device and detection method thereof
  • Metering device construction acceptance commissioning detection device and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Example 1, such as Figure 1-9 As shown, the embodiment of the present invention provides a comprehensive detection device for construction inspection, completion acceptance and commissioning of a metering device, including a main unit and an extension; the main unit and the extension are electrically connected through a line inspection table pen;

[0071] The main engine is on the side of the electric energy meter, and check the wiring of the electric energy meter terminal in turn;

[0072] The host includes a voltage and current input module for external input signals through terminal blocks, a line checking information receiving unit, a power management unit, an electric energy metering unit, and a main control unit of the host; the main control unit of the host includes a keyboard management module, an ARM manager, a WiFi module, and a temperature controller. Humidity sensor, LCD display module, UART interface, RS485 interface, SPI interface and USB interface;

[0...

Embodiment 2

[0087] like Figure 1-5 As shown, the embodiment of the present invention provides a line checking method for on-site construction of a metering device:

[0088] SA1, first, adjust the length and angle of the insulating rod according to the working conditions on site, and connect the clamp to the insulating rod for insulation operation; then, connect the ground wire terminal of the extension to the ground wire of the site, and check the lead-out of the line interface JIO The clamps are respectively connected to Ua, Ub, Uc, Ia+, Ia-, Ic+, Ic- on the secondary side of the transformer of the metering device;

[0089] SA2, the ARM manager of the extension sends the coded information dedicated to the corresponding clip on each clip through the TXD of the UART interface through the MAX308ES multiplexer;

[0090] SA3, the host is on the side of the electric energy meter, the ground wire terminal is connected to the ground wire of the site, and the electric energy meter terminal is d...

Embodiment 3

[0092] like Figure 1-5 As shown, the embodiment of the present invention provides a method for measuring the transformation ratio and polarity of the measuring device on-site completion acceptance transformer:

[0093] SB1, the terminal of the extension unit corresponds to Ua, Ub, Uc, Ia+, Ia-, Ic+, Ic- on the secondary side of the transformer of the metering device, and starts the power source;

[0094] SB2, the host measures the signals on both sides of the transformer at the same time, the electric energy metering unit calculates the effective value and phase difference, calculates the transformation ratio of the transformer by the effective value ratio of the two signals, and determines the polarity of the transformer by the phase difference of the two signals;

[0095] SB3, the host computer displays and stores the transformation ratio and polarity of the transformer on the LCD display.

[0096] SB4, the host tests the electrical parameters on the side of the electric e...

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Abstract

The invention relates to a metering device construction acceptance commissioning detection device and a detection method thereof. The detection device comprises a host and an extension set. The host is electrically connected with the extension set through a line checking meter pen; the host comprises a voltage and current input module externally connected with an input signal through a wiring terminal, a line checking information receiving unit, a power management unit, an electric energy metering unit and a host main control unit; the host main control unit comprises a keyboard management module, an ARM manager, a WiFi module, a temperature and humidity sensor, an LCD display module, a UART interface, an RS485 interface, an SPI interface and a USB interface. The ARM manager serves as a main control center and is electrically connected with each module of the host; the device is reasonable in design, compact in structure and convenient to use.

Description

technical field [0001] The invention relates to a detection device for construction acceptance and operation of a metering device and a detection method thereof. Background technique [0002] The quality and accuracy of the installation of electric energy metering devices are directly related to the vital interests of users and power companies. Before the electric energy metering devices are put into operation, professionals should be organized by the power management department to conduct a comprehensive inspection and acceptance. Its purpose is to discover and correct errors in the installation work in a timely manner, check whether the installation quality of the metering device and the wiring process meet the requirements, approve relevant technical management parameters, and provide accurate technical data for the establishment of customer files. At present, the multimeter is mainly used for the construction inspection of the metering device. After the metering device i...

Claims

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Application Information

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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 孙咏梅班福厚甄丛合李敬辉田红锐
Owner BAODING NEW YUNDA ELECTRIC EQUIP
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