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Electronic phase indication handheld terminal

A handheld terminal and phase technology, which is applied in the field of electric power industry, can solve the problems of different degree of specification of phase indicators, projects can not be delivered normally on schedule, and affect the reliability of power grid power supply, etc. , The effect of improving the accuracy of phase checking and saving phase checking time

Pending Publication Date: 2021-05-04
STATE GRID CORP OF CHINA +1
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AI Technical Summary

Problems solved by technology

[0002] At present, the phase indication of the power grid mainly relies on manual phase verification, and three colors of yellow, green and red are used to indicate the phase at the interval of the substation and on the circuit tower. It will lead to confusion of phase indication, and the management level of each region is inconsistent, and the standardization degree of installing phase indication signs is different, which will also make the design and operation and maintenance personnel misjudge the phase
In the on-site working conditions, due to the failure to replace the phase indicator board or phase color code in time, the phase of the line was wrong during the line reconstruction, and the delay in the construction period caused the project to fail to transmit power on schedule, which affected the power supply reliability of the entire power grid

Method used

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Embodiment 1

[0039] An electronic phase indication handheld terminal, comprising: a control module, a sampling module connected to the control module, a timing module, a communication module and a phase display module;

[0040] The sampling module is composed of current or voltage transformers, which are safely and firmly installed on the transmission line tower. According to the requirements of the insulation performance of each voltage level, the installation position is reasonably adjusted. The higher the voltage, the farther it can be from the live line, and it is responsible for real-time measurement. The line runs current and voltage waveforms in real time, and transmits the measurement data to the control module in time;

[0041] Described control module adopts single-chip microcomputer, and control module receives the sampling data of described sampling module, carries out the conversion and amplification of electric current or voltage, is converted into digital signal by internal A...

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Abstract

An electronic phase indication handheld terminal comprises a control module, and a sampling module, a time service module, a communication module and a phase display module which are connected with the control module. The electronic phase indication handheld terminal adopts a modular structure, can be integrated and installed on a line, and has the advantages of mature technology, stability, reliability and convenient installation. According to the electronic phase indication handheld terminal, the GPS time service module is adopted, and the phase checking accuracy rate is ensured to be 100% through the color of the receiving module and the phase sequence display of the handheld signal receiver. The control module is flexible in installation and site selection, convenient to install, small in workload and high in working efficiency, adopts an anti-interference and anti-pollution shell, is good in sealing performance, is not interfered by external natural conditions such as rainwater, ice and snow, dust and corrosive gas and human factors, and ensures that a control circuit board in the control module operates safely and reliably.

Description

technical field [0001] The invention relates to an electronic phase indication handheld terminal, which belongs to the technical field of electric power industry. Background technique [0002] At present, the phase indication of the power grid mainly relies on manual phase verification, and three colors of yellow, green and red are used to indicate the phase at the interval of the substation and on the circuit tower. It will lead to confusion of the phase indication, and the management level of each region is inconsistent, and the standardization of the installation of the phase indication board is different, which will also cause the design and operation and maintenance personnel to misjudge the phase. In the on-site working conditions, due to the failure to replace the phase indicator board or phase color code in time, the phase of the line was wrong during the line transformation, and the delay in the construction period caused the project to fail to transmit power on sch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/18G04R20/02
CPCG01R29/18G04R20/02
Inventor 刘洪亮金丽勇张维佳曹威海
Owner STATE GRID CORP OF CHINA
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