Intelligent power grid network unified phasing system

Abstract

The invention discloses an intelligent power grid network unified phasing system which comprises a phasing system client which comprises a standard phasing base station and a plurality of hand-held phasing terminals; and a company terminal which comprises a server; and the standard phasing base station uninterruptedly takes power frequency three-phase electricity A, B and C as a phase color identification reference source to acquire phase information and remotely monitors real-time information such as phase and the like. Meanwhile, GPS pulse per second time information is collected and stored in a database of the server through an Internet platform; the hand-held phasing terminals have a TCP/IP communication network access function, and after an access network is linked to the server, data is automatically transmitted to each other through the network to complete phasing work. The system can judge the same direction, can determine the phase besides the phase sequence, and directly determines the A, B and C phases. Sampling errors caused by an on-site strong electric field can be reduced, and sampling values are more accurate. The phase can be directly determined, and the nuclear phase problem caused by 30 degrees or 60 degrees in an old phase tester is avoided.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a unified phasing system for smart grid networks. Background technique [0002] The unified phasing system of the smart grid network is used for the three-phase electric ultra-remote nuclear phase of the power system, including a standard phasing base station and multiple handheld phasing terminals. This product has strong adaptability, integrating the functions of long-distance and full-area coverage nuclear phase, GPS remote phase nuclear phase, short-distance nuclear phase, and ring main unit induction power phase. It is a high-tech product of phasing and nuclear phase that breaks through the bottleneck of current point-to-point phasing and nuclear phase constraints. [0003] The old nuclear phase products mainly have some defects, which are difficult to overcome, as follows: [0004] 1. In some step-down substation transformer terminals, the primary phase sequence is re...

AI Technical Summary

Problems solved by technology

It is difficult to distinguish the phase and phase sequence by the old phase nuclear device.

[0005] 2. The phase sequence identification A, B, and C of the existing line are not unified, and the old phase nuclear device cannot perform phasing

[0006] 3. Using the old nuclear phase detector to measure is affected by the strength of the space electric field. Since the measured phase is the space electric field and the synthetic vector electric field of A, B, and C, it is related to the distance between the sea area and the earth, and the space electric field is different, resulting in the measurement angle of the nuclear phase. error

When the error is large, it will not be possible to check the phase

And it cannot meet the relevant regulations of China's electric power industry standard "AC 1KV~35KV Portable Nuclear Phase Instrument for Live Work" DL / T971-2005: the phase relationship angle error should not exceed ±10

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