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Relay protection debugging method

A technology for relay protection and power transmission, applied in emergency protection circuit devices, electrical components, circuit devices, etc., can solve problems such as inconvenient relay protection, inability to locate, and low efficiency of fault detection

Inactive Publication Date: 2020-08-25
南京新唐电力工程有限公司
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Problems solved by technology

[0003] In the actual maintenance work of the existing power transmission system, due to the long laying distance of the line and the complex and changeable terrain environment that the line passes through, the cause of the failure may be the short circuit of the line caused by equipment failure or other reasons, etc. , Accurately locate a fault and determine its cause
Based on the above-mentioned state of the art, the main defects and deficiencies are: the control of relay protection is very inconvenient, the debugger can only determine the cause of the fault after on-site inspection, the scope of line inspection is wide, and the fault detection efficiency is not high , higher manpower and time costs

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0035] refer to figure 1 , is a method for relay protection debugging disclosed in the present invention, which is divided into the following execution steps in turn:

[0036] S1, divide the power transmission line 1 into several grid units 11, the length of the grid unit 11 is 3-5km, and mark the corresponding number for each grid unit 11, and the grid units 11 are respectively equipped with relay protection units 2. The signal acquisition module 21 of the relay protection unit 2 collects the power parameters of the corresponding grid unit 11 in real time. The power parameters are current, voltage or frequency. Threshold value comparison judgment, when the judgment result obtained indicates failure or abnormal operation, the protection execution module 23 of the relay protection unit 2 cuts off the target circuit of the grid unit 11, and inputs the initial ...

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Abstract

The invention relates to a relay protection debugging method, which comprises the following debugging steps: S1, dividing a power transmission line into a plurality of grid units, marking corresponding numbers, and respectively configuring relay protection units for the grid units; S2, the wireless communication equipment transmitting the preliminary diagnosis information of the grid units with the corresponding numbers to a data control center in a wireless transmission mode; S3, performing comparative analysis on the preliminary diagnosis information and the fault reason data stored in the fault database to obtain secondary diagnosis information of the grid unit fault reason; S4, the debugger sending fault elimination confirmation information and fault reason result information of the grid unit to the data control center through the intelligent terminal; and S5, the data control center receiving and storing the troubleshooting confirmation information and the fault reason result information of the grid unit. Relay protection and remote intelligent monitoring of a power transmission line can be realized, and a debugger can quickly and accurately locate a fault area and eliminate the fault area.

Description

technical field [0001] The invention relates to the technical field of relay protection, in particular to a method for debugging relay protection. Background technique [0002] At present, the power system is a large system composed of electric energy generation, transmission, distribution and power consumption. The rapid development of the power system puts forward new requirements for the relay protection of the power system. Any accident in the power system , may have a significant impact on the operation of the power system. When the line in the power transmission system or the power equipment itself has a fault that endangers the safe operation of the power system, the relay protection device can send a warning signal to the operator on duty in time, or directly issue a trip command to the controlled circuit breaker to quickly terminate the fault Continue to expand and realize the automatic protection measures of the power transmission system. The relay protection dev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08H02H7/26H02J13/00
CPCG01R31/086H02H7/262H02J13/00022Y02E60/00Y04S10/20Y04S10/52Y04S40/126
Inventor 汪春来唐秀梅
Owner 南京新唐电力工程有限公司
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