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A 500kv substation relay protection system and its test system and test method

A technology of relay protection and testing method, applied in electromagnetic wave transmission systems, transmission systems, emergency protection circuit devices, etc., can solve the problems of affecting communication equipment, occupation, affecting communication equipment, system expansion capacity, etc., to save investment, reduce The effect of failure probability

Active Publication Date: 2018-09-18
INFORMATION COMM COMPANY STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the relay protection of Shandong Company's 500kV line is mainly transmitted through 2M multiplexing, and each relay protection device needs to be equipped with a set of 2M MUX equipment. On the one hand, a fault risk link is added between the protection device and the communication equipment , at the same time, 2M multiplexing equipment will occupy a large amount of space in the communication equipment room, affecting the expansion capacity of communication equipment and systems
[0005] To sum up, the 500kV substation line relay protection in the prior art is transmitted through 2M multiplexing, which occupies a large amount of space in the communication room, affects communication equipment, and expands the capacity of the system. At the same time, an increase of 1 There is still no effective solution to the problem of a failure risk link

Method used

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  • A 500kv substation relay protection system and its test system and test method
  • A 500kv substation relay protection system and its test system and test method
  • A 500kv substation relay protection system and its test system and test method

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Experimental program
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Effect test

Embodiment 1

[0049] As introduced in the background technology, the 500kV substation line relay protection in the prior art is transmitted through 2M multiplexing, which occupies a large amount of space in the communication equipment room, affects the expansion capacity of the communication equipment and the system, and increases the number of connections between the protection device and the communication equipment. One failure risk link is identified. In order to solve the above problems, a 500kV substation relay protection system is provided in this embodiment.

[0050] In a typical implementation of the present application, such as figure 1 as shown,

[0051] A 500kV substation relay protection system. In this embodiment, two OSN 3500 devices are installed in the protection room of the 500kV Jinan substation training base, which are the first intelligent optical transmission device 2 and the second intelligent optical transmission device respectively. 8. Configure one 2M optical inter...

Embodiment 2

[0062] As introduced in the background technology, the 500kV substation line relay protection in the prior art is transmitted through 2M multiplexing, which occupies a large amount of space in the communication equipment room, affects the expansion capacity of the communication equipment and the system, and increases the number of connections between the protection device and the communication equipment. One failure risk link is identified. In order to solve the above problems, a 500kV substation relay protection system is provided in this embodiment.

[0063] In a typical implementation of the present application,

[0064] A test system for a 500kV substation relay protection system, the system includes a 500kV substation relay protection system, a light source optical power meter and a local maintenance terminal;

[0065] The light source optical power meter is configured to test whether the transmission optical fiber 13 is broken;

[0066] The local maintenance terminal is...

Embodiment 3

[0069] As introduced in the background technology, the 500kV substation line relay protection in the prior art is transmitted through 2M multiplexing, which occupies a large amount of space in the communication equipment room, affects the expansion capacity of the communication equipment and the system, and increases the number of connections between the protection device and the communication equipment. One failure risk link is identified. In order to solve the above problems, a 500kV substation relay protection system is provided in this embodiment.

[0070] In a typical implementation of the present application,

[0071] A test method for a 500kV substation relay protection system, the method specifically includes the following steps:

[0072] (1): Use a light source optical power meter to test the LC-LC pigtails of 40km and 60km respectively to ensure that the entire transmission optical fiber 13 has no fiber breaks, and the loss of the transmission optical fiber 13 is 0.2...

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Abstract

The invention relates to a 500kV transformer substation relay protection system and a test system and a test method thereof. The 500kV transformer substation relay protection system comprises a plurality of SDH (Synchronous Digital Hierarchy) systems, wherein each SDH system comprises a relay protection device and an intelligent optical transmission device; 2M optical interface boards are configured on the intelligent optical transmission devices; the relay protection device and the intelligent optical transmission device of the same SDH system are connected with one 2M optical interface board through an access optical fiber; and the intelligent optical transmission devices of different SDH systems are connected through transmission optical fibers. The test system is built on the basis of the 500kV transformer substation relay protection system, and the test method is used for testing the transmission characteristic of a mainstream relay protection device to verify the validity and reliability of 2M optical interface equipment. The influence of a 2M optical interface channel on the relay protection service performance is tested through a plurality of experiment conditions, and the test system and the test method have great actual values for further testing and popularization of circuit performance.

Description

technical field [0001] The invention belongs to the technical field of substation relay protection, and in particular relates to a 500kV substation relay protection system, a test system and a test method thereof. Background technique [0002] At present, the scale of the power system is increasing with the development of the economy, and the structure is becoming more and more complex. The operation must be safe and reliable, with high power quality and good economy. However, due to the influence of natural conditions, equipment and artificial factors, various failures and abnormal operating conditions may occur. The most common and most harmful faults are various types of short circuits. Faults or abnormal operating conditions may lead to accidents if they are not dealt with in a timely manner. In order to deal with faults and abnormal operating conditions correctly in time and avoid accidents, relay protection is produced. Relay protection mainly uses the change of el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/26H02H1/00H04B10/032H04B10/079H04B10/25H04J3/16
CPCH02H1/0069H02H7/261H04B10/032H04B10/07955H04J3/1611
Inventor 朱尤祥刘磊王磊徐彬泰王立君王晓勇吕新荃周洁孙宁浩张彦钟睿高增峰李凯张庆李笑
Owner INFORMATION COMM COMPANY STATE GRID SHANDONG ELECTRIC POWER
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