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Remote Switching Method of Fixed Value Area of ​​Relay Protection Device

A relay protection device, technology of protection device, applied in emergency protection circuit device, circuit device, emergency protection device with automatic disconnection, etc., can solve the problems of increased material resources, waste of manpower, etc. Effect

Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After the remote switching operation of the substation, the operation mode changes, especially when the power is transmitted from the side bus, it is necessary to switch the fixed value area of ​​​​the relay protection, which requires on-site operators to go to the site to switch the fixed value area , it is necessary to read the fixed value and dispatch check on site, which wastes manpower and material resources and increases the time for switching operation and power transmission

Method used

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  • Remote Switching Method of Fixed Value Area of ​​Relay Protection Device
  • Remote Switching Method of Fixed Value Area of ​​Relay Protection Device

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Embodiment Construction

[0023] Combine below figure 1 , figure 2 The present invention is further described.

[0024] In the remote switching method of the fixed value area of ​​the relay protection device, the main station of the remote centralized control center switches the fixed value area and checks the fixed value of the protection device in the connected substation through the server through the network form of the telecontrol channel.

[0025] Follow these steps:

[0026] 1) Set the fixed value area group number for the fixed value area of ​​the protection device. The fixed value area group number is an independent group, and the remote master station can obtain its group number through the group call. There is only one entry with a unique number in the fixed value area code group, which is used to store the current fixed value area code (such as figure 2 The fixed value group number part of the fixed value area corresponds to each fixed value area of ​​different protection devices. For ...

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Abstract

A method for remote switching of the fixed value area of ​​a relay protection device, 1) forming an independent fixed value area group number; 2) performing remote calling for the current fixed value area group; 3) performing remote setting for the fixed value area group of the protection device; 4 ) Summon the fixed value; 5) Check the fixed value; finally carry out corresponding processing according to the result of the fixed value check. The invention adopts a flexible and efficient method, so that the dispatcher can complete the switching of the fixed value area of ​​the unattended substation in the dispatching room and the fixed value review work of checking the fixed value after switching. The checking of the reading achieves the purpose of double confirmation after switching the fixed value area on site, thus saving the manpower, material resources and time for switching the fixed value area generated by the operating personnel and switching operation and power transmission time, and better ensuring the power system. The stable operation of the system and the reliability and safety of power supply for people's production and life.

Description

technical field [0001] The invention belongs to the field of electric power system relay protection, in particular to a method for remote switching of a fixed value area of ​​a relay protection device. Background technique [0002] At present, the power grid is developing rapidly, and most substations have become unattended substations. The work that previously required on-site operators can be carried out through remote operations, such as: adjusting the operating mode, pulling and closing switches, operating monitoring, adjusting taps, switching on and off capacitors, etc. After the remote switching operation of the substation, the operation mode changes, especially when the power is transmitted from the side bus, it is necessary to switch the fixed value area of ​​​​the relay protection, which requires on-site operators to go to the site to switch the fixed value area , It is necessary to read the fixed value and dispatch check on site, which wastes manpower and material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/00
Inventor 魏凯朱宇王涛谷博刘阳
Owner STATE GRID CORP OF CHINA