Series compensation analog quantity channel precision measuring device and method

A technology of precision measurement and analog quantity, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of reducing power transmission capacity, increasing the power outage process and power outage time of the series compensator device, and reducing the power outage process and power outage time , Improve the effect of conveying capacity

Inactive Publication Date: 2015-09-09
STATE GRID CORP OF CHINA +1
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  • Claims
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Problems solved by technology

[0004] It is precisely because the existing series compensation analog channel accuracy test process needs to be carried out in the power failure state of the series compensation device, so the power failure process and power failure time of the series compensation device are increased, and the power transmission capacity is reduced.

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  • Series compensation analog quantity channel precision measuring device and method
  • Series compensation analog quantity channel precision measuring device and method
  • Series compensation analog quantity channel precision measuring device and method

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] A series compensation analog channel accuracy measurement device provided by the embodiment of the present application is as follows: figure 1 as shown, figure 1 It is a schematic diagram of a serial compensation analog channel accuracy measurement device provided in the embodiment of the present application. The unit includes:

[0027] The current-voltage conversion part 102 connected with the analog data acquisition board 101 of the series compensat...

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Abstract

The invention discloses a series compensation analog quantity channel precision measuring device and method. The device comprises a current-voltage conversion part connected with a series compensation protection system simulation analog data collection board, a voltage measuring part connected with the current-voltage conversion part, and a judging part connected with the voltage measuring part, wherein the current-voltage conversion part is used for converting a collected analog current into an analog voltage, and the judging part is used for judging whether the series compensation analog quantity channel precision is qualified. The method comprises the steps of: collecting the analog current; converting the analog current into the analog voltage; measuring the analog voltage; and utilizing the analog voltage to judge whether the series compensation analog quantity channel precision is qualified. The series compensation analog quantity channel precision measuring device and method provided by the invention are capable of carrying out a series compensation analog quantity channel precision test under the operation condition of a series compensation high voltage device, so that the power failure process and the power failure time of the series compensation device are effectively reduced, and the conveying capacity of a super-high voltage power transmission line is improved.

Description

technical field [0001] The invention relates to the field of relay protection of power systems, in particular to a series compensation analog channel accuracy measuring device and method. Background technique [0002] The series compensation analog channel accuracy test is one of the important tests of the series compensation protection system. It is a necessary item in the second test of the series compensation protection system to verify the transmission of the analog data signal from the high voltage platform equipment of the series compensation system to the ground protection. precision in the system. To ensure the accuracy of the current analog quantity collected by the series compensation protection system in the steady state and transient state process, to improve the sensitivity and reliability of the series compensation protection system. [0003] In the previous series compensation analog channel accuracy test, it needs to be carried out in the power failure state...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 孙彦辉祁胜利闫红斌王玉郝佳希张蓉黄石磊董云奇
Owner STATE GRID CORP OF CHINA
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