Digital protecting tester, automatic closed loop test system and method

A test method and tester technology, which are applied in the parts, instruments, and measuring power of electrical measuring instruments, can solve problems such as no implementation plan, and achieve the goal of improving test efficiency, reducing workload, and improving overall technical level. Effect

Inactive Publication Date: 2010-12-22
NORTH CHINA GRID +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps protect digital systems from damage caused by external factors such as lightning or power failures during their operation. It automates tests on these systems while still providing them with accurate data about how well they are doing at different times. Additionally it allows users to communicate more quickly through various means like email messages without having to manually input any specific details that may be difficult due to lacking direct accessibility. Overall this technology makes sure all things happening right before failure can happen again effectively.

Problems solved by technology

This patented technical problem addressed in this patents relates to improvements over existing analog protectors used during tests with different types of devices or standards being tested. These new designs require manual inputting of certain variables like voltage levels, which makes them time-consuming and prone to errors due to human error. Additionally, they lack flexibility because users may only want access limited options when needed without having full knowledge about how many components were involved.

Method used

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  • Digital protecting tester, automatic closed loop test system and method
  • Digital protecting tester, automatic closed loop test system and method
  • Digital protecting tester, automatic closed loop test system and method

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Embodiment Construction

[0039] The digital protection tester, automatic closed-loop test system and method proposed by the present invention are used for the test of the digital intelligent substation protection system, and are described as follows with reference to the accompanying drawings.

[0040] like figure 1 As shown, the digital protection tester of the present invention comprises PWF main control board, FT3 board (link layer is selected as the FT3 format of IEC 60870-5-1, handles data according to FT3 format), binary input quantity board, binary output quantity board, Ethernet interface and fiber optic interface.

[0041] The FT3 board is connected to the PWF main control board, including CH1, CH2 and CH3 optical fiber interfaces, for sending sampling values ​​conforming to the FT3 format;

[0042] The binary input board is connected to the PWF main control board for association with the input of the tester. The binary input board includes 8 pairs of digital input terminals, input level con...

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PUM

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Abstract

The invention discloses a digital protecting tester which comprises a PWF main control board, a FT3 board, an input measuring board, an output measuring board, an Ethernet interface and an optical fiber interface. An automatic closed loop test system comprises a computer, a network connecting device and the digital protecting tester, and the digital protecting tester is connected with a protecting device by the optical fiber interface and is used for sending a sampling value and issuing/subscribing GOOSE information. An automatic closed loop test method comprises the following steps of: establishing a test task according to a test plan by a tester, automatically configuring GOOSE parameters and automatically reading/writing the set value of a relay protecting device; simulating a fault according to the test task and the protecting set value and automatically analyzing GOOSE data to obtain a test result; automatically reading the sampling value of the relay protecting device; automatically reading the switching-off/switching-on report of the protecting device; and automatically generating a complete test report by software after completing test. By the invention, the automatic test can be completed, the test efficiency is improved, and the workload of the tester is lightened.

Description

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Claims

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Application Information

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Owner NORTH CHINA GRID
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