A brief discussion on the performance testing of automatic reclosing
Publish Time:
2015-08-14
In recent years, the application market for automatic reclosing has become increasingly broad. However, due to the delay in the release of national standards, the existing automatic reclosing products are numerous, diverse in function, and vary greatly in quality. How to test and verify the performance of automatic reclosing products has always been ambiguous in the technical field. The following is a summary of the experience accumulated in recent years, for reference only.
In recent years, the application market for automatic reclosing has become increasingly broad. However, due to the delayed release of national standards, the existing automatic reclosing products are diverse in type and function, and their quality varies greatly. How to test and verify the performance of automatic reclosing products has always been rather ambiguous in the technical field. The following is a summary of the experience accumulated in recent years, for reference only.
I. Reliability Test:
Test items mainly include the following: mechanical life test, mechanical life test, breaking capacity, manual operating cycles, temperature rise test, power-frequency withstand voltage, etc.;
The main purpose is to verify the feasibility of the design scheme and the operational reliability of the product.
II. Protection Performance Test:
Test items mainly include: residual current operating characteristics, current protection characteristics, slow and sudden change functions, automatic reclosing time, undervoltage and overvoltage functions, phase-loss protection, zero-break protection, human body characteristic wave identification function, etc.
The main purpose is to test whether the functions of the product meet the predetermined design requirements.
III. Communication Function:
Verify that the communication protocol used is matched, and reliably establish communication with intelligent transformer substations of common brands; data acquisition, remote signaling status, remote control, and networking functions can be completed;
The main purpose is to verify whether the communication function meets the requirements.
IV. Special Test:
Test items mainly include: salt spray test, high temperature and humidity resistance test, three-proof test, etc.;
The main purpose is to verify whether the product meets the requirements for use in special environments.
Through the above test items, the product performance can be tested comprehensively, providing a reference for product improvement and upgrading.
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