The relay protection tester under UHV power can help many power workers conduct various power tests more conveniently.

Take electromagnetic interference protection measures for microcomputer relay protection tester during use

In the process of substation testing, when electromagnetic protection is replaced with microcomputer protection, the microcomputer relay protection tester must take technical measures to resist electromagnetic interference, that is, strictly follow the installation conditions of the microcomputer relay protection tester, install cable with shielding layer, and the shielding layer at both ends must be grounded. The purpose of doing this is to prevent the microcomputer relay protection tester from being scrapped or malfunctioning due to electromagnetic interference voltage and current caused by a long circuit with one end grounded.

In order to reduce the probability of faults and errors in relay protection testers, microcomputer relay protection testers must be designed, optimized, manufactured reasonably, and of high quality. At the same time, shielding and isolation techniques should be adopted to ensure the reliability of the microcomputer relay protection tester, thereby improving its anti-interference ability.

Daily maintenance of microcomputer relay protection tester:

The daily maintenance of the microcomputer relay protection tester must be strict, and good habits should be developed. After each use, attention should be paid to cleaning, maintenance, and power-off.

1. Special duty operators are required to regularly inspect and check the microcomputer relay protection tester, and keep operation records.

2. Perform 5S work on the microcomputer relay protection tester. Sorting work must be carried out by two people to prevent accidental collisions between operating equipment. Maintain a safe distance from live equipment to avoid electric shock, secondary circuit short circuits, and grounding accidents.

3. Record the current and voltage sampling values of the microcomputer relay protection tester once a week, and record the differential current value of the differential protection.

4. Regularly measure the infrared temperature of the terminal block of the microcomputer relay protection tester to detect poor contact caused by heating as soon as possible.

5. Regularly inspect and print the printer of the microcomputer relay protection tester to prevent data loss.

6. Every month, professional personnel test the microcomputer relay protection tester to check for faults, various tests, and accuracy errors. And whether the time is correct, to facilitate fault analysis after the occurrence of the fault.