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| Coating Maintenance Technology of Isolated Ground Switch Transmission Shaft in Substation |
| Received:July 06, 2017 Revised:January 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.01.010 |
| KeyWord:isolating switch transmission shaft coating durability environmental testing |
| Author | Institution |
| LYU Wang-yan |
Electric Power Research Institute of Guangdong Power Grid Co., Ltd, Guangzhou , China |
| CHEN Chuan |
State Key Laboratory of Environmental Adaptability for Industrial Products, Guangzhou , China |
| RUAN Hong-mei |
State Key Laboratory of Environmental Adaptability for Industrial Products, Guangzhou , China |
| CHEN Tian-sheng |
Electric Power Research Institute of Guangdong Power Grid Co., Ltd, Guangzhou , China |
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| Abstract: |
| Objective To carry out testing research on maintenance coating on transmission shaft of isolation switch, put forward corresponding measures for follow-up maintenances to improve running quality by strengthening maintenance and patrol, and thus guarantee security and reliability of the system. Methods Aging of ultraviolet light, the medium salt fog, etc. were applied to carry out environment durability test on original isolation/grounding switch transmission shaft and coating samples made in the process and assess performance of the coating. Some suggestions were put forward for follow-up maintenance. Results After Uv test of 1000 h, there was no obvious defect on the original surface of the transmission shaft. The luster retention rate was 96.8%; the color difference ΔE*ab averages was 0.62; and the fastness was level 4-5. After salt spray test of 1000 h, there were bubbles, but no rust, no cracking, or peeling on the original surface of the transmission shaft with blister grade 2 (S2), rusting grade Ri0, cracking level 0 (S0) and flaking grade 0 (S0). Conclusion It is required to pay sufficient attention to the substation isolation switch, so as to strengthen management of process quality; timely grasp running status of equipment, find out causes as soon as possible, eliminate hidden dangers, and improve the system security and reliability. |
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