| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an oil-immersed bushing easy to carry out oil lifting operation, without interruptions during periodical deterioration diagnosis, for a bushing mounted in a transformer. SOLUTION: An oil valve of the oil-immersed bushing is provided at the end part of an expansion-free piping that is mounted at an in-air side body part of the mounting flange. The oil valve is extended downward, to take the oil at the oil lifting operation in the constitution.</p> |
