1、变压器出现强烈而不均匀的噪声且振动加大，是由于铁芯的穿芯螺丝夹得不紧，使铁芯松动，造成硅钢片间产生振动。振动能破坏硅钢片间的绝缘层，并引起铁芯局部过热。
2、如果“吱吱”声是由于绕组或出线对外壳闪络放电，或铁芯接地线断线造成铁芯对外壳感应而产生高电压，发生放电引起的，那么放电的电弧可能会损坏变压器的绝缘。在这种情况下，运行或监护人员应立即汇报，并等待采取措施。
3、如保护不动作，则应立即手动停用变压器。
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| Updated: 2018年9月9日 |
| 1824 views |
| Kinnen Denko | 2020年2月26日 |
Noise from transformers:
First, in the inspection process, if the transformer noise is found to be significantly improved than usual normal operation, there may be power distribution transformer soverload, or the distribution system appeared high harmonics, should be detected online harmonic content.
Then, the transformer appears strong and uneven noise and vibration is very large:
1, the transformer appears strong and uneven noise and vibration increase, is due to the core of the core screw clamped not tight, so that the iron core loose, resulting in vibration between silicon steel sheet. Vibration can damage the insulation between silicon steel sheets and cause the core to overheat locally.
2, If the sound like "zizi" is caused by winding or out-of-line flash discharge to the housing, or the iron core ground wire break caused by the core to sense the shell and produce high voltage, discharge caused by the discharge, then the discharge arc may damage the insulation of the transformer. In such cases, the operation or guardian should report immediately and wait for action to be taken.
3, If the protection does not act, the transformer should be deactivated manually immediately.
变压器的噪声：
一、在巡检过程中，如果发现变压器噪声比平时正常运行时有明显的提高，有可能是配电变压器承受过载，或者配电系统中出现了高次谐波，应在线检测谐波含量。
二、变压器出现强烈而不均匀的噪声且振动很大：
1、变压器出现强烈而不均匀的噪声且振动加大，是由于铁芯的穿芯螺丝夹得不紧，使铁芯松动，造成硅钢片间产生振动。振动能破坏硅钢片间的绝缘层，并引起铁芯局部过热。
2、如果“吱吱”声是由于绕组或出线对外壳闪络放电，或铁芯接地线断线造成铁芯对外壳感应而产生高电压，发生放电引起的，那么放电的电弧可能会损坏变压器的绝缘。在这种情况下，运行或监护人员应立即汇报，并等待采取措施。
3、如保护不动作，则应立即手动停用变压器。 |
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