PB / P+B / P&B 變壓器保護瓦斯繼電器Buchholz Relay for Protection Transformer |
1SE |
1SENO |
1SENKIML |
1SET |
1SET/K |
1SETNO |
1SET/HF |
1DE |
1DE/K |
1DE/AKTO |
1DENO |
1DENc/o |
2DE |
2DE/K |
2DE/AKTO |
2DENO |
2DENc/o |
3DE |
3DE/K |
3DE/AKTO |
3DENO |
3DENc/o |
3DE/HF2 |
3DE/HF2NO |