ABB VD4 embedded pole

1.VD4 embeded poles, ABB similar, rated voltage 12KV/24KV, 630A
2.Prompt delivery
3.Competitive price
4.well and good quality

Parameters of solid seal pole column

Mechanical data required for the matched vacuum switchgear

Information for solid seal pole column
From the development of insulation on breakers,it can be divided into three generations:air, composite and solid insulation. And so-called solid insulation means solid seal pole column,which might represent the great advancement of insulation on vacuum breakers.Since the epoxy can be used to replace the insulating and mechanical supports,the breakers therefore become compact and simple and are able to service under humid and dusty conditions.When the external insulation of miniature chambers in air condition fail to fulfill the requests of specifications,solid seal pole column are therefore introduced and now become one of the most applicable ways in the field of medium voltage breakers either at home or abroad.