Off-circuit pipe form and drum form tap changer

The specification of the product is rated voltage 110kV and below,rated current 2000A and below with three-phase parallel operation,1+2 phase or single phase operation,the way of operating are direct or parallel operation on transformer cover bottom and side.

The usage scope and technical features of tube-type tap changer

This is an new three-phase tube-type tap changer,it is combined by the body of tap changer and an operating turning framework,when the transformer is under non-energized state,we can turn over the tap position to change transformer ratio and stabilize output voltage.The single phase and"1+2"phase tube-type tap changer are suitable for installation on vertical direction,but the three-phase tube-type product is suitable for vertical or horizontal in stallation.

These series of products are specially designed for large or medium oil-immersed power transformer,full bermetically transformer or transformers for specially used,they are frequency normally on 50Hz or 60Hz,and suitable for flat type or bell-type oil tank,its rated voltage is up to 220kV and elow,rated current up to 2000A and below.

This product has many technical features and owned a certain of national patent right protection.

1)Simple and lively appearance,reliable structure equipped with solid construct pieces.

2)Light moment,turn over tap position clearly.The product has technical design features as following:body pieces and restricted each other and functioned each other,you can change the tap position freely and exactly,comared with the same type of products,it has obvious superiority features.

3)No conductors and switch cover being equipped on the outer body of product.This is a full hermetically outer insulation scren which can withstand high voltage impulse.So no puncture discharge will rise between the narrow gaps,even if the air gap of the tap changer is very near the active body of the transformer.

4)The inner structure of the tube-type tap changer can be drawn out as whole part,this helps to installation and maintenance.